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[Bug 1857610] [NEW] i worked with curves then it crash

To: ubuntustudio-bugs@xxxxxxxxxxxxxxxxxxx
From: Franjo <garfieldrace@xxxxxx>
Date: Thu, 26 Dec 2019 11:37:41 -0000
Reply-to: Bug 1857610 <1857610@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

```
GNU Image Manipulation Program version 2.10.14
git-describe: GIMP_2_10_12-511-ga4f55d6c7e
C compiler:
	Using built-in specs.
	COLLECT_GCC=gcc
	COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/7/lto-wrapper
	OFFLOAD_TARGET_NAMES=nvptx-none
	OFFLOAD_TARGET_DEFAULT=1
	Target: x86_64-linux-gnu
	Configured with: ../src/configure -v --with-pkgversion='Ubuntu 7.4.0-1ubuntu1~18.04.1' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-7 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
	Thread model: posix
	gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1) 

using babl version 0.1.72 (compiled against version 0.1.72)
using GEGL version 0.4.18 (compiled against version 0.4.18)
using GLib version 2.56.4 (compiled against version 2.56.4)
using GdkPixbuf version 2.36.11 (compiled against version 2.36.11)
using GTK+ version 2.24.32 (compiled against version 2.24.32)
using Pango version 1.40.14 (compiled against version 1.40.14)
using Fontconfig version 2.12.6 (compiled against version 2.12.6)
using Cairo version 1.15.10 (compiled against version 1.15.10)

```
> fatal error: Speicherzugriffsfehler

Stack trace:
```

# Stack traces obtained from PID 7545 - Thread 7545 #

[New LWP 7548]
[New LWP 7549]
[New LWP 7550]
[New LWP 7551]
[New LWP 7552]
[New LWP 7553]
[New LWP 7554]
[New LWP 7555]
[New LWP 7556]
[New LWP 7557]
[New LWP 7558]
[New LWP 7559]
[New LWP 7560]
[New LWP 7561]
[New LWP 7562]
[New LWP 7563]
[New LWP 7564]
[New LWP 7565]
[New LWP 7566]
[New LWP 7567]
[New LWP 7568]
[New LWP 7569]
[New LWP 7570]
[New LWP 7571]
[New LWP 7572]
[New LWP 7573]
[New LWP 7574]
[New LWP 7575]
[New LWP 7576]
[New LWP 7577]
[New LWP 7578]
[New LWP 7579]
[New LWP 7580]
[New LWP 7592]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f7e9b466384 in __libc_read (fd=36, buf=0x7ffca9237590, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
  Id   Target Id         Frame 
* 1    Thread 0x7f7ea0290e00 (LWP 7545) "gimp-2.10" 0x00007f7e9b466384 in __libc_read (fd=36, buf=0x7ffca9237590, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
  2    Thread 0x7f7e91fb9700 (LWP 7548) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  3    Thread 0x7f7e917b8700 (LWP 7549) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  4    Thread 0x7f7e90fb7700 (LWP 7550) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  5    Thread 0x7f7e907b6700 (LWP 7551) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  6    Thread 0x7f7e87fff700 (LWP 7552) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  7    Thread 0x7f7e8ffb5700 (LWP 7553) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  8    Thread 0x7f7e8f7b4700 (LWP 7554) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  9    Thread 0x7f7e8efb3700 (LWP 7555) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  10   Thread 0x7f7e8e7b2700 (LWP 7556) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  11   Thread 0x7f7e8dfb1700 (LWP 7557) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  12   Thread 0x7f7e8d7b0700 (LWP 7558) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  13   Thread 0x7f7e8cfaf700 (LWP 7559) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  14   Thread 0x7f7e877fe700 (LWP 7560) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  15   Thread 0x7f7e86ffd700 (LWP 7561) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  16   Thread 0x7f7e867fc700 (LWP 7562) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  17   Thread 0x7f7e85ffb700 (LWP 7563) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  18   Thread 0x7f7e857fa700 (LWP 7564) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  19   Thread 0x7f7e84ff9700 (LWP 7565) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  20   Thread 0x7f7e77fff700 (LWP 7566) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  21   Thread 0x7f7e777fe700 (LWP 7567) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  22   Thread 0x7f7e76ffd700 (LWP 7568) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  23   Thread 0x7f7e767fc700 (LWP 7569) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  24   Thread 0x7f7e75ffb700 (LWP 7570) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  25   Thread 0x7f7e43fff700 (LWP 7571) "gmain" 0x00007f7e9b178bf9 in __GI___poll (fds=0x55a40b9b7e60, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  26   Thread 0x7f7e437fe700 (LWP 7572) "gdbus" 0x00007f7e9b178bf9 in __GI___poll (fds=0x55a40b9ca9b0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  27   Thread 0x7f7e19115700 (LWP 7573) "gimp-2.10" 0x00007f7e9b178bf9 in __GI___poll (fds=0x7f7de8000bd0, nfds=11, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
  28   Thread 0x7f7e18914700 (LWP 7574) "gimp-2.10" 0x00007f7e9b462f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f7e18913770, expected=0, futex_word=0x7f7dec000b48) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  29   Thread 0x7f7e01fff700 (LWP 7575) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  30   Thread 0x7f7e017fe700 (LWP 7576) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  31   Thread 0x7f7e00ffd700 (LWP 7577) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  32   Thread 0x7f7de3fff700 (LWP 7578) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  33   Thread 0x7f7de37fe700 (LWP 7579) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c2e41b8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  34   Thread 0x7f7ddfe69700 (LWP 7580) "async" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  35   Thread 0x7f7ddee67700 (LWP 7592) "swap writer" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38

Thread 35 (Thread 0x7f7ddee67700 (LWP 7592)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d316dad in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7ddee67700) at pthread_create.c:463
        pd = 0x7f7ddee67700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140178587285248, 7187330325981923307, 140178587281664, 0, 94163210454496, 140723146153280, -7114215074393520149, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7f7ddfe69700 (LWP 7580)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055a40af1036c in  ()
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7ddfe69700) at pthread_create.c:463
        pd = 0x7f7ddfe69700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140178604070656, 7187330325981923307, 140178604067072, 0, 94163059311152, 140723146164512, -7114217274490517525, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7f7de37fe700 (LWP 7579)):
#0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c2e41b8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c2e41b8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c2e41b8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c2e41b8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 0
#3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007f7e9b45c6db in start_thread (arg=0x7f7de37fe700) at pthread_create.c:463
        pd = 0x7f7de37fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140178664449792, 7187330325981923307, 140178664446208, 0, 94163067356416, 140723146161232, -7114209503284066325, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7f7de3fff700 (LWP 7578)):
#0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c132ef8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 12884901888
#3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007f7e9b45c6db in start_thread (arg=0x7f7de3fff700) at pthread_create.c:463
        pd = 0x7f7de3fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140178672842496, 7187330325981923307, 140178672838912, 0, 94163063856896, 140723146161232, -7114208404309309461, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7f7e00ffd700 (LWP 7577)):
#0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c132ef8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 4294967296
#3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007f7e9b45c6db in start_thread (arg=0x7f7e00ffd700) at pthread_create.c:463
        pd = 0x7f7e00ffd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179159373568, 7187330325981923307, 140179159369984, 0, 94163067354560, 140723146161232, -7114975862351755285, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7f7e017fe700 (LWP 7576)):
#0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c132ef8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 0
#3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007f7e9b45c6db in start_thread (arg=0x7f7e017fe700) at pthread_create.c:463
        pd = 0x7f7e017fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179167766272, 7187330325981923307, 140179167762688, 0, 94163067354016, 140723146161232, -7114979161423509525, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7f7e01fff700 (LWP 7575)):
#0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c132ef8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 8589934592
#3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007f7e9b45c6db in start_thread (arg=0x7f7e01fff700) at pthread_create.c:463
        pd = 0x7f7e01fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179176158976, 7187330325981923307, 140179176155392, 0, 94163067353472, 140723146161232, -7114978062448752661, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f7e18914700 (LWP 7574)):
#0  0x00007f7e9b462f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f7e18913770, expected=0, futex_word=0x7f7dec000b48) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
        spin = 0
        buffer = {__routine = 0x7f7e9b462690 <__condvar_cleanup_waiting>, __arg = 0x7f7e18913700, __canceltype = 198603992, __prev = 0x0}
        cbuffer = {wseq = 84, cond = 0x7f7dec000b20, mutex = 0x55a40bbb4838, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 42
#1  0x00007f7e9b462f85 in __pthread_cond_wait_common (abstime=0x7f7e18913770, mutex=0x55a40bbb4838, cond=0x7f7dec000b20) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7f7e9b462690 <__condvar_cleanup_waiting>, __arg = 0x7f7e18913700, __canceltype = 198603992, __prev = 0x0}
        cbuffer = {wseq = 84, cond = 0x7f7dec000b20, mutex = 0x55a40bbb4838, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 42
#2  0x00007f7e9b462f85 in __pthread_cond_timedwait (cond=0x7f7dec000b20, mutex=0x55a40bbb4838, abstime=0x7f7e18913770) at pthread_cond_wait.c:667
#3  0x00007f7e1a4c3247 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007f7e1a4687c7 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007f7e9b45c6db in start_thread (arg=0x7f7e18914700) at pthread_create.c:463
        pd = 0x7f7e18914700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179554780928, 7187330325981923307, 140179554777344, 0, 94163062144240, 140723146160368, -7114922170428717077, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f7e19115700 (LWP 7573)):
#0  0x00007f7e9b178bf9 in __GI___poll (fds=0x7f7de8000bd0, nfds=11, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f7e1a4bfe33 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#2  0x00007f7e1a54870d in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#3  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e19115700) at pthread_create.c:463
        pd = 0x7f7e19115700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179563173632, 7187330325981923307, 140179563170048, 0, 94163059871568, 140723146160288, -7114925469500471317, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f7e437fe700 (LWP 7572)):
#0  0x00007f7e9b178bf9 in __GI___poll (fds=0x55a40b9ca9b0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f7e9bc625c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9bc62962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7e9cdeb0e6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7e9b45c6db in start_thread (arg=0x7f7e437fe700) at pthread_create.c:463
        pd = 0x7f7e437fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140180275062528, 7187330325981923307, 140180275058944, 0, 94163056504608, 140723146164592, -7115124296958375957, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f7e43fff700 (LWP 7571)):
#0  0x00007f7e9b178bf9 in __GI___poll (fds=0x55a40b9b7e60, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f7e9bc625c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9bc626dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7e9bc62721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7e9b45c6db in start_thread (arg=0x7f7e43fff700) at pthread_create.c:463
        pd = 0x7f7e43fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140180283455232, 7187330325981923307, 140180283451648, 0, 94163056504448, 140723146164208, -7115123197983619093, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f7e75ffb700 (LWP 7570)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e75ffb700) at pthread_create.c:463
        pd = 0x7f7e75ffb700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181122299648, 7187330325981923307, 140181122296064, 0, 94163056494368, 140723146164400, -7115004448580335637, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f7e767fc700 (LWP 7569)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e767fc700) at pthread_create.c:463
        pd = 0x7f7e767fc700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181130692352, 7187330325981923307, 140181130688768, 0, 94163056494288, 140723146164400, -7115007747652089877, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f7e76ffd700 (LWP 7568)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e76ffd700) at pthread_create.c:463
        pd = 0x7f7e76ffd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181139085056, 7187330325981923307, 140181139081472, 0, 94163056494208, 140723146164400, -7115006648677333013, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f7e777fe700 (LWP 7567)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e777fe700) at pthread_create.c:463
        pd = 0x7f7e777fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181147477760, 7187330325981923307, 140181147474176, 0, 94163056494128, 140723146164400, -7115009947749087253, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f7e77fff700 (LWP 7566)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e77fff700) at pthread_create.c:463
        pd = 0x7f7e77fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181155870464, 7187330325981923307, 140181155866880, 0, 94163056494048, 140723146164400, -7115008848774330389, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f7e84ff9700 (LWP 7565)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e84ff9700) at pthread_create.c:463
        pd = 0x7f7e84ff9700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181373949696, 7187330325981923307, 140181373946112, 0, 94163056493968, 140723146164400, -7114685589134538773, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f7e857fa700 (LWP 7564)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e857fa700) at pthread_create.c:463
        pd = 0x7f7e857fa700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181382342400, 7187330325981923307, 140181382338816, 0, 94163056493888, 140723146164400, -7114688888206293013, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f7e85ffb700 (LWP 7563)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e85ffb700) at pthread_create.c:463
        pd = 0x7f7e85ffb700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181390735104, 7187330325981923307, 140181390731520, 0, 94163056493808, 140723146164400, -7114687789231536149, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f7e867fc700 (LWP 7562)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e867fc700) at pthread_create.c:463
        pd = 0x7f7e867fc700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181399127808, 7187330325981923307, 140181399124224, 0, 94163056493728, 140723146164400, -7114691088303290389, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f7e86ffd700 (LWP 7561)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e86ffd700) at pthread_create.c:463
        pd = 0x7f7e86ffd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181407520512, 7187330325981923307, 140181407516928, 0, 94163056493648, 140723146164400, -7114689989328533525, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f7e877fe700 (LWP 7560)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e877fe700) at pthread_create.c:463
        pd = 0x7f7e877fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181415913216, 7187330325981923307, 140181415909632, 0, 94163056493568, 140723146164400, -7114693288400287765, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f7e8cfaf700 (LWP 7559)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8cfaf700) at pthread_create.c:463
        pd = 0x7f7e8cfaf700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181507864320, 7187330325981923307, 140181507860736, 0, 94163056492400, 140723146164400, -7114667974399916053, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f7e8d7b0700 (LWP 7558)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8d7b0700) at pthread_create.c:463
        pd = 0x7f7e8d7b0700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181516257024, 7187330325981923307, 140181516253440, 0, 94163056492320, 140723146164400, -7114671273471670293, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f7e8dfb1700 (LWP 7557)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8dfb1700) at pthread_create.c:463
        pd = 0x7f7e8dfb1700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181524649728, 7187330325981923307, 140181524646144, 0, 94163056492240, 140723146164400, -7114670157317044245, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f7e8e7b2700 (LWP 7556)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8e7b2700) at pthread_create.c:463
        pd = 0x7f7e8e7b2700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181533042432, 7187330325981923307, 140181533038848, 0, 94163056492160, 140723146164400, -7114673456388798485, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f7e8efb3700 (LWP 7555)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8efb3700) at pthread_create.c:463
        pd = 0x7f7e8efb3700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181541435136, 7187330325981923307, 140181541431552, 0, 94163056492080, 140723146164400, -7114672357414041621, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f7e8f7b4700 (LWP 7554)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8f7b4700) at pthread_create.c:463
        pd = 0x7f7e8f7b4700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181549827840, 7187330325981923307, 140181549824256, 0, 94163056492000, 140723146164400, -7114675656485795861, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f7e8ffb5700 (LWP 7553)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8ffb5700) at pthread_create.c:463
        pd = 0x7f7e8ffb5700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181558220544, 7187330325981923307, 140181558216960, 0, 94163056491920, 140723146164400, -7114674557511038997, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f7e87fff700 (LWP 7552)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e87fff700) at pthread_create.c:463
        pd = 0x7f7e87fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181424305920, 7187330325981923307, 140181424302336, 0, 94163056491840, 140723146164400, -7114692189425530901, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f7e907b6700 (LWP 7551)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e907b6700) at pthread_create.c:463
        pd = 0x7f7e907b6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181566613248, 7187330325981923307, 140181566609664, 0, 94163056491760, 140723146164400, -7114660264396748821, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f7e90fb7700 (LWP 7550)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e90fb7700) at pthread_create.c:463
        pd = 0x7f7e90fb7700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181575005952, 7187330325981923307, 140181575002368, 0, 94163056491680, 140723146164400, -7114659165421991957, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f7e917b8700 (LWP 7549)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e917b8700) at pthread_create.c:463
        pd = 0x7f7e917b8700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181583398656, 7187330325981923307, 140181583395072, 0, 94163056491600, 140723146164400, -7114662464493746197, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f7e91fb9700 (LWP 7548)):
#0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e91fb9700) at pthread_create.c:463
        pd = 0x7f7e91fb9700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181591791360, 7187330325981923307, 140181591787776, 0, 94163056491520, 140723146164400, -7114661365518989333, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f7ea0290e00 (LWP 7545)):
#0  0x00007f7e9b466384 in __libc_read (fd=36, buf=0x7ffca9237590, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
        resultvar = 18446744073709551104
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
        sc_ret = <optimized out>
        nbytes = 256
        fd = 36
        buf = 0x7ffca9237590
#1  0x00007f7e9e8d7da0 in gimp_stack_trace_print () at /usr/lib/libgimpbase-2.0.so.0
#2  0x000055a40ac3bab4 in  ()
#3  0x000055a40ac3c0b8 in  ()
#4  0x000055a40ac3c7c7 in  ()
#5  0x00007f7e9b467890 in <signal handler called> () at /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f7e9d3273ab in gegl_buffer_cl_cache_flush2 () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#7  0x00007f7e9d3195a7 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#8  0x00007f7e9d31a612 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#9  0x00007f7e9d31a04b in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#10 0x00007f7e9d3024c0 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#11 0x00007f7e9d2f721d in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#12 0x00007f7e9d2f87b9 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#13 0x00007f7e9d2fa72c in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#14 0x00007f7e9d2fb9c3 in gegl_buffer_copy () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#15 0x00007f7e8c5a6e27 in  () at /usr/lib/x86_64-linux-gnu/gegl-0.4/gegl-core.so
#16 0x00007f7e9d32fcfe in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#17 0x00007f7e9d2df0f5 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#18 0x00007f7e9d2df3c3 in gegl_parallel_distribute () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#19 0x00007f7e9d2dfb52 in gegl_parallel_distribute_area () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#20 0x00007f7e9d32fca3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#21 0x00007f7e9d334ac7 in gegl_operation_process () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#22 0x00007f7e9d336951 in gegl_graph_process () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#23 0x00007f7e9d335ba5 in gegl_eval_manager_apply () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#24 0x00007f7e9d31ec4a in gegl_node_blit_buffer () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#25 0x000055a40b057004 in  ()
#26 0x000055a40b057ca0 in gimp_tile_handler_validate_validate ()
#27 0x000055a40afc7156 in  ()
#28 0x000055a40afc756e in  ()
#29 0x000055a40afc75a9 in  ()
#30 0x00007f7e9bc62285 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f7e9bc62650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f7e9bc62962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x000055a40ac3b470 in app_run ()
#34 0x000055a40ac3ad3c in main ()

```

** Affects: gimp (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1857610

Title:
  i worked with curves then it crash

Status in gimp package in Ubuntu:
  New

Bug description:
  ```
  GNU Image Manipulation Program version 2.10.14
  git-describe: GIMP_2_10_12-511-ga4f55d6c7e
  C compiler:
  	Using built-in specs.
  	COLLECT_GCC=gcc
  	COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/7/lto-wrapper
  	OFFLOAD_TARGET_NAMES=nvptx-none
  	OFFLOAD_TARGET_DEFAULT=1
  	Target: x86_64-linux-gnu
  	Configured with: ../src/configure -v --with-pkgversion='Ubuntu 7.4.0-1ubuntu1~18.04.1' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-7 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
  	Thread model: posix
  	gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1) 

  using babl version 0.1.72 (compiled against version 0.1.72)
  using GEGL version 0.4.18 (compiled against version 0.4.18)
  using GLib version 2.56.4 (compiled against version 2.56.4)
  using GdkPixbuf version 2.36.11 (compiled against version 2.36.11)
  using GTK+ version 2.24.32 (compiled against version 2.24.32)
  using Pango version 1.40.14 (compiled against version 1.40.14)
  using Fontconfig version 2.12.6 (compiled against version 2.12.6)
  using Cairo version 1.15.10 (compiled against version 1.15.10)

  ```
  > fatal error: Speicherzugriffsfehler

  Stack trace:
  ```

  # Stack traces obtained from PID 7545 - Thread 7545 #

  [New LWP 7548]
  [New LWP 7549]
  [New LWP 7550]
  [New LWP 7551]
  [New LWP 7552]
  [New LWP 7553]
  [New LWP 7554]
  [New LWP 7555]
  [New LWP 7556]
  [New LWP 7557]
  [New LWP 7558]
  [New LWP 7559]
  [New LWP 7560]
  [New LWP 7561]
  [New LWP 7562]
  [New LWP 7563]
  [New LWP 7564]
  [New LWP 7565]
  [New LWP 7566]
  [New LWP 7567]
  [New LWP 7568]
  [New LWP 7569]
  [New LWP 7570]
  [New LWP 7571]
  [New LWP 7572]
  [New LWP 7573]
  [New LWP 7574]
  [New LWP 7575]
  [New LWP 7576]
  [New LWP 7577]
  [New LWP 7578]
  [New LWP 7579]
  [New LWP 7580]
  [New LWP 7592]
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
  0x00007f7e9b466384 in __libc_read (fd=36, buf=0x7ffca9237590, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
    Id   Target Id         Frame 
  * 1    Thread 0x7f7ea0290e00 (LWP 7545) "gimp-2.10" 0x00007f7e9b466384 in __libc_read (fd=36, buf=0x7ffca9237590, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
    2    Thread 0x7f7e91fb9700 (LWP 7548) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    3    Thread 0x7f7e917b8700 (LWP 7549) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    4    Thread 0x7f7e90fb7700 (LWP 7550) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    5    Thread 0x7f7e907b6700 (LWP 7551) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    6    Thread 0x7f7e87fff700 (LWP 7552) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    7    Thread 0x7f7e8ffb5700 (LWP 7553) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    8    Thread 0x7f7e8f7b4700 (LWP 7554) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    9    Thread 0x7f7e8efb3700 (LWP 7555) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    10   Thread 0x7f7e8e7b2700 (LWP 7556) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    11   Thread 0x7f7e8dfb1700 (LWP 7557) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    12   Thread 0x7f7e8d7b0700 (LWP 7558) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    13   Thread 0x7f7e8cfaf700 (LWP 7559) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    14   Thread 0x7f7e877fe700 (LWP 7560) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    15   Thread 0x7f7e86ffd700 (LWP 7561) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    16   Thread 0x7f7e867fc700 (LWP 7562) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    17   Thread 0x7f7e85ffb700 (LWP 7563) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    18   Thread 0x7f7e857fa700 (LWP 7564) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    19   Thread 0x7f7e84ff9700 (LWP 7565) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    20   Thread 0x7f7e77fff700 (LWP 7566) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    21   Thread 0x7f7e777fe700 (LWP 7567) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    22   Thread 0x7f7e76ffd700 (LWP 7568) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    23   Thread 0x7f7e767fc700 (LWP 7569) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    24   Thread 0x7f7e75ffb700 (LWP 7570) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    25   Thread 0x7f7e43fff700 (LWP 7571) "gmain" 0x00007f7e9b178bf9 in __GI___poll (fds=0x55a40b9b7e60, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
    26   Thread 0x7f7e437fe700 (LWP 7572) "gdbus" 0x00007f7e9b178bf9 in __GI___poll (fds=0x55a40b9ca9b0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
    27   Thread 0x7f7e19115700 (LWP 7573) "gimp-2.10" 0x00007f7e9b178bf9 in __GI___poll (fds=0x7f7de8000bd0, nfds=11, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
    28   Thread 0x7f7e18914700 (LWP 7574) "gimp-2.10" 0x00007f7e9b462f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f7e18913770, expected=0, futex_word=0x7f7dec000b48) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
    29   Thread 0x7f7e01fff700 (LWP 7575) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
    30   Thread 0x7f7e017fe700 (LWP 7576) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
    31   Thread 0x7f7e00ffd700 (LWP 7577) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
    32   Thread 0x7f7de3fff700 (LWP 7578) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
    33   Thread 0x7f7de37fe700 (LWP 7579) "gimp-2.10" 0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c2e41b8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
    34   Thread 0x7f7ddfe69700 (LWP 7580) "async" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    35   Thread 0x7f7ddee67700 (LWP 7592) "swap writer" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38

  Thread 35 (Thread 0x7f7ddee67700 (LWP 7592)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d316dad in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7ddee67700) at pthread_create.c:463
          pd = 0x7f7ddee67700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140178587285248, 7187330325981923307, 140178587281664, 0, 94163210454496, 140723146153280, -7114215074393520149, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 34 (Thread 0x7f7ddfe69700 (LWP 7580)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055a40af1036c in  ()
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7ddfe69700) at pthread_create.c:463
          pd = 0x7f7ddfe69700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140178604070656, 7187330325981923307, 140178604067072, 0, 94163059311152, 140723146164512, -7114217274490517525, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 33 (Thread 0x7f7de37fe700 (LWP 7579)):
  #0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c2e41b8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
          __ret = -512
          oldtype = 0
          err = <optimized out>
  #1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c2e41b8, abstime=0x0) at sem_waitcommon.c:111
  #2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c2e41b8, abstime=0x0) at sem_waitcommon.c:181
          _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c2e41b8, __canceltype = 0, __prev = 0x0}
          err = <optimized out>
          d = 0
  #3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #6  0x00007f7e9b45c6db in start_thread (arg=0x7f7de37fe700) at pthread_create.c:463
          pd = 0x7f7de37fe700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140178664449792, 7187330325981923307, 140178664446208, 0, 94163067356416, 140723146161232, -7114209503284066325, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 32 (Thread 0x7f7de3fff700 (LWP 7578)):
  #0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
          __ret = -512
          oldtype = 0
          err = <optimized out>
  #1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:111
  #2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:181
          _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c132ef8, __canceltype = 0, __prev = 0x0}
          err = <optimized out>
          d = 12884901888
  #3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #6  0x00007f7e9b45c6db in start_thread (arg=0x7f7de3fff700) at pthread_create.c:463
          pd = 0x7f7de3fff700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140178672842496, 7187330325981923307, 140178672838912, 0, 94163063856896, 140723146161232, -7114208404309309461, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 31 (Thread 0x7f7e00ffd700 (LWP 7577)):
  #0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
          __ret = -512
          oldtype = 0
          err = <optimized out>
  #1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:111
  #2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:181
          _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c132ef8, __canceltype = 0, __prev = 0x0}
          err = <optimized out>
          d = 4294967296
  #3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #6  0x00007f7e9b45c6db in start_thread (arg=0x7f7e00ffd700) at pthread_create.c:463
          pd = 0x7f7e00ffd700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179159373568, 7187330325981923307, 140179159369984, 0, 94163067354560, 140723146161232, -7114975862351755285, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 30 (Thread 0x7f7e017fe700 (LWP 7576)):
  #0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
          __ret = -512
          oldtype = 0
          err = <optimized out>
  #1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:111
  #2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:181
          _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c132ef8, __canceltype = 0, __prev = 0x0}
          err = <optimized out>
          d = 0
  #3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #6  0x00007f7e9b45c6db in start_thread (arg=0x7f7e017fe700) at pthread_create.c:463
          pd = 0x7f7e017fe700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179167766272, 7187330325981923307, 140179167762688, 0, 94163067354016, 140723146161232, -7114979161423509525, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 29 (Thread 0x7f7e01fff700 (LWP 7575)):
  #0  0x00007f7e9b4656d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55a40c132ef8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
          __ret = -512
          oldtype = 0
          err = <optimized out>
  #1  0x00007f7e9b4656d6 in do_futex_wait (sem=sem@entry=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:111
  #2  0x00007f7e9b4657c8 in __new_sem_wait_slow (sem=0x55a40c132ef8, abstime=0x0) at sem_waitcommon.c:181
          _buffer = {__routine = 0x7f7e9b465690 <__sem_wait_cleanup>, __arg = 0x55a40c132ef8, __canceltype = 0, __prev = 0x0}
          err = <optimized out>
          d = 8589934592
  #3  0x00007f7e1a4c0487 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #4  0x00007f7e1a396eb6 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #6  0x00007f7e9b45c6db in start_thread (arg=0x7f7e01fff700) at pthread_create.c:463
          pd = 0x7f7e01fff700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179176158976, 7187330325981923307, 140179176155392, 0, 94163067353472, 140723146161232, -7114978062448752661, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 28 (Thread 0x7f7e18914700 (LWP 7574)):
  #0  0x00007f7e9b462f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f7e18913770, expected=0, futex_word=0x7f7dec000b48) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
          __ret = -516
          oldtype = 0
          err = <optimized out>
          spin = 0
          buffer = {__routine = 0x7f7e9b462690 <__condvar_cleanup_waiting>, __arg = 0x7f7e18913700, __canceltype = 198603992, __prev = 0x0}
          cbuffer = {wseq = 84, cond = 0x7f7dec000b20, mutex = 0x55a40bbb4838, private = 0}
          err = <optimized out>
          g = 0
          flags = <optimized out>
          maxspin = 0
          signals = <optimized out>
          result = 0
          seq = 42
  #1  0x00007f7e9b462f85 in __pthread_cond_wait_common (abstime=0x7f7e18913770, mutex=0x55a40bbb4838, cond=0x7f7dec000b20) at pthread_cond_wait.c:539
          spin = 0
          buffer = {__routine = 0x7f7e9b462690 <__condvar_cleanup_waiting>, __arg = 0x7f7e18913700, __canceltype = 198603992, __prev = 0x0}
          cbuffer = {wseq = 84, cond = 0x7f7dec000b20, mutex = 0x55a40bbb4838, private = 0}
          err = <optimized out>
          g = 0
          flags = <optimized out>
          maxspin = 0
          signals = <optimized out>
          result = 0
          seq = 42
  #2  0x00007f7e9b462f85 in __pthread_cond_timedwait (cond=0x7f7dec000b20, mutex=0x55a40bbb4838, abstime=0x7f7e18913770) at pthread_cond_wait.c:667
  #3  0x00007f7e1a4c3247 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #4  0x00007f7e1a4687c7 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #5  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #6  0x00007f7e9b45c6db in start_thread (arg=0x7f7e18914700) at pthread_create.c:463
          pd = 0x7f7e18914700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179554780928, 7187330325981923307, 140179554777344, 0, 94163062144240, 140723146160368, -7114922170428717077, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #7  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 27 (Thread 0x7f7e19115700 (LWP 7573)):
  #0  0x00007f7e9b178bf9 in __GI___poll (fds=0x7f7de8000bd0, nfds=11, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
          resultvar = 18446744073709551100
          sc_cancel_oldtype = 0
  #1  0x00007f7e1a4bfe33 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #2  0x00007f7e1a54870d in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #3  0x00007f7e1a4c24c8 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e19115700) at pthread_create.c:463
          pd = 0x7f7e19115700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140179563173632, 7187330325981923307, 140179563170048, 0, 94163059871568, 140723146160288, -7114925469500471317, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 26 (Thread 0x7f7e437fe700 (LWP 7572)):
  #0  0x00007f7e9b178bf9 in __GI___poll (fds=0x55a40b9ca9b0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
          resultvar = 18446744073709551100
          sc_cancel_oldtype = 0
  #1  0x00007f7e9bc625c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9bc62962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #3  0x00007f7e9cdeb0e6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
  #4  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #5  0x00007f7e9b45c6db in start_thread (arg=0x7f7e437fe700) at pthread_create.c:463
          pd = 0x7f7e437fe700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140180275062528, 7187330325981923307, 140180275058944, 0, 94163056504608, 140723146164592, -7115124296958375957, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #6  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 25 (Thread 0x7f7e43fff700 (LWP 7571)):
  #0  0x00007f7e9b178bf9 in __GI___poll (fds=0x55a40b9b7e60, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
          resultvar = 18446744073709551100
          sc_cancel_oldtype = 0
  #1  0x00007f7e9bc625c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9bc626dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #3  0x00007f7e9bc62721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #5  0x00007f7e9b45c6db in start_thread (arg=0x7f7e43fff700) at pthread_create.c:463
          pd = 0x7f7e43fff700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140180283455232, 7187330325981923307, 140180283451648, 0, 94163056504448, 140723146164208, -7115123197983619093, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #6  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 24 (Thread 0x7f7e75ffb700 (LWP 7570)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e75ffb700) at pthread_create.c:463
          pd = 0x7f7e75ffb700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181122299648, 7187330325981923307, 140181122296064, 0, 94163056494368, 140723146164400, -7115004448580335637, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 23 (Thread 0x7f7e767fc700 (LWP 7569)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e767fc700) at pthread_create.c:463
          pd = 0x7f7e767fc700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181130692352, 7187330325981923307, 140181130688768, 0, 94163056494288, 140723146164400, -7115007747652089877, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 22 (Thread 0x7f7e76ffd700 (LWP 7568)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e76ffd700) at pthread_create.c:463
          pd = 0x7f7e76ffd700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181139085056, 7187330325981923307, 140181139081472, 0, 94163056494208, 140723146164400, -7115006648677333013, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 21 (Thread 0x7f7e777fe700 (LWP 7567)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e777fe700) at pthread_create.c:463
          pd = 0x7f7e777fe700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181147477760, 7187330325981923307, 140181147474176, 0, 94163056494128, 140723146164400, -7115009947749087253, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 20 (Thread 0x7f7e77fff700 (LWP 7566)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e77fff700) at pthread_create.c:463
          pd = 0x7f7e77fff700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181155870464, 7187330325981923307, 140181155866880, 0, 94163056494048, 140723146164400, -7115008848774330389, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 19 (Thread 0x7f7e84ff9700 (LWP 7565)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e84ff9700) at pthread_create.c:463
          pd = 0x7f7e84ff9700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181373949696, 7187330325981923307, 140181373946112, 0, 94163056493968, 140723146164400, -7114685589134538773, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 18 (Thread 0x7f7e857fa700 (LWP 7564)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e857fa700) at pthread_create.c:463
          pd = 0x7f7e857fa700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181382342400, 7187330325981923307, 140181382338816, 0, 94163056493888, 140723146164400, -7114688888206293013, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 17 (Thread 0x7f7e85ffb700 (LWP 7563)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e85ffb700) at pthread_create.c:463
          pd = 0x7f7e85ffb700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181390735104, 7187330325981923307, 140181390731520, 0, 94163056493808, 140723146164400, -7114687789231536149, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 16 (Thread 0x7f7e867fc700 (LWP 7562)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e867fc700) at pthread_create.c:463
          pd = 0x7f7e867fc700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181399127808, 7187330325981923307, 140181399124224, 0, 94163056493728, 140723146164400, -7114691088303290389, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 15 (Thread 0x7f7e86ffd700 (LWP 7561)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e86ffd700) at pthread_create.c:463
          pd = 0x7f7e86ffd700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181407520512, 7187330325981923307, 140181407516928, 0, 94163056493648, 140723146164400, -7114689989328533525, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 14 (Thread 0x7f7e877fe700 (LWP 7560)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e877fe700) at pthread_create.c:463
          pd = 0x7f7e877fe700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181415913216, 7187330325981923307, 140181415909632, 0, 94163056493568, 140723146164400, -7114693288400287765, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 13 (Thread 0x7f7e8cfaf700 (LWP 7559)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8cfaf700) at pthread_create.c:463
          pd = 0x7f7e8cfaf700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181507864320, 7187330325981923307, 140181507860736, 0, 94163056492400, 140723146164400, -7114667974399916053, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 12 (Thread 0x7f7e8d7b0700 (LWP 7558)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8d7b0700) at pthread_create.c:463
          pd = 0x7f7e8d7b0700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181516257024, 7187330325981923307, 140181516253440, 0, 94163056492320, 140723146164400, -7114671273471670293, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 11 (Thread 0x7f7e8dfb1700 (LWP 7557)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8dfb1700) at pthread_create.c:463
          pd = 0x7f7e8dfb1700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181524649728, 7187330325981923307, 140181524646144, 0, 94163056492240, 140723146164400, -7114670157317044245, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 10 (Thread 0x7f7e8e7b2700 (LWP 7556)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8e7b2700) at pthread_create.c:463
          pd = 0x7f7e8e7b2700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181533042432, 7187330325981923307, 140181533038848, 0, 94163056492160, 140723146164400, -7114673456388798485, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 9 (Thread 0x7f7e8efb3700 (LWP 7555)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8efb3700) at pthread_create.c:463
          pd = 0x7f7e8efb3700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181541435136, 7187330325981923307, 140181541431552, 0, 94163056492080, 140723146164400, -7114672357414041621, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 8 (Thread 0x7f7e8f7b4700 (LWP 7554)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8f7b4700) at pthread_create.c:463
          pd = 0x7f7e8f7b4700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181549827840, 7187330325981923307, 140181549824256, 0, 94163056492000, 140723146164400, -7114675656485795861, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 7 (Thread 0x7f7e8ffb5700 (LWP 7553)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e8ffb5700) at pthread_create.c:463
          pd = 0x7f7e8ffb5700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181558220544, 7187330325981923307, 140181558216960, 0, 94163056491920, 140723146164400, -7114674557511038997, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 6 (Thread 0x7f7e87fff700 (LWP 7552)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e87fff700) at pthread_create.c:463
          pd = 0x7f7e87fff700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181424305920, 7187330325981923307, 140181424302336, 0, 94163056491840, 140723146164400, -7114692189425530901, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 5 (Thread 0x7f7e907b6700 (LWP 7551)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e907b6700) at pthread_create.c:463
          pd = 0x7f7e907b6700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181566613248, 7187330325981923307, 140181566609664, 0, 94163056491760, 140723146164400, -7114660264396748821, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 4 (Thread 0x7f7e90fb7700 (LWP 7550)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e90fb7700) at pthread_create.c:463
          pd = 0x7f7e90fb7700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181575005952, 7187330325981923307, 140181575002368, 0, 94163056491680, 140723146164400, -7114659165421991957, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 3 (Thread 0x7f7e917b8700 (LWP 7549)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e917b8700) at pthread_create.c:463
          pd = 0x7f7e917b8700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181583398656, 7187330325981923307, 140181583395072, 0, 94163056491600, 140723146164400, -7114662464493746197, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 2 (Thread 0x7f7e91fb9700 (LWP 7548)):
  #0  0x00007f7e9b17f839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007f7e9bca877f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007f7e9d2defc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007f7e9bc8a195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007f7e9b45c6db in start_thread (arg=0x7f7e91fb9700) at pthread_create.c:463
          pd = 0x7f7e91fb9700
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181591791360, 7187330325981923307, 140181591787776, 0, 94163056491520, 140723146164400, -7114661365518989333, -7114649117953914901}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007f7e9b18588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 1 (Thread 0x7f7ea0290e00 (LWP 7545)):
  #0  0x00007f7e9b466384 in __libc_read (fd=36, buf=0x7ffca9237590, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
          resultvar = 18446744073709551104
          sc_cancel_oldtype = 0
          sc_ret = <optimized out>
          sc_ret = <optimized out>
          nbytes = 256
          fd = 36
          buf = 0x7ffca9237590
  #1  0x00007f7e9e8d7da0 in gimp_stack_trace_print () at /usr/lib/libgimpbase-2.0.so.0
  #2  0x000055a40ac3bab4 in  ()
  #3  0x000055a40ac3c0b8 in  ()
  #4  0x000055a40ac3c7c7 in  ()
  #5  0x00007f7e9b467890 in <signal handler called> () at /lib/x86_64-linux-gnu/libpthread.so.0
  #6  0x00007f7e9d3273ab in gegl_buffer_cl_cache_flush2 () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #7  0x00007f7e9d3195a7 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #8  0x00007f7e9d31a612 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #9  0x00007f7e9d31a04b in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #10 0x00007f7e9d3024c0 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #11 0x00007f7e9d2f721d in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #12 0x00007f7e9d2f87b9 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #13 0x00007f7e9d2fa72c in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #14 0x00007f7e9d2fb9c3 in gegl_buffer_copy () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #15 0x00007f7e8c5a6e27 in  () at /usr/lib/x86_64-linux-gnu/gegl-0.4/gegl-core.so
  #16 0x00007f7e9d32fcfe in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #17 0x00007f7e9d2df0f5 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #18 0x00007f7e9d2df3c3 in gegl_parallel_distribute () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #19 0x00007f7e9d2dfb52 in gegl_parallel_distribute_area () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #20 0x00007f7e9d32fca3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #21 0x00007f7e9d334ac7 in gegl_operation_process () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #22 0x00007f7e9d336951 in gegl_graph_process () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #23 0x00007f7e9d335ba5 in gegl_eval_manager_apply () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #24 0x00007f7e9d31ec4a in gegl_node_blit_buffer () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #25 0x000055a40b057004 in  ()
  #26 0x000055a40b057ca0 in gimp_tile_handler_validate_validate ()
  #27 0x000055a40afc7156 in  ()
  #28 0x000055a40afc756e in  ()
  #29 0x000055a40afc75a9 in  ()
  #30 0x00007f7e9bc62285 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #31 0x00007f7e9bc62650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #32 0x00007f7e9bc62962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #33 0x000055a40ac3b470 in app_run ()
  #34 0x000055a40ac3ad3c in main ()

  ```

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Follow ups

[Bug 1857610] Re: i worked with curves then it crash
From: Chris Guiver, 2019-12-26