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[Bug 1892329] [NEW] Trying to generate animation and GIMP crashed

 

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: Segmentation fault

Stack trace:
```

# Stack traces obtained from PID 9473 - Thread 9475 #

[New LWP 9475]
[New LWP 9476]
[New LWP 9477]
[New LWP 9478]
[New LWP 9479]
[New LWP 9480]
[New LWP 9481]
[New LWP 9482]
[New LWP 9483]
[New LWP 9484]
[New LWP 9485]
[New LWP 9486]
[New LWP 9487]
[New LWP 9488]
[New LWP 9489]
[New LWP 9518]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  Id   Target Id         Frame 
* 1    Thread 0x7fa8acdc7e00 (LWP 9473) "gimp-2.10" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  2    Thread 0x7fa89ea0c700 (LWP 9475) "worker" 0x00007fa8a7f93394 in __libc_read (fd=27, buf=0x7fa89ea0ae90, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
  3    Thread 0x7fa89e20b700 (LWP 9476) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  4    Thread 0x7fa89da0a700 (LWP 9477) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  5    Thread 0x7fa897fff700 (LWP 9478) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  6    Thread 0x7fa89d209700 (LWP 9479) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  7    Thread 0x7fa8977fe700 (LWP 9480) "gmain" 0x00007fa8a7ca5cf9 in __GI___poll (fds=0x55ed7b909760, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  8    Thread 0x7fa896ffd700 (LWP 9481) "gdbus" 0x00007fa8a7ca5cf9 in __GI___poll (fds=0x55ed7b91d600, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  9    Thread 0x7fa86d26d700 (LWP 9482) "gimp-2.10" 0x00007fa8a7ca5cf9 in __GI___poll (fds=0x55ed7bf39f50, nfds=5, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
  10   Thread 0x7fa86ca6c700 (LWP 9483) "gimp-2.10" 0x00007fa8a7f8ff85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fa86ca6b770, expected=0, futex_word=0x55ed7badde28) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  11   Thread 0x7fa867fff700 (LWP 9484) "gimp-2.10" 0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba70cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  12   Thread 0x7fa8677fe700 (LWP 9485) "gimp-2.10" 0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba70cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  13   Thread 0x7fa866ffd700 (LWP 9486) "gimp-2.10" 0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba70cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  14   Thread 0x7fa8667fc700 (LWP 9487) "gimp-2.10" 0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba70cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  15   Thread 0x7fa865ffb700 (LWP 9488) "gimp-2.10" 0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba09d58) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  16   Thread 0x7fa862631700 (LWP 9489) "async" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  17   Thread 0x7fa860d1a700 (LWP 9518) "swap writer" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38

Thread 17 (Thread 0x7fa860d1a700 (LWP 9518)):
#0  0x00007fa8a7cac959 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fa8a87d575f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8a9e43dad in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8a7f896db in start_thread (arg=0x7fa860d1a700) at pthread_create.c:463
        pd = 0x7fa860d1a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361155585792, -6282184298109167379, 140361155582208, 0, 94478530317008, 140729113022992, 6305588174905841901, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fa862631700 (LWP 9489)):
#0  0x00007fa8a7cac959 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fa8a87d575f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055ed7a1a436c in  ()
#3  0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8a7f896db in start_thread (arg=0x7fa862631700) at pthread_create.c:463
        pd = 0x7fa862631700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361181894400, -6282184298109167379, 140361181890816, 0, 94478469035408, 140729113030272, 6305591898105616621, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fa865ffb700 (LWP 9488)):
#0  0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba09d58) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007fa8a7f926e6 in do_futex_wait (sem=sem@entry=0x55ed7ba09d58, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007fa8a7f927d8 in __new_sem_wait_slow (sem=0x55ed7ba09d58, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7fa8a7f926a0 <__sem_wait_cleanup>, __arg = 0x55ed7ba09d58, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 0
#3  0x00007fa86e6dcb37 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007fa86e5a4676 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007fa86e6deb68 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007fa8a7f896db in start_thread (arg=0x7fa865ffb700) at pthread_create.c:463
        pd = 0x7fa865ffb700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361242490624, -6282184298109167379, 140361242487040, 0, 94478475175472, 140729113026896, 6305595096782510317, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fa8667fc700 (LWP 9487)):
#0  0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba70cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007fa8a7f926e6 in do_futex_wait (sem=sem@entry=0x55ed7ba70cb8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007fa8a7f927d8 in __new_sem_wait_slow (sem=0x55ed7ba70cb8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7fa8a7f926a0 <__sem_wait_cleanup>, __arg = 0x55ed7ba70cb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 12884901888
#3  0x00007fa86e6dcb37 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007fa86e5a4676 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007fa86e6deb68 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007fa8a7f896db in start_thread (arg=0x7fa8667fc700) at pthread_create.c:463
        pd = 0x7fa8667fc700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361250883328, -6282184298109167379, 140361250879744, 0, 94478475175312, 140729113026896, 6305600594877520109, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fa866ffd700 (LWP 9486)):
#0  0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba70cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007fa8a7f926e6 in do_futex_wait (sem=sem@entry=0x55ed7ba70cb8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007fa8a7f927d8 in __new_sem_wait_slow (sem=0x55ed7ba70cb8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7fa8a7f926a0 <__sem_wait_cleanup>, __arg = 0x55ed7ba70cb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 4294967296
#3  0x00007fa86e6dcb37 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007fa86e5a4676 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007fa86e6deb68 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007fa8a7f896db in start_thread (arg=0x7fa866ffd700) at pthread_create.c:463
        pd = 0x7fa866ffd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361259276032, -6282184298109167379, 140361259272448, 0, 94478475174784, 140729113026896, 6305601697073502445, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fa8677fe700 (LWP 9485)):
#0  0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba70cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007fa8a7f926e6 in do_futex_wait (sem=sem@entry=0x55ed7ba70cb8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007fa8a7f927d8 in __new_sem_wait_slow (sem=0x55ed7ba70cb8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7fa8a7f926a0 <__sem_wait_cleanup>, __arg = 0x55ed7ba70cb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 8589934592
#3  0x00007fa86e6dcb37 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007fa86e5a4676 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007fa86e6deb68 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007fa8a7f896db in start_thread (arg=0x7fa8677fe700) at pthread_create.c:463
        pd = 0x7fa8677fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361267668736, -6282184298109167379, 140361267665152, 0, 94478475174256, 140729113026896, 6305598399075490029, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fa867fff700 (LWP 9484)):
#0  0x00007fa8a7f926e6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x55ed7ba70cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  0x00007fa8a7f926e6 in do_futex_wait (sem=sem@entry=0x55ed7ba70cb8, abstime=0x0) at sem_waitcommon.c:111
#2  0x00007fa8a7f927d8 in __new_sem_wait_slow (sem=0x55ed7ba70cb8, abstime=0x0) at sem_waitcommon.c:181
        _buffer = {__routine = 0x7fa8a7f926a0 <__sem_wait_cleanup>, __arg = 0x55ed7ba70cb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 0
#3  0x00007fa86e6dcb37 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007fa86e5a4676 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007fa86e6deb68 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007fa8a7f896db in start_thread (arg=0x7fa867fff700) at pthread_create.c:463
        pd = 0x7fa867fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361276061440, -6282184298109167379, 140361276057856, 0, 94478475146336, 140729113026896, 6305599496976505069, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fa86ca6c700 (LWP 9483)):
#0  0x00007fa8a7f8ff85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fa86ca6b770, expected=0, futex_word=0x55ed7badde28) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
        spin = 0
        buffer = {__routine = 0x7fa8a7f8f690 <__condvar_cleanup_waiting>, __arg = 0x7fa86ca6b700, __canceltype = 2076297800, __prev = 0x0}
        cbuffer = {wseq = 124, cond = 0x55ed7badde00, mutex = 0x55ed7baddda8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 62
#1  0x00007fa8a7f8ff85 in __pthread_cond_wait_common (abstime=0x7fa86ca6b770, mutex=0x55ed7baddda8, cond=0x55ed7badde00) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7fa8a7f8f690 <__condvar_cleanup_waiting>, __arg = 0x7fa86ca6b700, __canceltype = 2076297800, __prev = 0x0}
        cbuffer = {wseq = 124, cond = 0x55ed7badde00, mutex = 0x55ed7baddda8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 62
#2  0x00007fa8a7f8ff85 in __pthread_cond_timedwait (cond=0x55ed7badde00, mutex=0x55ed7baddda8, abstime=0x7fa86ca6b770) at pthread_cond_wait.c:667
#3  0x00007fa86e6df8e7 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007fa86e67e1c7 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#5  0x00007fa86e6deb68 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#6  0x00007fa8a7f896db in start_thread (arg=0x7fa86ca6c700) at pthread_create.c:463
        pd = 0x7fa86ca6c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361354102528, -6282184298109167379, 140361354098944, 0, 94478472168016, 140729113026032, 6305580331221817581, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fa86d26d700 (LWP 9482)):
#0  0x00007fa8a7ca5cf9 in __GI___poll (fds=0x55ed7bf39f50, nfds=5, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fa86e6dc4e3 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#2  0x00007fa86e79c25a in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#3  0x00007fa86e6deb68 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1
#4  0x00007fa8a7f896db in start_thread (arg=0x7fa86d26d700) at pthread_create.c:463
        pd = 0x7fa86d26d700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140361362495232, -6282184298109167379, 140361362491648, 0, 94478470497248, 140729113025952, 6305577035371288813, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fa896ffd700 (LWP 9481)):
#0  0x00007fa8a7ca5cf9 in __GI___poll (fds=0x55ed7b91d600, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fa8a878f5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8a878f962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa8a9918276 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa8a7f896db in start_thread (arg=0x7fa896ffd700) at pthread_create.c:463
        pd = 0x7fa896ffd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140362064582400, -6282184298109167379, 140362064578816, 0, 94478468250160, 140729113030352, 6305073931492169965, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fa8977fe700 (LWP 9480)):
#0  0x00007fa8a7ca5cf9 in __GI___poll (fds=0x55ed7b909760, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fa8a878f5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8a878f6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa8a878f721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa8a7f896db in start_thread (arg=0x7fa8977fe700) at pthread_create.c:463
        pd = 0x7fa8977fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140362072975104, -6282184298109167379, 140362072971520, 0, 94478468250000, 140729113029968, 6305070633494157549, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fa89d209700 (LWP 9479)):
#0  0x00007fa8a7cac959 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fa8a87d575f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8a9e0bfc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8a7f896db in start_thread (arg=0x7fa89d209700) at pthread_create.c:463
        pd = 0x7fa89d209700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140362167392000, -6282184298109167379, 140362167388416, 0, 94478468249920, 140729113030160, 6305049284822341869, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa897fff700 (LWP 9478)):
#0  0x00007fa8a7cac959 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fa8a87d575f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8a9e0bfc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8a7f896db in start_thread (arg=0x7fa897fff700) at pthread_create.c:463
        pd = 0x7fa897fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140362081367808, -6282184298109167379, 140362081364224, 0, 94478468249840, 140729113030160, 6305071731395172589, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fa89da0a700 (LWP 9477)):
#0  0x00007fa8a7cac959 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fa8a87d575f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8a9e0bfc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8a7f896db in start_thread (arg=0x7fa89da0a700) at pthread_create.c:463
        pd = 0x7fa89da0a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140362175784704, -6282184298109167379, 140362175781120, 0, 94478468249760, 140729113030160, 6305050384870840557, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa89e20b700 (LWP 9476)):
#0  0x00007fa8a7cac959 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fa8a87d575f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8a9e0bfc3 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8a7f896db in start_thread (arg=0x7fa89e20b700) at pthread_create.c:463
        pd = 0x7fa89e20b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140362184177408, -6282184298109167379, 140362184173824, 0, 94478468249680, 140729113030160, 6305055880818366701, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa89ea0c700 (LWP 9475)):
#0  0x00007fa8a7f93394 in __libc_read (fd=27, buf=0x7fa89ea0ae90, 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 = 27
        buf = 0x7fa89ea0ae90
#1  0x00007fa8ab404da0 in gimp_stack_trace_print () at /usr/lib/libgimpbase-2.0.so.0
#2  0x000055ed79ecfab4 in  ()
#3  0x000055ed79ed00b8 in  ()
#4  0x000055ed79ed07c7 in  ()
#5  0x00007fa8a7f948a0 in <signal handler called> () at /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fa8a9e546f3 in gegl_buffer_cl_cache_flush () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#7  0x00007fa8a9e3ee75 in gegl_sampler_get () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#8  0x00007fa895498dba in  () at /usr/lib/x86_64-linux-gnu/gegl-0.4/gegl-common.so
#9  0x00007fa8a9e5b6f2 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#10 0x00007fa8a9e0c0f5 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#11 0x00007fa8a9e0bfeb in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#12 0x00007fa8a87b7175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007fa8a7f896db in start_thread (arg=0x7fa89ea0c700) at pthread_create.c:463
        pd = 0x7fa89ea0c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140362192570112, -6282184298109167379, 140362192566528, 0, 94478468249600, 140729113030160, 6305056980866865389, 6305177310210201837}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#14 0x00007fa8a7cb2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa8acdc7e00 (LWP 9473)):
#0  0x00007fa8a7cac959 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fa8a87d575f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8a9e0c417 in gegl_parallel_distribute () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007fa8a9e0cb52 in gegl_parallel_distribute_area () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#4  0x00007fa8a9e5b693 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#5  0x00007fa8a9e61ac7 in gegl_operation_process () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#6  0x00007fa8a9e63951 in gegl_graph_process () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#7  0x00007fa8a9e62ba5 in gegl_eval_manager_apply () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#8  0x00007fa8a9e4bc4a in gegl_node_blit_buffer () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#9  0x000055ed7a2eb004 in  ()
#10 0x000055ed7a2ebca0 in gimp_tile_handler_validate_validate ()
#11 0x000055ed7a25b156 in  ()
#12 0x000055ed7a25b56e in  ()
#13 0x000055ed7a25b5a9 in  ()
#14 0x00007fa8a878f285 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007fa8a878f650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007fa8a878f962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x000055ed79ecf470 in app_run ()
#18 0x000055ed79eced3c in main ()

```

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

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https://bugs.launchpad.net/bugs/1892329

Title:
  Trying to generate animation and GIMP crashed

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