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Re: [Bug 1906421] Re: Opera froze, incl.the whole system, a couple of times

To: canonical-partner-dev@xxxxxxxxxxxxxxxxxxx
From: "M.W. Rees" <1906421@xxxxxxxxxxxxxxxxxx>
Date: Wed, 02 Dec 2020 12:27:28 -0000
Reply-to: Bug 1906421 <1906421@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Thanks for the information. A pity Opera is not in Ubunt(yet) because
it's become my totally favourite browser after having tried the other
week known browsers.

Regards, 
Mat Rees

Verzonden van mijn HTC

----- Bericht beantwoorden -----
Van: "Tom Reynolds" <1906421@xxxxxxxxxxxxxxxxxx>
Aan: <matje747@xxxxxxxxx>
Onderwerp: [Bug 1906421] Re: Opera froze, incl.the whole system, a couple of times
Datum: di, dec. 1, 2020 18:59

There's no "opera" package in Ubuntu, so filing bugs on the Ubuntu bug
tracker cannot succeed in having these fixed, I'm afraid.

If this is about the Opera web browser, I suggest to look for available
support channels on https://www.opera.com

** Changed in: opera (Ubuntu)
Status: New => Incomplete

-- 
You received this bug notification because you are subscribed to the bug
report.
https://bugs.launchpad.net/bugs/1906421

Title:
Opera froze, incl.the whole system, a couple of times

Status in opera package in Ubuntu:
Incomplete

Bug description:
===================================================================
Info                                                              
===================================================================
PID: 10436 (opera)
UID: 1000 (m12)
GID: 1000 (m12)
Signal: 4 (ILL)
Timestamp: Mon 2020-11-30 22:24:52 CET (18h ago)
Command Line: /usr/lib/x86_64-linux-gnu/opera/opera
Executable: /usr/lib/x86_64-linux-gnu/opera/opera
Control Group: /user.slice/user-1000.slice/session-c4.scope
Unit: session-c4.scope
Slice: user-1000.slice
Session: c4
Owner UID: 1000 (m12)
Boot ID: 81193fdf3d4542d09d69d128e84c7910
Machine ID: b76cc7b1bbdc489e93909d2043031de8
Hostname: Tigger
Storage: /var/lib/systemd/coredump/core.opera.1000.81193fdf3d4542d09d69d128e84c7910.10436.1606771492000000000000.lz4
Message: Process 10436 (opera) of user 1000 dumped core.

Stack trace of thread 10436:
#0  0x0000562c9b5ed25b n/a (opera + 0x5b8a25b)
#1  0x0000562c9bc7712e n/a (opera + 0x621412e)
#2  0x0000562c9bc7701a n/a (opera + 0x621401a)
#3  0x0000562c9a33589d n/a (opera + 0x48d289d)
#4  0x0000562c9a302b1a n/a (opera + 0x489fb1a)
#5  0x0000562c9bc957ca n/a (opera + 0x62327ca)
#6  0x0000562c9a3004f1 n/a (opera + 0x489d4f1)
#7  0x0000562c97626943 ChromeMain (opera + 0x1bc3943)
#8  0x00007f886e0a70b3 __libc_start_main (libc.so.6 + 0x270b3)
#9  0x0000562c973c396a _start (opera + 0x196096a)

Stack trace of thread 10534:
#0  0x00007f886f839376 futex_wait_cancelable (libpthread.so.0 + 0x10376)
#1  0x0000562c9a3cccf3 n/a (opera + 0x4969cf3)
#2  0x0000562c9a3cd545 n/a (opera + 0x496a545)
#3  0x0000562c9a3cd1ff n/a (opera + 0x496a1ff)
#4  0x0000562c9a3a6b54 n/a (opera + 0x4943b54)
#5  0x0000562c9a3a69fd n/a (opera + 0x49439fd)
#6  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#7  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#8  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10505:
#0  0x00007f886f839376 futex_wait_cancelable (libpthread.so.0 + 0x10376)
#1  0x0000562c9a3cccf3 n/a (opera + 0x4969cf3)
#2  0x0000562c9a3cd545 n/a (opera + 0x496a545)
#3  0x0000562c9a3cd1ff n/a (opera + 0x496a1ff)
#4  0x0000562c9a56673a n/a (opera + 0x4b0373a)
#5  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#6  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#7  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10504:
#0  0x00007f886f839376 futex_wait_cancelable (libpthread.so.0 + 0x10376)
#1  0x0000562c9a3cccf3 n/a (opera + 0x4969cf3)
#2  0x0000562c9a3cd545 n/a (opera + 0x496a545)
#3  0x0000562c9a3cd1ff n/a (opera + 0x496a1ff)
#4  0x0000562c9a3a6e27 n/a (opera + 0x4943e27)
#5  0x0000562c9a3a6a2d n/a (opera + 0x4943a2d)
#6  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#7  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#8  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10491:
#0  0x00007f886e195aff __GI___poll (libc.so.6 + 0x115aff)
#1  0x00007f886f6e51ae n/a (libglib-2.0.so.0 + 0x521ae)
#2  0x00007f886f6e52e3 g_main_context_iteration (libglib-2.0.so.0 + 0x522e3)
#3  0x00007f886571699d n/a (libdconfsettings.so + 0xa99d)
#4  0x00007f886f70e931 n/a (libglib-2.0.so.0 + 0x7b931)
#5  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#6  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10518:
#0  0x00007f886f839376 futex_wait_cancelable (libpthread.so.0 + 0x10376)
#1  0x0000562c9a3cccf3 n/a (opera + 0x4969cf3)
#2  0x0000562c9a3cd545 n/a (opera + 0x496a545)
#3  0x0000562c9a3cd1ff n/a (opera + 0x496a1ff)
#4  0x0000562c9a56673a n/a (opera + 0x4b0373a)
#5  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#6  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#7  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10493:
#0  0x00007f886f8397b1 futex_abstimed_wait_cancelable (libpthread.so.0 + 0x107b1)
#1  0x0000562c9a3cce6c n/a (opera + 0x4969e6c)
#2  0x0000562c9a3cd558 n/a (opera + 0x496a558)
#3  0x0000562c9a3a6e32 n/a (opera + 0x4943e32)
#4  0x0000562c9a3a69cd n/a (opera + 0x49439cd)
#5  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#6  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#7  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10456:
#0  0x00007f886e165dff __GI___wait4 (libc.so.6 + 0xe5dff)
#1  0x0000562c9a3cbcdd n/a (opera + 0x4968cdd)
#2  0x0000562c9a3c9483 n/a (opera + 0x4966483)
#3  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#4  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#5  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10488:
#0  0x00007f886e195aff __GI___poll (libc.so.6 + 0x115aff)
#1  0x00007f886f6e51ae n/a (libglib-2.0.so.0 + 0x521ae)
#2  0x00007f886f6e5533 g_main_loop_run (libglib-2.0.so.0 + 0x52533)
#3  0x00007f886f05aeda n/a (libgio-2.0.so.0 + 0x11eeda)
#4  0x00007f886f70e931 n/a (libglib-2.0.so.0 + 0x7b931)
#5  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#6  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10485:
#0  0x00007f886e195aff __GI___poll (libc.so.6 + 0x115aff)
#1  0x00007f886f6e51ae n/a (libglib-2.0.so.0 + 0x521ae)
#2  0x00007f886f6e52e3 g_main_context_iteration (libglib-2.0.so.0 + 0x522e3)
#3  0x00007f886f6e5331 n/a (libglib-2.0.so.0 + 0x52331)
#4  0x00007f886f70e931 n/a (libglib-2.0.so.0 + 0x7b931)
#5  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#6  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10498:
#0  0x00007f886e19812b __GI___select (libc.so.6 + 0x11812b)
#1  0x0000562c9a3d2f77 n/a (opera + 0x496ff77)
#2  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#3  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#4  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10461:
#0  0x00007f886f8397b1 futex_abstimed_wait_cancelable (libpthread.so.0 + 0x107b1)
#1  0x0000562c9a3cce6c n/a (opera + 0x4969e6c)
#2  0x0000562c9a3cd558 n/a (opera + 0x496a558)
#3  0x0000562c9a3a6e32 n/a (opera + 0x4943e32)
#4  0x0000562c9a3a69cd n/a (opera + 0x49439cd)
#5  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#6  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#7  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10490:
#0  0x00007f886f83d36c __libc_read (libpthread.so.0 + 0x1436c)
#1  0x0000562c9944a900 n/a (opera + 0x39e7900)
#2  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#3  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#4  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10442:
#0  0x00007f886e195aff __GI___poll (libc.so.6 + 0x115aff)
#1  0x0000562c9899d732 n/a (opera + 0x2f3a732)
#2  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#3  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#4  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10509:
#0  0x00007f886e1a25ce epoll_wait (libc.so.6 + 0x1225ce)
#1  0x0000562c9a51335d n/a (opera + 0x4ab035d)
#2  0x0000562c9a510d3a n/a (opera + 0x4aadd3a)
#3  0x0000562c9a3df032 n/a (opera + 0x497c032)
#4  0x0000562c9a3951ea n/a (opera + 0x49321ea)
#5  0x0000562c9a36ebbf n/a (opera + 0x490bbbf)
#6  0x0000562c9a3ac607 n/a (opera + 0x4949607)
#7  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#8  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#9  0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)

Stack trace of thread 10467:
#0  0x00007f886f839376 futex_wait_cancelable (libpthread.so.0 + 0x10376)
#1  0x0000562c9a3cccf3 n/a (opera + 0x4969cf3)
#2  0x0000562c9a3cd545 n/a (opera + 0x496a545)
#3  0x0000562c9a3cd1ff n/a (opera + 0x496a1ff)
#4  0x0000562c9a350904 n/a (opera + 0x48ed904)
#5  0x0000562c9a3951ea n/a (opera + 0x49321ea)
#6  0x0000562c9a36ebbf n/a (opera + 0x490bbbf)
#7  0x0000562c9a3ac607 n/a (opera + 0x4949607)
#8  0x0000562c9a3d0a0e n/a (opera + 0x496da0e)
#9  0x00007f886f832609 start_thread (libpthread.so.0 + 0x9609)
#10 0x00007f886e1a2293 __clone (libc.so.6 + 0x122293)
===================================================================
GDB Log                                                           
===================================================================
[New LWP 10436]
[New LWP 10534]
[New LWP 10505]
[New LWP 10504]
[New LWP 10491]
[New LWP 10518]
[New LWP 10493]
[New LWP 10456]
[New LWP 10488]
[New LWP 10485]
[New LWP 10498]
[New LWP 10461]
[New LWP 10490]
[New LWP 10442]
[New LWP 10509]
[New LWP 10467]
Core was generated by `/usr/l'.
Program terminated with signal SIGILL, Illegal instruction.
#0  0x0000562c9b5ed25b in ?? ()
[Current thread is 1 (LWP 10436)]

===================================================================
GDB Backtrace                                                     
===================================================================
[New LWP 10436]
[New LWP 10534]
[New LWP 10505]
[New LWP 10504]
[New LWP 10491]
[New LWP 10518]
[New LWP 10493]
[New LWP 10456]
[New LWP 10488]
[New LWP 10485]
[New LWP 10498]
[New LWP 10461]
[New LWP 10490]
[New LWP 10442]
[New LWP 10509]
[New LWP 10467]
Core was generated by `/usr/l'.
Program terminated with signal SIGILL, Illegal instruction.
#0  0x0000562c9b5ed25b in ?? ()
[Current thread is 1 (LWP 10436)]
#0  0x0000562c9b5ed25b in ?? ()
#1  0x000000000007c8e0 in ?? ()
#2  0x0000000000000001 in ?? ()
#3  0x00007ffcf9787b90 in ?? ()
#4  0x0000562c9bc7712e in ?? ()
#5  0x00003ce14258e1c0 in ?? ()
#6  0x00003ce142263fa0 in ?? ()
#7  0x00007ffcf9787bc8 in ?? ()
#8  0x0000000000000034 in ?? ()
#9  0x00007ffcf9787bb0 in ?? ()
#10 0x0000562c9bc7701a in ?? ()
#11 0x00003ce1428c1750 in ?? ()
#12 0x0000000000000000 in ?? ()

===================================================================
GDB Backtrace (all threads)                                       
===================================================================
[New LWP 10436]
[New LWP 10534]
[New LWP 10505]
[New LWP 10504]
[New LWP 10491]
[New LWP 10518]
[New LWP 10493]
[New LWP 10456]
[New LWP 10488]
[New LWP 10485]
[New LWP 10498]
[New LWP 10461]
[New LWP 10490]
[New LWP 10442]
[New LWP 10509]
[New LWP 10467]
Core was generated by `/usr/l'.
Program terminated with signal SIGILL, Illegal instruction.
#0  0x0000562c9b5ed25b in ?? ()
[Current thread is 1 (LWP 10436)]

Thread 16 (LWP 10467):
#0  0x00007f886f839376 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 15 (LWP 10509):
#0  0x00007f886e1a25ce in ?? ()
No symbol table info available.
#1  0x00003ce142588100 in ?? ()
No symbol table info available.
#2  0x0000003a42356b00 in ?? ()
No symbol table info available.
#3  0x00003ce1422e0300 in ?? ()
No symbol table info available.
#4  0x00005c6300000020 in ?? ()
No symbol table info available.
#5  0x00007f886164a5f0 in ?? ()
No symbol table info available.
#6  0x0000562c9a51335d in ?? ()
No symbol table info available.
#7  0x0000562c9e8e84d8 in ?? ()
No symbol table info available.
#8  0x00003ce142356b00 in ?? ()
No symbol table info available.
#9  0x00003ce142588718 in ?? ()
No symbol table info available.
#10 0x00003ce1425886f8 in ?? ()
No symbol table info available.
#11 0x00003ce142588100 in ?? ()
No symbol table info available.
#12 0x00007f886164a660 in ?? ()
No symbol table info available.
#13 0x00007f886164a6b0 in ?? ()
No symbol table info available.
#14 0x0000562c9a510d3a in ?? ()
No symbol table info available.
#15 0x0000000000000001 in ?? ()
No symbol table info available.
#16 0x0000562c9e8e84d8 in ?? ()
No symbol table info available.
#17 0x00003ce1425a4c40 in ?? ()
No symbol table info available.
#18 0x00003ce1425886f8 in ?? ()
No symbol table info available.
#19 0x0000000042356b00 in ?? ()
No symbol table info available.
#20 0x0000000100000000 in ?? ()
No symbol table info available.
#21 0x0000000000000938 in ?? ()
No symbol table info available.
#22 0x0000000000066351 in ?? ()
No symbol table info available.
#23 0x0000000000000017 in ?? ()
No symbol table info available.
#24 0x000000000009ecd1 in ?? ()
No symbol table info available.
#25 0x0000000000000938 in ?? ()
No symbol table info available.
#26 0x0000000018f3f581 in ?? ()
No symbol table info available.
#27 0x000000008c9aaffb in ?? ()
No symbol table info available.
#28 0x00003ce1425a0210 in ?? ()
No symbol table info available.
#29 0x000000008c9aaffb in ?? ()
No symbol table info available.
#30 0x00000000017f51dd in v8_Default_embedded_blob_metadata_size_ ()
No symbol table info available.
#31 0x00003ce142590b08 in ?? ()
No symbol table info available.
#32 0x00003ce142356b00 in ?? ()
No symbol table info available.
#33 0x00007f886164a710 in ?? ()
No symbol table info available.
#34 0x0000562c9a3df032 in ?? ()
No symbol table info available.
#35 0x0000000000000019 in ?? ()
No symbol table info available.
#36 0x000000000001d99d in ?? ()
No symbol table info available.
#37 0x0000562c9e8d7390 in ?? ()
No symbol table info available.
#38 0x00000000017f51dd in v8_Default_embedded_blob_metadata_size_ ()
No symbol table info available.
#39 0x00017f886164a710 in ?? ()
No symbol table info available.
#40 0x00003ce142590b00 in ?? ()
No symbol table info available.
#41 0x7fffffffffffffff in ?? ()
No symbol table info available.
#42 0x00003ce142598800 in ?? ()
No symbol table info available.
#43 0x0000000000000001 in ?? ()
No symbol table info available.
#44 0x7fffffffffffffff in ?? ()
No symbol table info available.
#45 0x00007f886164a740 in ?? ()
No symbol table info available.
#46 0x0000562c9a3951ea in ?? ()
No symbol table info available.
#47 0x0000000000000001 in ?? ()
No symbol table info available.
#48 0x00007f886164a820 in ?? ()
No symbol table info available.
#49 0x00007f886164a780 in ?? ()
No symbol table info available.
#50 0x00003ce142590b10 in ?? ()
No symbol table info available.
#51 0x00007f886164a800 in ?? ()
No symbol table info available.
#52 0x0000562c9a36ebbf in ?? ()
No symbol table info available.
#53 0x00007f886164a818 in ?? ()
No symbol table info available.
#54 0x0000562c9e3b3670 in ?? ()
No symbol table info available.
#55 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 14 (LWP 10442):
#0  0x00007f886e195aff in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 13 (LWP 10490):
#0  0x00007f886f83d36c in ?? ()
No symbol table info available.
#1  0x00007f88657696e0 in ?? ()
No symbol table info available.
#2  0x0000562c00000025 in ?? ()
No symbol table info available.
#3  0x00007f88657696fc in ?? ()
No symbol table info available.
#4  0x0000000000000004 in ?? ()
No symbol table info available.
#5  0x00007f8865769870 in ?? ()
No symbol table info available.
#6  0x0000562c9944a900 in ?? ()
No symbol table info available.
#7  0xaaaaaaaaaaaaaa00 in ?? ()
No symbol table info available.
#8  0xaaaaaaaa00000040 in ?? ()
No symbol table info available.
#9  0x6f64747568537243 in ?? ()
No symbol table info available.
#10 0x7463657465446e77 in ?? ()
No symbol table info available.
#11 0x120000000000726f in ?? ()
No symbol table info available.
#12 0x0000562c9e3b2f3c in ?? ()
No symbol table info available.
#13 0x0000562c9a3d8e90 in ?? ()
No symbol table info available.
#14 0x0000000000000001 in ?? ()
No symbol table info available.
#15 0x00007f88657697a0 in ?? ()
No symbol table info available.
#16 0x00003ce1426629c0 in ?? ()
No symbol table info available.
#17 0x00000000000028fa in ?? ()
No symbol table info available.
#18 0x0000562c9e8d7390 in ?? ()
No symbol table info available.
#19 0x0000000000000001 in ?? ()
No symbol table info available.
#20 0x00003ce142175980 in ?? ()
No symbol table info available.
#21 0x00003ce1421759f0 in ?? ()
No symbol table info available.
#22 0x0000000000000060 in ?? ()
No symbol table info available.
#23 0x00007f88657697d0 in ?? ()
No symbol table info available.
#24 0x0000562c976f6e57 in ?? ()
No symbol table info available.
#25 0x00003ce142305c80 in ?? ()
No symbol table info available.
#26 0x0000562c9e3b3670 in ?? ()
No symbol table info available.
#27 0x00003ce142815960 in ?? ()
No symbol table info available.
#28 0x00003ce142815960 in ?? ()
No symbol table info available.
#29 0x00003ce142815990 in ?? ()
No symbol table info available.
#30 0x0000562c9e8d7390 in ?? ()
No symbol table info available.
#31 0x00003ce1422947c0 in ?? ()
No symbol table info available.
#32 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 12 (LWP 10461):
#0  0x00007f886f8397b1 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 11 (LWP 10498):
#0  0x00007f886e19812b in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 10 (LWP 10485):
#0  0x00007f886e195aff in ?? ()
No symbol table info available.
#1  0x00003ce1425202d0 in ?? ()
No symbol table info available.
#2  0x00003ce1425202d0 in ?? ()
No symbol table info available.
#3  0x0000000000000001 in ?? ()
No symbol table info available.
#4  0xffffffff00000001 in ?? ()
No symbol table info available.
#5  0x00003ce1424f2210 in ?? ()
No symbol table info available.
#6  0x00007f886f6e51ae in ?? ()
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 9 (LWP 10488):
#0  0x00007f886e195aff in ?? ()
No symbol table info available.
#1  0x00003ce142524a50 in ?? ()
No symbol table info available.
#2  0x00003ce142524a50 in ?? ()
No symbol table info available.
#3  0x0000000000000002 in ?? ()
No symbol table info available.
#4  0xffffffff00000001 in ?? ()
No symbol table info available.
#5  0x00003ce1424f20b0 in ?? ()
No symbol table info available.
#6  0x00007f886f6e51ae in ?? ()
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 8 (LWP 10456):
#0  0x00007f886e165dff in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 7 (LWP 10493):
#0  0x00007f886f8397b1 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 6 (LWP 10518):
#0  0x00007f886f839376 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 5 (LWP 10491):
#0  0x00007f886e195aff in ?? ()
No symbol table info available.
#1  0x00003ce142818ba0 in ?? ()
No symbol table info available.
#2  0x00003ce142818ba0 in ?? ()
No symbol table info available.
#3  0x0000000000000001 in ?? ()
No symbol table info available.
#4  0xffffffff00000001 in ?? ()
No symbol table info available.
#5  0x00003ce1427ff4d0 in ?? ()
No symbol table info available.
#6  0x00007f886f6e51ae in ?? ()
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 4 (LWP 10504):
#0  0x00007f886f839376 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 3 (LWP 10505):
#0  0x00007f886f839376 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 2 (LWP 10534):
#0  0x00007f886f839376 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 1 (LWP 10436):
#0  0x0000562c9b5ed25b in ?? ()
No symbol table info available.
#1  0x000000000007c8e0 in ?? ()
No symbol table info available.
#2  0x0000000000000001 in ?? ()
No symbol table info available.
#3  0x00007ffcf9787b90 in ?? ()
No symbol table info available.
#4  0x0000562c9bc7712e in ?? ()
No symbol table info available.
#5  0x00003ce14258e1c0 in ?? ()
No symbol table info available.
#6  0x00003ce142263fa0 in ?? ()
No symbol table info available.
#7  0x00007ffcf9787bc8 in ?? ()
No symbol table info available.
#8  0x0000000000000034 in ?? ()
No symbol table info available.
#9  0x00007ffcf9787bb0 in ?? ()
No symbol table info available.
#10 0x0000562c9bc7701a in ?? ()
No symbol table info available.
#11 0x00003ce1428c1750 in ?? ()
No symbol table info available.
#12 0x0000000000000000 in ?? ()
No symbol table info available.
#0  0x0000562c9b5ed25b in ?? ()
#1  0x000000000007c8e0 in ?? ()
#2  0x0000000000000001 in ?? ()
#3  0x00007ffcf9787b90 in ?? ()
#4  0x0000562c9bc7712e in ?? ()
#5  0x00003ce14258e1c0 in ?? ()
#6  0x00003ce142263fa0 in ?? ()
#7  0x00007ffcf9787bc8 in ?? ()
#8  0x0000000000000034 in ?? ()
#9  0x00007ffcf9787bb0 in ?? ()
#10 0x0000562c9bc7701a in ?? ()
#11 0x00003ce1428c1750 in ?? ()
#12 0x0000000000000000 in ?? ()

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https://bugs.launchpad.net/bugs/1906421

Title:
  Opera froze, incl.the whole system, a couple of times

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