Bug 428519 - Dolphin crashes when being resized on wayland
Summary: Dolphin crashes when being resized on wayland
Status: RESOLVED UPSTREAM
Alias: None
Product: dolphin
Classification: Applications
Component: general (show other bugs)
Version: 20.08.2
Platform: Neon Linux
: NOR crash
Target Milestone: ---
Assignee: Dolphin Bug Assignee
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2020-10-31 16:35 UTC by Janne Mareike Koschinski
Modified: 2021-01-25 22:27 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:

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New crash information added by DrKonqi (19.72 KB, text/plain)
2020-10-31 16:38 UTC, Janne Mareike Koschinski 		Details
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Description Janne Mareike Koschinski 2020-10-31 16:35:59 UTC 
Application: dolphin (20.08.2)

Qt Version: 5.15.0
Frameworks Version: 5.75.0
Operating System: Linux 5.4.0-52-generic x86_64
Windowing system: Wayland
Distribution: KDE neon User Edition 5.20

-- Information about the crash:
- What I was doing when the application crashed:

1. I opened dolphin under Wayland

- Environment:

Operating System: KDE neon 5.20
KDE Plasma Version: 5.20.2
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.0
Kernel Version: 5.4.0-52-generic
Graphics Processor: AMD Radeon ™ RX 480 Graphics

The crash can be reproduced sometimes.

-- Backtrace:
Application: Dolphin (dolphin), signal: Aborted

[New LWP 41898]
[New LWP 41926]
[New LWP 41927]
[New LWP 41928]
[New LWP 41929]
[New LWP 41930]
[New LWP 41931]
[New LWP 41932]
[New LWP 41933]
[New LWP 41934]
[New LWP 41935]
[New LWP 41936]
[New LWP 41937]
[New LWP 41938]
[New LWP 41939]
[New LWP 41940]
[New LWP 42053]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f9b61264aff in __GI___poll (fds=0x7ffd7544f0a8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f9b5a460dc0 (LWP 41885))]

Thread 18 (Thread 0x7f9b19fb9700 (LWP 42053)):
#0  0x00007f9b61264aff in __GI___poll (fds=0x7f9b08004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9b5cd6c1ae in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9b5cd6c2e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b5efd8eab in QEventDispatcherGlib::processEvents (this=0x7f9b08000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9b5ef7d1bb in QEventLoop::exec (this=this@entry=0x7f9b19fb8ca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f9b5ed9b082 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f9b5ed9c20c in QThreadPrivate::start (arg=0x561ae2b60ee0) at thread/qthread_unix.cpp:342
#7  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f9b1b7fe700 (LWP 41940)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae28125f8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae28125a8, cond=0x561ae28125d0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae28125d0, mutex=0x561ae28125a8) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f9b1bfff700 (LWP 41939)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae28125f8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae28125a8, cond=0x561ae28125d0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae28125d0, mutex=0x561ae28125a8) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f9b34ff9700 (LWP 41938)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae28125f8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae28125a8, cond=0x561ae28125d0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae28125d0, mutex=0x561ae28125a8) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f9b357fa700 (LWP 41937)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae28125f8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae28125a8, cond=0x561ae28125d0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae28125d0, mutex=0x561ae28125a8) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f9b35ffb700 (LWP 41936)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae2811ef0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae2811ea0, cond=0x561ae2811ec8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae2811ec8, mutex=0x561ae2811ea0) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f9b367fc700 (LWP 41935)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae2811ef0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae2811ea0, cond=0x561ae2811ec8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae2811ec8, mutex=0x561ae2811ea0) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f9b36ffd700 (LWP 41934)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae2811ef0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae2811ea0, cond=0x561ae2811ec8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae2811ec8, mutex=0x561ae2811ea0) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f9b377fe700 (LWP 41933)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae2811ef0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae2811ea0, cond=0x561ae2811ec8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae2811ec8, mutex=0x561ae2811ea0) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f9b37fff700 (LWP 41932)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae2811ef0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae2811ea0, cond=0x561ae2811ec8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae2811ec8, mutex=0x561ae2811ea0) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f9b4c87d700 (LWP 41931)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae2811ef0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae2811ea0, cond=0x561ae2811ec8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae2811ec8, mutex=0x561ae2811ea0) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9b4d07e700 (LWP 41930)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae27c7578) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae27c7528, cond=0x561ae27c7550) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae27c7550, mutex=0x561ae27c7528) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f9b4d87f700 (LWP 41929)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae27c7578) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae27c7528, cond=0x561ae27c7550) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae27c7550, mutex=0x561ae27c7528) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f9b4e080700 (LWP 41928)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae27c7578) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae27c7528, cond=0x561ae27c7550) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae27c7550, mutex=0x561ae27c7528) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f9b4e881700 (LWP 41927)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae27c7578) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae27c7528, cond=0x561ae27c7550) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae27c7550, mutex=0x561ae27c7528) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f9b4f082700 (LWP 41926)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x561ae280e908) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561ae280e8b8, cond=0x561ae280e8e0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x561ae280e8e0, mutex=0x561ae280e8b8) at pthread_cond_wait.c:638
#3  0x00007f9b52feaa2b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f9b52fea75b in ?? () from /opt/amdgpu/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f9b596aa700 (LWP 41898)):
#0  __GI___libc_read (nbytes=16, buf=0x7f9b596a9a60, fd=5) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=5, buf=0x7f9b596a9a60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9b5cdb489f in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b5cd6bcfe in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9b5cd6c152 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9b5cd6c2e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9b5efd8eab in QEventDispatcherGlib::processEvents (this=0x7f9b54000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f9b5ef7d1bb in QEventLoop::exec (this=this@entry=0x7f9b596a9c70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f9b5ed9b082 in QThread::exec (this=this@entry=0x7f9b5f30ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f9b5f287f2b in QDBusConnectionManager::run (this=0x7f9b5f30ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#10 0x00007f9b5ed9c20c in QThreadPrivate::start (arg=0x7f9b5f30ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:342
#11 0x00007f9b5d726609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f9b61271293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9b5a460dc0 (LWP 41885)):
[KCrash Handler]
#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#5  0x00007f9b61174859 in __GI_abort () at abort.c:79
#6  0x00007f9b5ed60c39 in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1914
#7  QMessageLogger::fatal (this=this@entry=0x7ffd7544fcd0, msg=msg@entry=0x7f9b59e200b8 "The Wayland connection broke. Did the Wayland compositor die?") at global/qlogging.cpp:893
#8  0x00007f9b59d64d15 in QtWaylandClient::QWaylandDisplay::checkError (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlogging.h:90
#9  QtWaylandClient::QWaylandDisplay::checkError (this=<optimized out>) at qwaylanddisplay.cpp:204
#10 0x00007f9b59d7549e in QtWaylandClient::QWaylandDisplay::flushRequests (this=0x561ae2579ab0) at qwaylanddisplay.cpp:222
#11 0x00007f9b5efb55e0 in doActivate<false> (sender=0x561ae25bca00, signal_index=4, argv=0x7ffd7544fdb0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#12 0x00007f9b5efae977 in QMetaObject::activate (sender=sender@entry=0x561ae25bca00, m=m@entry=0x7f9b5f2651e0 <QAbstractEventDispatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at kernel/qobject.cpp:3946
#13 0x00007f9b5ef7b287 in QAbstractEventDispatcher::awake (this=this@entry=0x561ae25bca00) at .moc/moc_qabstracteventdispatcher.cpp:149
#14 0x00007f9b5efd8ecc in QEventDispatcherGlib::processEvents (this=0x561ae25bca00, flags=...) at kernel/qeventdispatcher_glib.cpp:430
#15 0x00007f9b5ef7d1bb in QEventLoop::exec (this=this@entry=0x7ffd7544fed0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#16 0x00007f9b5ef85354 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#17 0x00007f9b6139024f in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#18 0x00007f9b611760b3 in __libc_start_main (main=0x561ae1911060, argc=1, argv=0x7ffd754501a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd75450198) at ../csu/libc-start.c:308
#19 0x0000561ae191109e in _start ()
[Inferior 1 (process 41885) detached]

Possible duplicates by query: bug 428384, bug 428374, bug 427665, bug 427537, bug 427535.

Reported using DrKonqi
Comment 1 Janne Mareike Koschinski 2020-10-31 16:38:20 UTC 
Created attachment 132920 [details]
New crash information added by DrKonqi

dolphin (20.08.2) using Qt 5.15.0

- What I was doing when the application crashed:

Resizing Dolphin
Dolphin could not be resized, it was stuck

- Environment:

Operating System: KDE neon 5.20
KDE Plasma Version: 5.20.2
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.0
Kernel Version: 5.4.0-52-generic
Graphics Processor: AMD Radeon ™ RX 480 Graphics

-- Backtrace (Reduced):
#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#5  0x00007f6636171859 in __GI_abort () at abort.c:79
#6  0x00007f6633d5dc39 in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1914
#7  QMessageLogger::fatal (this=this@entry=0x7ffcbe31a520, msg=msg@entry=0x7f662ee1d0b8 "The Wayland connection broke. Did the Wayland compositor die?") at global/qlogging.cpp:893
#8  0x00007f662ed61d15 in QtWaylandClient::QWaylandDisplay::checkError (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlogging.h:90
Comment 2 Nate Graham 2021-01-13 18:44:57 UTC 
#6  QMessageLogger::fatal (this=this@entry=0x7fffd70c5ba0, msg=msg@entry=0x7ff994ac00b8 "The Wayland connection broke. Did the Wayland compositor die?") at global/qlogging.cpp:893

This means that the compositor crashed. Due to a Qt issue, when this happens, the app using it will crash too. KDE developers submitted a fix, but sadly it was not merged. See https://codereview.qt-project.org/c/qt/qtwayland/+/308984.

Until we get better handling of this in Qt, the best we can do is debug why the compositor crashed in the first place. So can you please get a backtrace of the crash in kwin_wayland and then file a new bug report with it on kwin | wayland-generic? Thanks!

You may be able to use the `coredumpctl` utility to retrieve the backtrace. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl
Comment 3 Janne Mareike Koschinski 2021-01-25 17:50:38 UTC 
(In reply to Nate Graham from comment #2)
> #6  QMessageLogger::fatal (this=this@entry=0x7fffd70c5ba0,
> msg=msg@entry=0x7ff994ac00b8 "The Wayland connection broke. Did the Wayland
> compositor die?") at global/qlogging.cpp:893
> 
> This means that the compositor crashed. Due to a Qt issue, when this
> happens, the app using it will crash too. KDE developers submitted a fix,
> but sadly it was not merged. See
> https://codereview.qt-project.org/c/qt/qtwayland/+/308984.

But the compositor didn’t crash, it stayed running, and other apps continued working?

> Until we get better handling of this in Qt, the best we can do is debug why
> the compositor crashed in the first place. So can you please get a backtrace
> of the crash in kwin_wayland and then file a new bug report with it on kwin
> | wayland-generic? Thanks!

I did encounter other crashes, and for every kwin_wayland crash I’ve found, I’ve filed a report, but as said above, kwin_wayland did not crash in this case. The session stayed open just fine.

> You may be able to use the `coredumpctl` utility to retrieve the backtrace.
> See
> https://community.kde.org/Guidelines_and_HOWTOs/Debugging/
> How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl
Comment 4 Nate Graham 2021-01-25 22:27:52 UTC 
Yes, we have done work recently to keep the session itself alive when the compositor crashes, so I'm happy it worked! :) Now it restarts itself when it crashes--but unfortunately apps do not, which is why this sometimes happens.