https://bugs.kde.org/show_bug.cgi?id=485632
Bug ID: 485632
Summary: Plasmashell Wayland KVM Issue
Classification: Plasma
Product: plasmashell
Version: 6.0.3
Platform: Arch Linux
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: generic-crash
Assignee: plasma-b...@kde.org
Reporter: jc40...@protonmail.com
Target Milestone: 1.0
Application: plasmashell (6.0.3)
Qt Version: 6.7.0
Frameworks Version: 6.1.0
Operating System: Linux 6.8.5-zen1-1-zen x86_64
Windowing System: Wayland
Distribution: "Arch Linux"
DrKonqi: 6.0.3 [CoredumpBackend]
-- Information about the crash:
I use a KVM. Plasmashell doesn't seem to detect the display when I press the
button to change to the Linux, unless I switch to another TTY (Ctrl + Alt + F2)
and then switch back (Ctrl + Alt + F1). This time Plasmashell crashed when I
switched back to the Linux PC.
The crash can be reproduced sometimes.
-- Backtrace:
Application: plasmashell (plasmashell), signal: Segmentation fault
Content of s_kcrashErrorMessage: std::unique_ptr<char []> = {get() = <optimized
out>}
Downloading separate debug info for /usr/bin/plasmashell...
[New LWP 16241]
[New LWP 16245]
[New LWP 16246]
[New LWP 16244]
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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/bin/plasmashell --no-respawn'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
Downloading source file /usr/src/debug/glibc/glibc/nptl/pthread_kill.c...
44 return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO
(ret) : 0;
[Current thread is 1 (Thread 0x72224a8019c0 (LWP 16241))]
Cannot QML trace cores :(
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[Current thread is 1 (Thread 0x72224a8019c0 (LWP 16241))]
Thread 4 (Thread 0x7222454006c0 (LWP 16244)):
#0 0x000072224f1190bf in __GI___poll (fds=0x5e4d65644d50, nfds=3, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x000072224e419306 in g_main_context_poll_unlocked (priority=2147483647,
n_fds=3, fds=0x5e4d65644d50, timeout=<optimized out>, context=0x722240000c80)
at ../glib/glib/gmain.c:4521
#2 g_main_context_iterate_unlocked.isra.0
(context=context@entry=0x722240000c80, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4212
#3 0x000072224e3b9712 in g_main_context_iteration (context=0x722240000c80,
may_block=1) at ../glib/glib/gmain.c:4282
#4 0x000072224f983df4 in QEventDispatcherGlib::processEvents
(this=0x722240000b70, flags=...) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qeventdispatcher_glib.cpp:394
#5 0x000072224f745c7e in QEventLoop::processEvents (flags=...,
this=0x7222453ffb30) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qeventloop.cpp:100
#6 QEventLoop::exec (this=0x7222453ffb30, flags=...) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qeventloop.cpp:182
#7 0x000072224f82cbef in QThread::exec (this=this@entry=0x7222506cab20
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/global/qflags.h:74
#8 0x000072225064113f in QDBusConnectionManager::run (this=0x7222506cab20
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/dbus/qdbusconnectionmanager.cpp:144
#9 0x000072224f8adcd3 in operator() (__closure=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:326
#10 (anonymous
namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> >
(t=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:262
#11 QThreadPrivate::start (arg=0x7222506cab20
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:285
#12 0x000072224f0a955a in start_thread (arg=<optimized out>) at
pthread_create.c:447
#13 0x000072224f126a3c in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
Thread 3 (Thread 0x72223f4006c0 (LWP 16246)):
#0 0x000072224f1190bf in __GI___poll (fds=fds@entry=0x72223f3ffb70,
nfds=nfds@entry=2, timeout=timeout@entry=-1) at
../sysdeps/unix/sysv/linux/poll.c:29
#1 0x0000722251579ce8 in poll (__timeout=-1, __nfds=2, __fds=0x72223f3ffb70)
at /usr/include/bits/poll2.h:39
#2 QtWaylandClient::EventThread::run (this=0x5e4d656d1f70) at
/usr/src/debug/qt6-wayland/qtwayland-everywhere-src-6.7.0/src/client/qwaylanddisplay.cpp:182
#3 0x000072224f8adcd3 in operator() (__closure=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:326
#4 (anonymous
namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> >
(t=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:262
#5 QThreadPrivate::start (arg=0x5e4d656d1f70) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:285
#6 0x000072224f0a955a in start_thread (arg=<optimized out>) at
pthread_create.c:447
#7 0x000072224f126a3c in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
Thread 2 (Thread 0x72223fe006c0 (LWP 16245)):
#0 0x000072224f0a5ebe in __futex_abstimed_wait_common64 (private=0,
cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5e4d656e18d0) at
futex-internal.c:57
#1 __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5e4d656e18d0,
expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0,
private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2 0x000072224f0a5f3f in __GI___futex_abstimed_wait_cancelable64
(futex_word=futex_word@entry=0x5e4d656e18d0, expected=expected@entry=0,
clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at
futex-internal.c:139
#3 0x000072224f0a8750 in __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x5e4d656e1880, cond=0x5e4d656e18a8) at pthread_cond_wait.c:503
#4 ___pthread_cond_wait (cond=0x5e4d656e18a8, mutex=0x5e4d656e1880) at
pthread_cond_wait.c:618
#5 0x000072224f8b8b90 in QWaitConditionPrivate::wait (deadline=...,
this=0x5e4d656e1880) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qwaitcondition_unix.cpp:102
#6 QWaitCondition::wait (this=this@entry=0x5e4d65656c30,
mutex=mutex@entry=0x5e4d65656c28, deadline=...) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qwaitcondition_unix.cpp:180
#7 0x0000722251579c68 in QtWaylandClient::EventThread::waitForReading
(this=0x5e4d65656bf0) at
/usr/src/debug/qt6-wayland/qtwayland-everywhere-src-6.7.0/src/client/qwaylanddisplay.cpp:216
#8 QtWaylandClient::EventThread::run (this=0x5e4d65656bf0) at
/usr/src/debug/qt6-wayland/qtwayland-everywhere-src-6.7.0/src/client/qwaylanddisplay.cpp:177
#9 0x000072224f8adcd3 in operator() (__closure=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:326
#10 (anonymous
namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> >
(t=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:262
#11 QThreadPrivate::start (arg=0x5e4d65656bf0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread_unix.cpp:285
#12 0x000072224f0a955a in start_thread (arg=<optimized out>) at
pthread_create.c:447
#13 0x000072224f126a3c in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
Thread 1 (Thread 0x72224a8019c0 (LWP 16241)):
[KCrash Handler]
#5 std::__atomic_base<int>::fetch_add (__m=std::memory_order_acq_rel, __i=1,
this=0xa00000060, this=<optimized out>, __i=<optimized out>, __m=<optimized
out>) at /usr/include/c++/13.2.1/bits/atomic_base.h:633
#6 QAtomicOps<int>::ref<int> (_q_value=<error reading variable: Cannot access
memory at address 0xa00000060>, _q_value=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qatomic_cxx11.h:259
#7 QBasicAtomicInteger<int>::ref (this=0xa00000060, this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qbasicatomic.h:47
#8 QThreadData::ref (this=0xa00000060) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/thread/qthread.cpp:99
#9 QObjectPrivate::connectImpl (sender=sender@entry=0x5e4d6564a270,
signal_index=5, receiver=receiver@entry=0x5e4d6564a270, slot=slot@entry=0x0,
slotObjRaw=slotObjRaw@entry=0x5e4d65e1b680, type=<optimized out>, types=0x0,
senderMetaObject=0x722244625700 <KScreen::WaylandConfig::staticMetaObject>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qobject.cpp:5250
#10 0x000072224f79574b in QObject::connectImpl (sender=0x5e4d6564a270,
signal=<optimized out>, receiver=0x5e4d6564a270, slot=0x0,
slotObjRaw=0x5e4d65e1b680, type=Qt::AutoConnection, types=0x0,
senderMetaObject=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qobject.cpp:5180
#11 0x00007222446192fd in
KScreen::WaylandConfig::setupRegistry()::{lambda(void*, wl_registry*, unsigned
int, char const*, unsigned int)#1}::_FUN(void*, wl_registry*, unsigned int,
char const*, unsigned int) () at /usr/include/qt6/QtCore/qobject.h:240
#12 0x000072224fbfc596 in ffi_call_unix64 () at ../src/x86/unix64.S:104
#13 0x000072224fbf900e in ffi_call_int (cif=cif@entry=0x7ffeda3a6f10,
fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>,
closure=closure@entry=0x0) at ../src/x86/ffi64.c:673
#14 0x000072224fbfbbd3 in ffi_call (cif=cif@entry=0x7ffeda3a6f10, fn=<optimized
out>, rvalue=rvalue@entry=0x0, avalue=avalue@entry=0x7ffeda3a6fe0) at
../src/x86/ffi64.c:710
#15 0x0000722252068645 in wl_closure_invoke
(closure=closure@entry=0x7222300027d0, target=<optimized out>,
target@entry=0x5e4d65f9d150, opcode=opcode@entry=0, data=<optimized out>,
flags=1) at ../wayland-1.22.0/src/connection.c:1025
#16 0x0000722252068e73 in dispatch_event (display=display@entry=0x5e4d65640550,
queue=0x5e4d65640640) at ../wayland-1.22.0/src/wayland-client.c:1631
#17 0x000072225206913c in dispatch_queue (queue=0x5e4d65640640,
display=0x5e4d65640550) at ../wayland-1.22.0/src/wayland-client.c:1777
#18 wl_display_dispatch_queue_pending (display=0x5e4d65640550,
queue=0x5e4d65640640) at ../wayland-1.22.0/src/wayland-client.c:2019
#19 0x0000722251579b5e in QtWaylandClient::EventThread::readAndDispatchEvents
(this=0x5e4d65656bf0) at
/usr/src/debug/qt6-wayland/qtwayland-everywhere-src-6.7.0/src/client/qwaylanddisplay.cpp:227
#20 0x000072224f7883e4 in QObject::event (this=0x5e4d65640320,
e=0x7222380014b0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qobject.cpp:1446
#21 0x00007222516fbfcb in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x5e4d65640320, e=0x7222380014b0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/widgets/kernel/qapplication.cpp:3287
#22 0x000072224f73dae8 in QCoreApplication::notifyInternal2
(receiver=0x5e4d65640320, event=event@entry=0x7222380014b0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qcoreapplication.cpp:1134
#23 0x000072224f73de74 in QCoreApplication::sendEvent (event=0x7222380014b0,
receiver=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qcoreapplication.cpp:1575
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0,
data=0x5e4d6551cba0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qcoreapplication.cpp:1932
#25 0x000072224f9860e4 in QCoreApplication::sendPostedEvents (receiver=0x0,
event_type=0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qcoreapplication.cpp:1789
#26 postEventSourceDispatch (s=0x5e4d65613140) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qeventdispatcher_glib.cpp:244
#27 0x000072224e3ba199 in g_main_dispatch (context=0x722240000f00) at
../glib/glib/gmain.c:3344
#28 0x000072224e4193bf in g_main_context_dispatch_unlocked
(context=0x722240000f00) at ../glib/glib/gmain.c:4152
#29 g_main_context_iterate_unlocked.isra.0
(context=context@entry=0x722240000f00, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4217
#30 0x000072224e3b9712 in g_main_context_iteration (context=0x722240000f00,
may_block=1) at ../glib/glib/gmain.c:4282
#31 0x000072224f983df4 in QEventDispatcherGlib::processEvents
(this=0x5e4d6564bd10, flags=...) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qeventdispatcher_glib.cpp:394
#32 0x000072224f745c7e in QEventLoop::processEvents (flags=...,
this=0x7ffeda3a75d0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qeventloop.cpp:100
#33 QEventLoop::exec (this=0x7ffeda3a75d0, flags=...) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qeventloop.cpp:182
#34 0x000072224f7416e8 in QCoreApplication::exec () at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/global/qflags.h:74
#35 0x00007222516f851a in QApplication::exec () at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/widgets/kernel/qapplication.cpp:2555
#36 0x00005e4d64c8f476 in main (argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/plasma-workspace/plasma-workspace-6.0.3/shell/main.cpp:214
Reported using DrKonqi
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