https://bugs.kde.org/show_bug.cgi?id=433465
Bug ID: 433465
Summary: plasmashell segfaults when fiddling with PulseEffects
entry in plasma-pa in a Pipewire session
Product: plasmashell
Version: 5.21.0
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: generic-crash
Assignee: plasma-b...@kde.org
Reporter: alex...@protonmail.com
Target Milestone: 1.0
I didn't see any plasma-pa in the component selection for this issue, so I just
gave it a generic-crash component. I also have a microphone active, which
probably contributes to this crash.
1. Be in a Pipewire session
2. Open PulseEffects
3. Switch to the inputs view (microphone icon in the top left).
4. Open plasma-pa
5. Switch to the "Applications" tab
6. Fiddle around with the first PulseEffects entry.
I encountered crashes when changing the volume of the first PulseEffects entry,
but in one instance, simply hovering over the icon triggered a crash.
Application: Plasma (plasmashell), signal: Segmentation fault
[KCrash Handler]
#4 doActivate<false>(QObject*, int, void**) (sender=0x55becb181860,
signal_index=3, argv=0x0) at kernel/qobject.h:132
#5 0x00007f0ad09549e7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x55becb181860, m=<optimized out>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at
kernel/qobject.cpp:3946
#6 0x00007f0a4626dbf5 in QPulseAudio::VolumeMonitor::volumeChanged()
(this=0x55becb181860) at
/usr/src/debug/plasma-pa-5.21.0-1.fc34.x86_64/x86_64-redhat-linux-gnu/src/plasma-volume-declarative_autogen/EWIEGA46WW/moc_volumemonitor.cpp:215
#7 0x00007f0a46276733 in QPulseAudio::VolumeMonitor::read_callback(pa_stream*,
unsigned long, void*) (s=0x55bec6e255e0, length=<optimized out>,
userdata=0x55becb181860) at
/usr/src/debug/plasma-pa-5.21.0-1.fc34.x86_64/src/volumemonitor.cpp:173
#8 0x00007f0a461bc9e1 in pstream_memblock_callback (p=<optimized out>,
channel=<optimized out>, offset=0, seek=PA_SEEK_RELATIVE, chunk=0x7ffea181f720,
userdata=0x55bec76bf040) at pulse/context.c:430
#9 0x00007f0a4616af05 in memblock_complete (re=0x55bec9b29f60,
p=0x55bec9b29de0) at pulsecore/pstream.c:849
#10 do_read (p=p@entry=0x55bec9b29de0, re=re@entry=0x55bec9b29f60) at
pulsecore/pstream.c:1011
#11 0x00007f0a4616c79f in do_pstream_read_write (p=0x55bec9b29de0) at
pulsecore/pstream.c:260
#12 0x00007f0a4620091e in dispatch_func (source=0x55bec7e02db0,
callback=<optimized out>, userdata=<optimized out>) at
pulse/glib-mainloop.c:584
#13 0x00007f0acee070ff in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#14 0x00007f0acee5ac98 in g_main_context_iterate.constprop () at
/lib64/libglib-2.0.so.0
#15 0x00007f0acee049f3 in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#16 0x00007f0ad09766f8 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x55bec6a8ff50, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#17 0x00007f0ad09289b2 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffea181f9f0, flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:69
#18 0x00007f0ad0930544 in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#19 0x000055bec5c72776 in main(int, char**) (argc=<optimized out>,
argv=0x7ffea181fc00) at
/usr/src/debug/plasma-workspace-5.21.0-1.fc34.x86_64/shell/main.cpp:247
[Inferior 1 (process 3150) detached]
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