segfault when closing Mixxx

[Daniel Schürmann]

This puzzles me since a while and now I was able to create a backtrace:

Thread 2 "QXcbEventReader" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe03d8700 (LWP 12842)]
0x00007fffe292d889 in ?? ()
(gdb) bt
#0 0x00007fffe292d889 in ?? ()
#1 0x00007fffe03d7c90 in ?? ()
#2 0x0000000001500700 in ?? ()
#3 0x00007fffe03d7cd0 in ?? ()
#4 0x0000000001500a60 in ?? ()
#5 0x00007fffffffd3bf in ?? ()
#6 0x00007ffff4cbc7be in QThreadPrivate::start (arg=0x1500700)
    at thread/qthread_unix.cpp:331
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

This was a debug build.
What is this, a stack overflow?

[Daniel Schürmann (daschuer)]

I have closed Mixxx with the close button because a second instance occupies the sound hardware

I have found this in the mixxx.log:

Debug [Main]: MixxxLibraryFeature::activate()
Debug [Main]: WTrackTableView::loadTrackModel() LibraryTableModel(0x3879520)
Debug [Main]: LibraryTableModel(0x3879520) select() took 3 ms 76
Debug [Main]: trying to restore position
Debug [Controller]: ControllerManager: Setting up devices
Debug [Controller]: Scanning PortMIDI devices:
Debug [Controller]: Scanning USB Bulk devices:
Debug [Controller]: Scanning HID devices:
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler1]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler2]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler3]"
Debug [Main]: Successfully deserialized BeatGrid
Debug [Main]: Successfully deserialized KeyMap
Debug [Main]: BaseTrackCache(0x3825b00) updateIndexWithQuery took 0 ms
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler4]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler5]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler6]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler7]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler8]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler9]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler10]"
Debug [Controller]: Found "" "" "r16" S/N "" "Interface 0"
Warning [Controller]: USB permissions problem (or device error.) Your account needs write access to USB HID controllers.
Debug [Controller]: ControllerManager::getControllerList
Debug [Controller]: Controller polling stopped.
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler11]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler12]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler13]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler14]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler15]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler16]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler17]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler18]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler19]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler20]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler21]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler22]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler23]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler24]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler25]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler26]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler27]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler28]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler29]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler30]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler31]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler32]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler33]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampler34]"
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Sampl...

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/9818