Reproducible crash: excerpt from log written out by devel-su journalctl -fa

[Wikiwide]

The crash can be caused from book list of the app when trying to open a book and, I think, incidentally hitting invisible but still present Slider.

Aug 18 11:13:02 Pro1 restart[28516]: [D] unknown:0 - "Error: Invalid Font Weight"
Aug 18 11:13:06 Pro1 [11070]: [W] BooksCoverWidget::DefaultImage::retain:122 - Failed to load /usr/share/openrepos-books/data/default-cover.jpg
Aug 18 11:13:06 Pro1 [11070]: [D] onCompleted:291 - BooksDragArea created
Aug 18 11:13:06 Pro1 [11070]: [D] expression for script:272 - Warning: Slider.maximumValue needs to be higher than Slider.minimumValue
Aug 18 11:13:06 Pro1 [11070]: [D] onCompleted:424 - Warning: specifying an object instance for initialPage is sub-optimal - prefer to use a Component
Aug 18 11:13:06 Pro1 invoker[6896]: WARNING: An inactive plugin is misbehaving - tried to show a window!
Aug 18 11:13:06 Pro1 invoker[6896]: WARNING: requestActivate() called for QQuickView(0x438840) which has Qt::WindowDoesNotAcceptFocus set.
Aug 18 11:13:06 Pro1 lipstick[5776]: [W] unknown:0 - WindowPixmapItem does not have a source texture, cover will be dropped..
Aug 18 11:13:06 Pro1 booster-silica-qt5[11130]: [D] unknown:0 - Using Wayland-EGL
Aug 18 11:13:06 Pro1 [11070]: [D] onTriggered:302 - /home/nemo/Documents/Books startup is taking too long
Aug 18 11:13:06 Pro1 mapplauncherd[11130]: SilicaBooster: Initiate asynchronous preload.
Aug 18 11:13:10 Pro1 [11070]: [D] expression for script:272 - Warning: Slider.maximumValue needs to be higher than Slider.minimumValue
Aug 18 11:13:10 Pro1 [11070]: [W] unknown:86 - file:///usr/share/openrepos-books/qml/BooksCoverPage.qml:86:5: QML BookCover: Binding loop detected for property "book"
Aug 18 11:13:14 Pro1 [11070]: [D] expression for script:272 - Warning: Slider.maximumValue needs to be higher than Slider.minimumValue
Aug 18 11:13:16 Pro1 kernel: IRQ5 no longer affine to CPU7
Aug 18 11:13:16 Pro1 kernel: IRQ5 no longer affine to CPU5
Aug 18 11:13:18 Pro1 mapplauncherd[6919]: Boosted process (pid=11070) was terminated due to signal 11
Aug 18 11:13:18 Pro1 invoker[11127]: error: Can't send signal 11 to application [11070]: No such process
Aug 18 11:13:18 Pro1 restart[28516]: [D] unknown:0 - "Error: Invalid Font Weight"

Thank you. Best wishes,
Wikiwide

[monich]

Is there any way to get a core dump or backtrace?

[Wikiwide]

A core dump file (zipped) has been uploaded to https://filebin.net/y3tlh4qzlfm7s78e . The link will expire in a week. Please see if the file helps with identification of the bug. Thank you.

[monich]

Hmm... doesn't ring a bell, unfortunately.

Core was generated by `openrepos-books'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0xf577dcda in checked_request2size (sz=<synthetic pointer>, req=req@entry=36) at malloc.c:3545
3545	  if (!checked_request2size (bytes, &nb))
[Current thread is 1 (Thread 0xf342b010 (LWP 18168))]
(gdb) bt
#0  0xf577dcda in checked_request2size (sz=<synthetic pointer>, req=req@entry=36) at malloc.c:3545
#1  _int_malloc (av=av@entry=0xf582c59c <main_arena>, bytes=bytes@entry=36) at malloc.c:3545
#2  0xf577f808 in __GI___libc_malloc (bytes=bytes@entry=36) at malloc.c:3066
#3  0xf592df4e in operator new (sz=36) at ../../../../libstdc++-v3/libsupc++/new_op.cc:50
#4  0xf5ac1886 in QHashData::detach_helper (this=<optimized out>, node_duplicate=<optimized out>, node_delete=<optimized out>, nodeSize=12, nodeAlign=<optimized out>)
    at tools/qhash.cpp:481
#5  0xf65bc9c4 in QHash<QQuickWindow*, QHashDummyValue>::detach_helper (this=<optimized out>) at /usr/include/qt5/QtCore/qhash.h:566
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb) 

I wonder if that could be one of those cases when Qt goes into infinite recursion trying to dispatch a touch event and dies a horrible death when it runs out of stack.