[Pkg-matrix-maintainers] Bug#981185: nheko: video call results in a segfault

[Pirate Praveen]

Package: nheko
Version: 0.8.0-1
Severity: important
Justification: voip is a new feature, there are still other 
improvements worth an upgrade

I got this crash using nheko built using an older gcc 10 *till we have 
gcc 10.3 is in the archive)

You can use https://people.debian.org/~praveen/nheko/ to reproduce this 
error.

User glandos shared this stacktrace in upstream nheko matrix room.

Thread 1 "nheko" received signal SIGSEGV, Segmentation fault.
0x00007fff9ef0dcb5 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
(gdb) bt
#0 0x00007fff9ef0dcb5 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
#1 0x00007fff9eeff3f1 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
#2 0x00007fff9eee64d6 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
#3 0x00007fff9f0e7255 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
#4 0x00007fff9f0eb6f8 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
#5 0x00007fff9f0ebaee in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
#6 0x00007fff9f0b3482 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
#7 0x00007fff9f57217c in vaPutImage () from 
/usr/lib/x86_64-linux-gnu/libva.so.2
#8 0x00007fff9f622b2c in ?? () from 
/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#9 0x00007fff9f5e1476 in ?? () from 
/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#10 0x00007fff9f5ec148 in ?? () from 
/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#11 0x00007ffff261c916 in ?? () from 
/usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#12 0x00007ffff5a1934e in gst_element_change_state () from 
/usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#13 0x00007ffff5a19a8d in ?? () from 
/usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#14 0x00007fffd0208cec in ?? () from 
/usr/lib/x86_64-linux-gnu/libQt5MultimediaGstTools.so.5
#15 0x00007fffd0207ed9 in 
QGstreamerVideoWindow::QGstreamerVideoWindow(QObject*, QByteArray 
const&) ()
   from /usr/lib/x86_64-linux-gnu/libQt5MultimediaGstTools.so.5
#16 0x00007fffe801380b in ?? () from 
/usr/lib/x86_64-linux-gnu/qt5/plugins/mediaservice/libgstmediaplayer.so
#17 0x00007fffe80173e1 in ?? () from 
/usr/lib/x86_64-linux-gnu/qt5/plugins/mediaservice/libgstmediaplayer.so
#18 0x00007ffff7df821f in ?? () from 
/usr/lib/x86_64-linux-gnu/libQt5Multimedia.so.5
#19 0x00007ffff7e355db in QMediaPlayer::QMediaPlayer(QObject*, 
QFlags<QMediaPlayer::Flag>) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Multimedia.so.5
#20 0x000055555575ecd6 in CallManager::CallManager 
(this=0x5555564cd2d0, parent=<optimized out>)
    at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:120
#21 0x000055555576d069 in ChatPage::ChatPage (this=0x5555564cca90, 
userSettings=..., parent=0x7fffffffe6b0)
    at ./src/ChatPage.cpp:75
#22 0x00005555557d5e82 in MainWindow::MainWindow (this=0x7fffffffe6b0, 
parent=<optimized out>)
    at ./src/MainWindow.cpp:78
#23 0x000055555562e763 in main (argc=<optimized out>, argv=<optimized 
out>) at ./src/main.cpp:234
(gdb)