Bug#804694: libqt5xcbqpa5 SIGSEGV crashes sporadically at QXcbWindow::handleClientMessageEvent
Package: libqt5xcbqpa5
Version: 5.5.1+dfsg-6
Severity: important
Applications that are based on QT can crash with a SIGSEGV.
This happens for me on owncloud-client and quasselclient, others maybe
as well, but not yet stacktraced.
Here is a backtrace for quasselclient.
I'll happily supply more details if required. But I'm not very deep into QT.
Cheers
Markus
Program received signal SIGSEGV, Segmentation fault.
0x00007fffe1a6e94f in QXcbWindow::handleClientMessageEvent(xcb_client_message_event_t const*) ()
from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
(gdb) bt
#0 0x00007fffe1a6e94f in QXcbWindow::handleClientMessageEvent(xcb_client_message_event_t const*) ()
from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#1 0x00007fffe1a59b2b in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#2 0x00007fffe1a5a053 in QXcbConnection::processXcbEvents() () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#3 0x00007ffff2e777f1 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007ffff373c9dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#5 0x00007ffff3741ea6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#6 0x00007ffff2e47dbb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007ffff2e4a1b6 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007ffff2e9e163 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9 0x00007ffff08bdfe7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007ffff08be240 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007ffff08be2ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007ffff2e9e56f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007ffff2e4554a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ffff2e4d62c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x0000555555671736 in main ()
-- System Information:
Debian Release: stretch/sid
APT prefers testing
APT policy: (500, 'testing'), (90, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages libqt5xcbqpa5 depends on:
ii libc6 2.19-22
ii libegl1-mesa [libegl1-x11] 10.6.8-1
ii libfontconfig1 2.11.0-6.3
ii libfreetype6 2.6-2
ii libgcc1 1:5.2.1-23
ii libgl1-mesa-glx [libgl1] 10.6.8-1
ii libglib2.0-0 2.46.1-2
ii libice6 2:1.0.9-1+b1
ii libqt5core5a [qtbase-abi-5-5-1] 5.5.1+dfsg-6
ii libqt5dbus5 5.5.1+dfsg-6
ii libqt5gui5 5.5.1+dfsg-6
ii libsm6 2:1.2.2-1+b1
ii libstdc++6 5.2.1-23
ii libx11-6 2:1.6.3-1
ii libx11-xcb1 2:1.6.3-1
ii libxcb-glx0 1.10-3+b1
ii libxcb-icccm4 0.4.1-1
ii libxcb-image0 0.4.0-1
ii libxcb-keysyms1 0.4.0-1
ii libxcb-randr0 1.10-3+b1
ii libxcb-render-util0 0.3.9-1
ii libxcb-render0 1.10-3+b1
ii libxcb-shape0 1.10-3+b1
ii libxcb-shm0 1.10-3+b1
ii libxcb-sync1 1.10-3+b1
ii libxcb-xfixes0 1.10-3+b1
ii libxcb-xkb1 1.10-3+b1
ii libxcb1 1.10-3+b1
ii libxi6 2:1.7.5-1
ii libxkbcommon-x11-0 0.5.0-1
ii libxkbcommon0 0.5.0-1
ii libxrender1 1:0.9.9-2
libqt5xcbqpa5 recommends no packages.
libqt5xcbqpa5 suggests no packages.
-- no debconf information
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