| Summary: | krfb sigsegv in libqt in QImage::sizeInBytes() | ||
|---|---|---|---|
| Product: | [Applications] krfb | Reporter: | LC <Lcstyle> |
| Component: | general | Assignee: | George Goldberg <grundleborg> |
| Status: | REPORTED --- | ||
| Severity: | crash | CC: | hsantanna, nate, starter_requisite817, w568w |
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Fedora RPMs | ||
| OS: | Linux | ||
| See Also: | https://bugs.kde.org/show_bug.cgi?id=491865 | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
if you click cancel on that initial dialog where I get the crash, then you can connect via vnc, unfortunately the VNC viewer reports an RFB Protocol Error: Bad Desktop Size 0x0, and the console prints: ``` kf.notifications: No event config could be found for event id "NewConnectionOnHold" under notifyrc file for app "krfb" kf.notifications: No event config could be found for event id "UserAcceptsConnection" under notifyrc file for app "krfb" kf.notifications: No event config could be found for event id "ConnectionClosed" under notifyrc file for app "krfb" ``` but it doesn't crash / stays running. The baremetal server does not have a very powerful graphics card, the Fedora 40 is a VM running in proxmox. |
Fedora 40 Workstation krfb - 24.05.0-2.fc40 SUMMARY ``` [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `krfb'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f793017319f in QImage::sizeInBytes() const () from /lib64/libQt6Gui.so.6 [Current thread is 1 (Thread 0x7f7929a49d00 (LWP 9239))] (gdb) bt #0 0x00007f793017319f in QImage::sizeInBytes() const () from /lib64/libQt6Gui.so.6 #1 0x00007f791895f3eb in QtPrivate::QCallableObject<PWFrameBuffer::Private::Private(PWFrameBuffer*)::{lambda(PipeWireFrame const&)#1}, QtPrivate::List<PipeWireFrame const&>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) () from /usr/lib64/qt6/plugins/krfb/framebuffer/pw.so #2 0x00007f792f9fa752 in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6 #3 0x00007f791885d74c in PipeWireSourceStream::frameReceived(PipeWireFrame const&) () from /lib64/libKPipeWire.so.6 #4 0x00007f7918863883 in PipeWireSourceStream::handleFrame(pw_buffer*) () from /lib64/libKPipeWire.so.6 #5 0x00007f79188645af in PipeWireSourceStream::process() () from /lib64/libKPipeWire.so.6 #6 0x00007f79186e9488 in do_call_process () from /lib64/libpipewire-0.3.so.0 #7 0x00007f791864152a in flush_items () from /usr/lib64/spa-0.2/support/libspa-support.so #8 0x00007f7918640445 in source_event_func () from /usr/lib64/spa-0.2/support/libspa-support.so #9 0x00007f7918642246 in loop_iterate () from /usr/lib64/spa-0.2/support/libspa-support.so #10 0x00007f7918852409 in QtPrivate::QCallableObject<PipeWireCore::init(int)::{lambda()#1}, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) () from /lib64/libKPipeWire.so.6 #11 0x00007f792f9fa752 in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6 #12 0x00007f792fa0802d in QSocketNotifier::activated(QSocketDescriptor, QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) () from /lib64/libQt6Core.so.6 #13 0x00007f792fa0883b in QSocketNotifier::event(QEvent*) () from /lib64/libQt6Core.so.6 #14 0x00007f7930b8b168 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6 #15 0x00007f792f995b18 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6 #16 0x00007f792fc7dd0f in socketNotifierSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt6Core.so.6 #17 0x00007f792e516e8c in g_main_context_dispatch_unlocked.lto_priv () from /lib64/libglib-2.0.so.0 #18 0x00007f792e578c98 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0 #19 0x00007f792e518383 in g_main_context_iteration () from /lib64/libglib-2.0.so.0 #20 0x00007f792fc7cb53 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6 #21 0x00007f792f9a2713 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6 #22 0x00007f792f99e69c in QCoreApplication::exec() () from /lib64/libQt6Core.so.6 #23 0x0000558736254912 in main () ``` STEPS TO REPRODUCE 1. launch krfb in fedora 40 2. "Remote Control Requested" Dialog is presented with buttons Share/Cancel 3. Click share OBSERVED RESULT ``` $ krfb libEGL warning: pci id for fd 9: 1b36:0100, driver (null) libEGL warning: MESA-LOADER: failed to open qxl: /usr/lib64/dri/qxl_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib64/dri, suffix _dri) MESA: error: ZINK: failed to choose pdev libEGL warning: egl: failed to create dri2 screen Initializing D-Bus connectivity with XDG Desktop Portal DBus session created: "/org/freedesktop/portal/desktop/request/1_113/krfb4080005267" kpipewire_logging: Failed to query DMA-BUF formats. Segmentation fault (core dumped) ``` EXPECTED RESULT No Crash SOFTWARE/OS VERSIONS Linux/KDE Plasma: 6.1.0-3.fc40 (available in About System) KDE Plasma Version: 6.1.0-3.fc40 KDE Frameworks Version: 6.3.0 Qt Version: 6.7.1 ADDITIONAL INFORMATION Operating System: Fedora Linux 40 KDE Plasma Version: 6.1.0 KDE Frameworks Version: 6.3.0 Qt Version: 6.7.1 Kernel Version: 6.9.5-200.fc40.x86_64 (64-bit) Graphics Platform: Wayland Processors: 64 × QEMU Virtual CPU version 2.5+ Memory: 31.3 GiB of RAM Graphics Processor: llvmpipe Manufacturer: QEMU Product Name: Standard PC (i440FX + PIIX, 1996) System Version: pc-i440fx-9.0