| Summary: | Crash of plasmashell in org_kde_kwin_shadow_manager_unset() related to session crash after resume from suspend | ||
|---|---|---|---|
| Product: | [Plasma] plasmashell | Reporter: | Jan Rathmann <jan.rathmann> |
| Component: | generic-crash | Assignee: | Plasma Bugs List <plasma-bugs> |
| Status: | REPORTED --- | ||
| Severity: | crash | CC: | kde, kdedev, nate, vlad.zahorodnii, xaver.hugl |
| Priority: | NOR | ||
| Version: | master | ||
| Target Milestone: | 1.0 | ||
| Platform: | Other | ||
| OS: | Linux | ||
| See Also: | https://bugs.kde.org/show_bug.cgi?id=445893 | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
Plasma crashing isn't unexpected when the whole session goes down. I'm assuming you were using a Wayland session, right? Can you get a backtrace of kwin_wayland's crash using `coredumpctl`? See the docs for how to do this at https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl Thanks! (In reply to Nate Graham from comment #1) > Plasma crashing isn't unexpected when the whole session goes down. > > I'm assuming you were using a Wayland session, right? Can you get a > backtrace of kwin_wayland's crash using `coredumpctl`? See the docs for how > to do this at > https://community.kde.org/Guidelines_and_HOWTOs/Debugging/ > How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl > > Thanks! The interesting thing here is that the crash of plasmashell which left the coredump happened _after_ I re-logged in from SDDM just after the session went down – sorry if I failed to make that clear: (first) session -> suspend -> resume -> session crashed -> SDDM -> re-login (into second session) -> plasmashell crash shortly after login (backtrace) Yeah this was from the Wayland session. Unfortunately, kwin crashing/quitting hasn't left anything in /var/lib/systemd/coredump – the lines from `journalctl --user` that I posted in the report are the only remains I could find from the unexpected session crash that preceded this plasmashell crash (which happened shortly after loggin in again, as described above). Hmm, OK. Thanks anyway. Just as a data point, I haven't seen this kind of crash on my git-master system, either in Wayland or X11. I also searched through my crash dump files and I see no instance of org_kde_kwin_shadow_manager_unset. I don't know what might be different between our systems. |
The crash happened after the following series of events: 1. Resuming system from suspend. 2. Screen showed workspace as usual for ~1 sec., then session crashed --> back to SDDM Related messages from journalclt: Aug 16 11:48:37 speedy2022 ksmserver[2209]: The X11 connection broke (error 1). Did the X11 server die? Aug 16 11:48:37 speedy2022 kded6[2496]: X connection to :1 broken (explicit kill or server shutdown). Aug 16 11:48:37 speedy2022 kaccess[2592]: The X11 connection broke (error 1). Did the X11 server die? Aug 16 11:48:37 speedy2022 xembedsniproxy[2328]: The X11 connection broke (error 1). Did the X11 server die? Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: 2 XSELINUXs still allocated at reset Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: SCREEN: 0 objects of 728 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: DEVICE: 0 objects of 40 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: CLIENT: 0 objects of 464 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: WINDOW: 0 objects of 72 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: PIXMAP: 2 objects of 160 bytes = 320 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: GC: 0 objects of 40 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: CURSOR: 0 objects of 16 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: SYNC_FENCE: 0 objects of 24 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: TOTAL: 2 objects, 320 bytes, 0 allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: 2 PIXMAPs still allocated at reset Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: PIXMAP: 2 objects of 160 bytes = 320 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: GC: 0 objects of 40 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: CURSOR: 0 objects of 16 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: SYNC_FENCE: 0 objects of 24 bytes = 0 total bytes 0 private allocs Aug 16 11:48:37 speedy2022 kwin_wayland_wrapper[2126]: TOTAL: 2 objects, 320 bytes, 0 allocs Aug 16 11:48:37 speedy2022 gmenudbusmenuproxy[2324]: The X11 connection broke (error 1). Did the X11 server die? Aug 16 11:48:37 speedy2022 systemd[1836]: plasma-kwin_wayland.service: Watchdog timeout (limit 15s)! Aug 16 11:48:37 speedy2022 systemd[1836]: plasma-kwin_wayland.service: Killing process 1997 (kwin_wayland_wr) with signal SIGHUP. Aug 16 11:48:37 speedy2022 systemd[1836]: plasma-kwin_wayland.service: Killing process 2012 (kwin_wayland) with signal SIGHUP. Aug 16 11:48:37 speedy2022 systemd[1836]: plasma-kwin_wayland.service: Killing process 2126 (Xwayland) with signal SIGHUP. Aug 16 11:48:37 speedy2022 systemd[1836]: Stopped target plasma-workspace-wayland.target. Aug 16 11:48:37 speedy2022 systemd[1836]: Stopped target plasma-workspace.target - KDE Plasma Workspace. 3. After re-logging in, plasmashell crashed. (DrKonqi didn't pick up the report, so I'm posting the backtrace manually.) #0 0x00007a3c9f3ef6e4 in KCrash::defaultCrashHandler (sig=11) at /home/jan/kde/src/kcrash/src/kcrash.cpp:529 #1 0x00007a3c9b445320 in <signal handler called> () at /lib/x86_64-linux-gnu/libc.so.6 #2 wl_proxy_get_version (proxy=0x0) at ../../src/wayland/src/wayland-client.c:2324 #3 0x00007a3c8ffb5a66 in org_kde_kwin_shadow_manager_unset (org_kde_kwin_shadow_manager=0x0, surface=0x57038ae3f820) at /home/jan/kde/build/kwindowsystem/src/platforms/wayland/wayland-shadow-client-protocol.h:115 #4 0x00007a3c8ffb6151 in QtWayland::org_kde_kwin_shadow_manager::unset (this=0x57038a2f5760, surface=0x57038ae3f820) at /home/jan/kde/build/kwindowsystem/src/platforms/wayland/qwayland-shadow.cpp:78 #5 0x00007a3c8ffd4709 in WindowShadow::internalDestroy (this=0x57038acf9d40) at /home/jan/kde/src/kwindowsystem/src/platforms/wayland/windowshadow.cpp:195 #6 0x00007a3c8ffd47d6 in WindowShadow::destroy (this=0x57038acf9d40) at /home/jan/kde/src/kwindowsystem/src/platforms/wayland/windowshadow.cpp:211 #7 0x00007a3c9e0b4a17 in KWindowShadow::destroy (this=0x57038ae44470) at /home/jan/kde/src/kwindowsystem/src/kwindowshadow.cpp:266 #8 0x00007a3c9e0b3bd6 in KWindowShadow::~KWindowShadow (this=0x57038ae44470, __in_chrg=<optimized out>) at /home/jan/kde/src/kwindowsystem/src/kwindowshadow.cpp:65 #9 0x00007a3c9e0b3c12 in KWindowShadow::~KWindowShadow (this=0x57038ae44470, __in_chrg=<optimized out>) at /home/jan/kde/src/kwindowsystem/src/kwindowshadow.cpp:66 #10 0x00007a3c9bdd4d9d in QObjectPrivate::deleteChildren (this=this@entry=0x57038acf4aa0) at /home/jan/kde/src/qtbase/src/corelib/kernel/qobject.cpp:2222 #11 0x00007a3c9bdd9d4f in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at /home/jan/kde/src/qtbase/src/corelib/kernel/qobject.cpp:1172 #12 0x00007a3c9e33a1c4 in KSvg::Svg::~Svg (this=0x57038acf4a70, __in_chrg=<optimized out>) at /home/jan/kde/src/ksvg/src/ksvg/svg.cpp:872 #13 0x00007a3c9fa0bde8 in DialogShadows::~DialogShadows (this=0x57038acf4a70, __in_chrg=<optimized out>) at /home/jan/kde/src/libplasma/src/plasmaquick/dialogshadows.cpp:63 #14 0x00007a3c9fa0be08 in DialogShadows::~DialogShadows (this=0x57038acf4a70, __in_chrg=<optimized out>) at /home/jan/kde/src/libplasma/src/plasmaquick/dialogshadows.cpp:63 #15 0x00007a3c9bdd4d9d in QObjectPrivate::deleteChildren (this=this@entry=0x570388fd3360) at /home/jan/kde/src/qtbase/src/corelib/kernel/qobject.cpp:2222 #16 0x00007a3c9bdd9d4f in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at /home/jan/kde/src/qtbase/src/corelib/kernel/qobject.cpp:1172 #17 0x00005703883bd75d in main (argc=2, argv=0x7ffdb2f71e78) at /home/jan/kde/src/plasma-workspace/shell/main.cpp:189 ADDITIONAL INFORMATION self-build Plasma 6.2/Qt 6.7 from 08-13-24 Kubuntu 24.04