Description of problem: Version-Release number of selected component: kwin-5.15.4-1.fc30 Additional info: reporter: libreport-2.10.0 backtrace_rating: 4 cmdline: /usr/bin/kwin_x11 -session 10d06d6567000154604483500000013170006_1555450045_992504 crash_function: qt_message_fatal executable: /usr/bin/kwin_x11 journald_cursor: s=b8b84ba3f89a4674a918fb5616b14f08;i=881;b=cb3f18edc2e04d488da708d46a6ddf4a;m=70013c9;t=586acb6ace9e0;x=4dcd6506f031833b kernel: 5.0.7-300.fc30.x86_64 rootdir: / runlevel: N 5 type: CCpp uid: 1000 Potential duplicate: bug 1651001
Created attachment 1556019 [details] File: backtrace
Created attachment 1556020 [details] File: cgroup
Created attachment 1556021 [details] File: core_backtrace
Created attachment 1556022 [details] File: cpuinfo
Created attachment 1556023 [details] File: dso_list
Created attachment 1556024 [details] File: environ
Created attachment 1556025 [details] File: limits
Created attachment 1556026 [details] File: maps
Created attachment 1556027 [details] File: mountinfo
Created attachment 1556028 [details] File: open_fds
Created attachment 1556029 [details] File: proc_pid_status
Created attachment 1556030 [details] File: var_log_messages
This crash happened once, but I have a count of over 500 of bug #1695374 . The issue started right after the F30 stable (mega)update among others containing: Mesa 19.0.2, Qt5 5.12.1, KDE Plasma 5.15.4. There was no Kernel update at that time. For more details see attached dnf history info command log from the discussed update. My KDE desktop became unusable, often it hangs within seconds after startup. It can be triggered by any action/movement in the KDE Menu or Task bar. Only way out is to reboot using SysRq: Alt+SysRq+e s i u b. Also, /usr/bin/plasmashell often starts to use 100% CPU. If I manage to kill the plasmashell, (I always have an open konsole) konsole, firefox (lanched from konsole), nedit works OK. Background is garbled. ABRT catches no other crash. I switched SELInux to permissive mode.
Created attachment 1556043 [details] dnf history info of the update triggering the issue
Appears to be video driver issue, Apr 16 23:47:04 omega kwin_x11[1584]: Freeze in OpenGL initialization detected Apr 16 23:47:05 omega kwin_x11[2147]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 178, resource id: 27262983, major code: 20 (GetProperty), minor code: 0 Apr 16 23:47:05 omega kwin_x11[2147]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 179, resource id: 27262983, major code: 20 (GetProperty), minor code: 0 Apr 16 23:47:06 omega kwin_x11[2147]: kwin_core: Compositing is not possible
In the same time, I also started to hit: Bug #1695374 - [abrt] nouveau_vma_del: WARNING: CPU: 5 PID: 186 at drivers/gpu/drm/nouveau/nvif/vmm.c:68 nvif_vmm_put+0x6a/0x80 [nouveau] [nouveau] ABRT count: 809 Bug #1697004 - [abrt] nouveau_vma_del: WARNING: CPU: 5 PID: 3895 at drivers/gpu/drm/nouveau/nvif/vmm.c:68 nvif_vmm_put+0x6a/0x80 [nouveau] [nouveau] ABRT count: 1
The latest qt5-qtbase 5.12.1-6 update is a functional workaround. https://bodhi.fedoraproject.org/updates/FEDORA-2019-f43ed18461 KDE/Plasmashell does not crash, freezes, etc. Thank you, Rex!
*** This bug has been marked as a duplicate of bug 1706420 ***
*** Bug 1716048 has been marked as a duplicate of this bug. ***
*** Bug 1761124 has been marked as a duplicate of this bug. ***