https://bugs.freedesktop.org/show_bug.cgi?id=102423
Bug ID: 102423 Summary: kwin segfaults when Alt+Tabbing with windows thumbnails on AMDGPU Product: Mesa Version: 17.1 Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/radeonsi Assignee: dri-devel@lists.freedesktop.org Reporter: leguen.yannick@gmail.com QA Contact: dri-devel@lists.freedesktop.org
Created attachment 133806 --> https://bugs.freedesktop.org/attachment.cgi?id=133806&action=edit Backtrace of the kwin crash
I use an AMD RX560 with Mesa 17.1.7 and Plasma 5.10.5 (ArchLinux).
When I use the "thumbnails" Alt+Tab style for kwin, sooner or later kwin will segfault while alt+tabbing. Without windows thumbnails, everything works ok.
I reported this bug on the KDE bugtracker already : https://bugs.kde.org/show_bug.cgi?id=383058
But the crash seems to come from the driver. It happened with previous Mesa 17.1 versions too.
See the backtrace in attachment.
https://bugs.freedesktop.org/show_bug.cgi?id=102423
leguen.yannick@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- OS|All |Linux (All) Hardware|Other |x86-64 (AMD64)
https://bugs.freedesktop.org/show_bug.cgi?id=102423
Michel Dänzer michel@daenzer.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO
--- Comment #1 from Michel Dänzer michel@daenzer.net --- Nothing can be done about this without debugging symbols being available for /usr/lib/xorg/modules/dri/radeonsi_dri.so in the backtrace.
https://bugs.freedesktop.org/show_bug.cgi?id=102423
--- Comment #2 from leguen.yannick@gmail.com --- How can I provide such debugging symbols?
https://bugs.freedesktop.org/show_bug.cgi?id=102423
Henry Hu henry.hu.sh@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |henry.hu.sh@gmail.com
--- Comment #3 from Henry Hu henry.hu.sh@gmail.com --- I also reported a similar bug to KDE: https://bugs.kde.org/show_bug.cgi?id=384901 and they sent me upstream.
The backtrace is very similar. On the other hand, I am using the r600 dri module. It crashes every time I do alt+tab. I'll try to build with debug.
https://bugs.freedesktop.org/show_bug.cgi?id=102423
--- Comment #4 from pmargeti34@gmail.com --- Created attachment 137109 --> https://bugs.freedesktop.org/attachment.cgi?id=137109&action=edit backtrace kwin alt-tab thumbnails AMDGPU
Kwin segfaults when alt-tabbing with "thumbnails" selected. I wanted to file a bug report against AMDGPU driver, but search shows exactly the same problem with radeonsi, so I'm adding to this bug report. If you think I should open a new bug against AMDGPU, let me know please.
AMD Rx560 using AMDGPU with DC=1 on linux 4.15.0 Xorg: 1.19.6+13+gd0d1a694f-1 xf86-video-amdgpu: 1.4.0-1 kwin: 5.11.95-1 mesa: 17.3.3-2
Filed a bug with KDE: https://bugs.kde.org/show_bug.cgi?id=389593 They told me it's a driver crash and sent me here.
https://bugs.freedesktop.org/show_bug.cgi?id=102423
--- Comment #5 from Alex Deucher alexdeucher@gmail.com --- amdgpu is the kernel driver and radeonsi is the user mode mesa driver. They both work together on your system.
https://bugs.freedesktop.org/show_bug.cgi?id=102423
--- Comment #6 from pmargeti34@gmail.com --- Plasma updated to 5.12 today, and I no longer can reproduce this bug. I guess this was on their end afterall.
https://bugs.freedesktop.org/show_bug.cgi?id=102423
Timothy Arceri t_arceri@yahoo.com.au changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |NOTOURBUG Status|NEEDINFO |RESOLVED
--- Comment #7 from Timothy Arceri t_arceri@yahoo.com.au --- Closing as per comment 6.
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