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.