https://bugs.kde.org/show_bug.cgi?id=476783
Bug ID: 476783
Summary: kwin_x11 crashes after unplugging one drive from a
two-drive Btrfs RAID1
Classification: Plasma
Product: kwin
Version: 5.27.5
Platform: Other
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: d7ghrr...@mozmail.com
Target Milestone: ---
Created attachment 163012
--> https://bugs.kde.org/attachment.cgi?id=163012&action=edit
kwin crash backtrace
SUMMARY
Crash of kwin_x11 and plasmashell when /home have brief timeout
STEPS TO REPRODUCE
1. Install Debian Stable with /home partition mounted as Btrfs Raid1 on two
physical disks
2. Unplug one drive from Btrfs. Filesystem will hang briefly, will output
timeout errors in dmesg
3. After a brief pause, /home will continue to work in Btrfs Raid1 degraded
mode. It's Raid1, so work on the desktop can continue no problem, until I end
my session and shutdown the computer.
4. However, plasmashell and kwin-x11 will crash when this happens.
OBSERVED RESULT
Crash of kwin_x11 and plasmashell (signal 11 SEGV and signal 7 BUS)
EXPECTED RESULT
No crashes, other desktop apps can survive brief inaccessibility of /home
partition, kwin should too.
SOFTWARE/OS VERSIONS
Operating System: Debian GNU/Linux 12
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel Version: 6.1.0-13-amd64 (64-bit)
Graphics Platform: X11
Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor
Memory: 62.7 GiB of RAM
Graphics Processor: AMD Radeon RX 6800 XT
Manufacturer: ASUS
ADDITIONAL INFORMATION
This bug is related to separate bug report #476760 on plasmashell crash which
happened at the same time:
https://bugs.kde.org/show_bug.cgi?id=476760
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