https://bugs.kde.org/show_bug.cgi?id=488921
Chiitoo <esco...@hotmail.com> changed:
What |Removed |Added
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CC| |esco...@hotmail.com
--- Comment #5 from Chiitoo <esco...@hotmail.com> ---
I've been seeing a more or less identical backtrace since kwin 6.0.90 (to which
I updated from 6.0.5 ~2 weeks ago).
I believe what actually triggers this, is compositing being switched on and/or
off again.
I don't have 'allow applications to block compositing' enabled, but I often
switch it off manually, which is how I encountered the issue.
One way to re-produce on my machine:
1. Have compositing enabled, and 'enable on startup' checked.
2. Select a window decoration that is not Breeze or Oxygen; these don't seem to
trigger it for me, but Plastik, and any other additional themes I've tried do.
3. Also have some application running, Konsole for example.
4. Turn off compositing.
5. Interact with the Konsole application via the panel.
6. Segmentation fault ensues.
There was another issue where simply toggling compositing would segfault, but
that was fixed in 6.1.0 for me (change from 5db1cae615b [1] specifically, which
I used before 6.1.0 was out).
I'm using KWin with LXQt, X11, and had not found anyone seeing this on Plasma
yet, and I could not make it happen in a virtual machine, but looking at the
code, it might be somewhat specific to 'glxcontext', which I guess might differ
there (using 'amdgpu' on the real machine). Been trying to gather as much
information as I can before filing a bug report, but this seems to be talking
about the same issue (yay!).
Triggering the crash without 'enable on startup' checked on 'compositing' gives
a somewhat different backtrace, which is the one that is similar to the one in
comment 4.
Regarding frame '#5 0x00005abcbd80e920 in ?? ()', I always see it end up in a
'?? ()' as well, but one time I saw 'libQt6Qml.so' there, but after compiling
qtdeclarative with debug symbols, it of course went back to '??'...
Thank you!
1.
https://invent.kde.org/plasma/kwin/-/commit/5db1cae615b177d58b065276e81da0993af0ed6e
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