https://bugs.kde.org/show_bug.cgi?id=497424
Steve Therrien <kdeb...@stevetherrien.ca> changed:
What |Removed |Added
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CC| |kdeb...@stevetherrien.ca
--- Comment #5 from Steve Therrien <kdeb...@stevetherrien.ca> ---
Created attachment 179017
--> https://bugs.kde.org/attachment.cgi?id=179017&action=edit
A script to repeatedly send notifications, resulting in plasmashell crashing.
I experience regular crashes due to my notification-heavy workflow before
finding this bug. It appears like plasmashell is leaking descriptors when using
the NVIDIA driver with explicit sync.
I don't know whether it's NVIDIA or Plasma that's responsible, but I've
attached a script that easily trigger this crash. Maybe it will help someone
identify the root cause.
This is a partial output from the script:
[user@fedroa-pc:[~]> ./leak.sh
Explicit sync is enabled. Descriptors should leak.
Notification PID Limit Open descriptors Until limit
------------ ----- ----- ---------------- -----------
1 2563 1024 157 867
2 2563 1024 157 867
3 2563 1024 168 856
4 2563 1024 177 847
[snip]
216 2563 1024 1016 8
217 2563 1024 1020 4
218 2563 1024 1017 7
219 2563 1024 1024 0
plasmashell crashed after 219 notifications
Mar 01 12:45:13 fedroa-pc plasmashell[2563]: qt.qpa.wayland: eglSwapBuffers
failed with 0x3000, surface: 0x55db036bdf90
Mar 01 12:45:13 fedroa-pc plasmashell[2563]: qt.qpa.wayland: eglSwapBuffers
failed with 0x3000, surface: 0x55db036bdf90
Mar 01 12:45:13 fedroa-pc plasmashell[2563]: qt.qpa.wayland: eglSwapBuffers
failed with 0x3000, surface: 0x55db03438840
Mar 01 12:45:13 fedroa-pc plasmashell[2563]: qt.qpa.wayland: eglSwapBuffers
failed with 0x3000, surface: 0x55db03438840
Mar 01 12:45:14 fedroa-pc plasmashell[2563]: error marshalling arguments for
import_timeline: dup failed: Too many open files
Mar 01 12:45:14 fedroa-pc plasmashell[2563]: Error marshalling request: Too
many open files
Mar 01 12:45:14 fedroa-pc plasmashell[2563]: qt.qpa.wayland: eglSwapBuffers
failed with 0x3000, surface: 0x55db03f04800
Mar 01 12:45:14 fedroa-pc plasmashell[2563]: qt.qpa.wayland: eglSwapBuffers
failed with 0x3000, surface: 0x55db03f04800
Mar 01 12:45:14 fedroa-pc plasmashell[2563]: The Wayland connection experienced
a fatal error: Too many open files
Mar 01 12:45:14 fedroa-pc systemd[1983]: Starting grub-boot-success.service -
Mark boot as successful...
Mar 01 12:45:14 fedroa-pc systemd[1983]: Finished grub-boot-success.service -
Mark boot as successful.
Mar 01 12:45:14 fedroa-pc systemd[1983]: plasma-plasmashell.service: Main
process exited, code=exited, status=255/EXCEPTION
Mar 01 12:45:14 fedroa-pc systemd[1983]: plasma-plasmashell.service: Failed
with result 'exit-code'.
Mar 01 12:45:14 fedroa-pc systemd[1983]: plasma-plasmashell.service: Consumed
23.288s CPU time, 331.5M memory peak.
As a workaround, increase plasmashell's open file limit and setting a large
`LimitNOFILE` value:
> vim systemctl edit --user plasma-plasmashell.service
[Service]
# https://access.redhat.com/solutions/1257953
LimitNOFILE=50000
Save the file and log out.
----
Operating System: Fedora Linux 41
KDE Plasma Version: 6.3.2
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
Kernel Version: 6.13.5-200.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × 11th Gen Intel® Core™ i7-11850H @ 2.50GHz
Memory: 62.6 GiB of RAM
Graphics Processor: NVIDIA RTX A3000 Laptop GPU/PCIe/SSE2
NVIDIA Driver Version: 570.124.04
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