https://bugs.kde.org/show_bug.cgi?id=496746
Bug ID: 496746
Summary: kwin_wayland crash with amdgpu+nouveau for file
descript
Classification: Plasma
Product: kwin
Version: 6.2.3
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: generic-crash
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 176162
--> https://bugs.kde.org/attachment.cgi?id=176162&action=edit
tools to log the activity of file descriptor for kwin_wayland, just run it and
wait until exit. in the cwd of the tool are been created loggerOut_poll.txt and
loggerOut_ioctl.txt, which are the logs
***
If you're not sure this is actually a bug, instead post about it at
https://discuss.kde.org
If you're reporting a crash, attach a backtrace with debug symbols; see
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
Please remove this comment after reading and before submitting - thanks!
***
SUMMARY
while using kde in wayland with two gpu and two monitor (one amd(amdgpu) and
one nvidia(nouveau) only for use the second monitor, I refuse to use the nvidia
one as primary because is good only for a display adapter and i don't switch
back to 1 monitor after years of using two monitor, one monitor for gpu) i
noticed repetitive crashing for file descriptor, i increased it, but nothing
changed, after investigating a while i noticed that kwin continue spawning fd
in POLLIN, most of it are use 1 or 2 times, and are leaved opened. This only
happen when i'm using as primary gpu the amd one, while i'm using the nvidia
kwin_wayland doesn't continue spawning file descriptor
STEPS TO REPRODUCE
Install amdgpu, nouveau
use amdgpu as primary gpu (both amdgpu and nouveau enabled, altroutgh it's work
fine)
start KDE with wayland
use the pc for daily use (to accelerate the crash, it's recommended to open a
game)
OBSERVED RESULT
file descriptor constant increase while using the pc and after a few hours
reaching more than 100k fd and kwin_wayland crash + increase memory usage over
time
EXPECTED RESULT
kwin_wayland don't continue opening fd, like when the nouveau gpu is set as
primary one
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.12.1-arch1-1 (64-bit)
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0
ADDITIONAL INFORMATION
nov 26 21:44:38 archlinux kwin_wayland[263153]: gbm_bo_get_fd_for_plane()
failed: Too many open files
nov 26 21:44:38 archlinux kwin_wayland[263153]: kwin_screencast: "" Could not
connect to stream
nov 26 21:44:38 archlinux kwin_wayland[263153]: kwin_screencast: "" Failed to
create PipeWire stream
nov 26 21:44:38 archlinux plasmashell[263149]: error creating screencast
"Failed to create PipeWire stream"
nov 26 21:44:39 archlinux kwin_wayland_wrapper[263153]: file descriptor
expected, object (122), message add(huuuuu)
nov 26 21:44:39 archlinux kwin_wayland_wrapper[263153]: error in client
communication (pid 263153)
nov 26 21:44:39 archlinux kwin_wayland_wrapper[263192]: XWAYLAND: wl_display#1:
error 1: invalid arguments for zwp_linux_buffer_params_v1#122.add
nov 26 21:44:39 archlinux kwin_wayland_wrapper[263192]: (EE) failed to dispatch
Wayland events: Invalid argument
nov 26 21:44:39 archlinux kwin_wayland[263153]: kwin_xwl: The X11 connection
broke (error 1)
below i attach the pyhon tool that i created to analyze the fd poll IO status
--
You are receiving this mail because:
You are watching all bug changes.
