[kwin] [Bug 470898] resource leak: the number of threads increases over time, boundlessly
https://bugs.kde.org/show_bug.cgi?id=470898 --- Comment #3 from Julien Muchembled --- Created attachment 159609 --> https://bugs.kde.org/attachment.cgi?id=159609=edit strace output just after kwin_x11 has started During the capture, I used mpv and went/left fullscreen twice. If I look at correctly, leaked threads are stuck at a futex syscall so it may not be useful. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 470898] resource leak: the number of threads increases over time, boundlessly
https://bugs.kde.org/show_bug.cgi?id=470898 --- Comment #2 from Julien Muchembled --- (In reply to David Edmundson from comment #1) > How did you see how many threads were being used? With `ls |wc -l` within the `/proc//task/` folder of kwin_x11 process. > Could you reproduce this with firefox going fullscreen and back? No issue with Firefox. I even tried a youtube video. BTW, I only mentioned mpv as an example but there's also vlc. To get more information, I can try patches against 4.27.5 if you have any. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 470898] New: resource leak: the number of threads increases over time, boundlessly
https://bugs.kde.org/show_bug.cgi?id=470898 Bug ID: 470898 Summary: resource leak: the number of threads increases over time, boundlessly Classification: Plasma Product: kwin Version: 5.27.5 Platform: Debian stable URL: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1037 268 OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: platform-x11-standalone Assignee: kwin-bugs-n...@kde.org Reporter: j...@jmuchemb.eu Target Milestone: --- SUMMARY After 17 days, the number of threads of /usr/bin/kwin_x11 process has exceeded 2700 and it keeps increasing. At the beginning of a session, the process starts with 34 threads. I could find that such leak happens when viewing videos fullscreen e.g. with mpv. More precisely, when exiting fullscreen. I found the issue because I configure a nproc limit to protect against fork-bombs. STEPS TO REPRODUCE 1. start mpv without --fs -> thread count does not change 2. switch to fullscreen -> usually -2 threads 3. leaves fullscreen -> usually +17 threads 4. exit mpv -> thread count does not change ADDITIONAL INFORMATION - Version 4:5.27.2 was affected too. I previously used 4:5.24.4 and I'm almost sure it had no leak or it was not as severe. - I do have a 4k intel display. - I was unable to reproduce the issue inside qemu (didn't try 4k though, only FHD). - I found that the number of threads (initially & how fast it increases) depends on the number of CPU. I have a i7-1260P (16 entries in /proc/cpuinfo). - kwin_wayland is not affected. And wayland also fixes display corruption I had with X11 (regularly, for less than 1s). -- You are receiving this mail because: You are watching all bug changes.
[kruler] [Bug 36100] alternate units of measurement for kruler (inches)
https://bugs.kde.org/show_bug.cgi?id=36100 Julien Muchembled changed: What|Removed |Added CC||j...@jmuchemb.eu -- You are receiving this mail because: You are watching all bug changes.
[plasmashell] [Bug 341143] Wallpaper on every desktop is gone.
https://bugs.kde.org/show_bug.cgi?id=341143 Julien Muchembled <j...@jmuchemb.eu> changed: What|Removed |Added CC||j...@jmuchemb.eu -- You are receiving this mail because: You are watching all bug changes.
