[Kernel-packages] [Bug 1460985] Re: periodic find task slow ubuntu to death
Seems like it's related to Bug #131094. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460985 Title: periodic find task slow ubuntu to death Status in linux package in Ubuntu: Confirmed Bug description: Periodically something starts 'find' program in the background with readdir smth in options and it slows down ubuntu to the point the music and video got hiccups, mouse lags etc. I suspect it's smth related to package or locatedb updates but can't pinpoint the culprit yet. Anyway, the bugis in slowdown - background tasks should never-ever affect the interactive programs running by user. Ideally they should be started in dedicated, heavily policed systemd slice. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460985/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460985] Re: periodic find task slow ubuntu to death
** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460985 Title: periodic find task slow ubuntu to death Status in linux package in Ubuntu: Confirmed Bug description: Periodically something starts 'find' program in the background with readdir smth in options and it slows down ubuntu to the point the music and video got hiccups, mouse lags etc. I suspect it's smth related to package or locatedb updates but can't pinpoint the culprit yet. Anyway, the bugis in slowdown - background tasks should never-ever affect the interactive programs running by user. Ideally they should be started in dedicated, heavily policed systemd slice. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460985/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460985] Re: periodic find task slow ubuntu to death
The most likely culprit is /etc/cron.daily/man-db ** Changed in: linux (Ubuntu) Status: Incomplete = New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460985 Title: periodic find task slow ubuntu to death Status in linux package in Ubuntu: Incomplete Bug description: Periodically something starts 'find' program in the background with readdir smth in options and it slows down ubuntu to the point the music and video got hiccups, mouse lags etc. I suspect it's smth related to package or locatedb updates but can't pinpoint the culprit yet. Anyway, the bugis in slowdown - background tasks should never-ever affect the interactive programs running by user. Ideally they should be started in dedicated, heavily policed systemd slice. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460985/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460985] Re: periodic find task slow ubuntu to death
The task is started as user 'nobody' but I don't see anything relevant in the logs. What's the best way to find out who's executing it? It might be some root process which drops privileges after start? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460985 Title: periodic find task slow ubuntu to death Status in linux package in Ubuntu: Incomplete Bug description: Periodically something starts 'find' program in the background with readdir smth in options and it slows down ubuntu to the point the music and video got hiccups, mouse lags etc. I suspect it's smth related to package or locatedb updates but can't pinpoint the culprit yet. Anyway, the bugis in slowdown - background tasks should never-ever affect the interactive programs running by user. Ideally they should be started in dedicated, heavily policed systemd slice. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460985/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460985] Re: periodic find task slow ubuntu to death
No, I've got this issue for as long as I can remember. Note: I've removed cron and installed systemd-cron instead but it didn't change anything. Next time I see this issue I'll try to check which processes started it. If I'll figure out a way to trigger it reliably I'll check upstream kernel too. Thanks for looking into this. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460985 Title: periodic find task slow ubuntu to death Status in linux package in Ubuntu: Incomplete Bug description: Periodically something starts 'find' program in the background with readdir smth in options and it slows down ubuntu to the point the music and video got hiccups, mouse lags etc. I suspect it's smth related to package or locatedb updates but can't pinpoint the culprit yet. Anyway, the bugis in slowdown - background tasks should never-ever affect the interactive programs running by user. Ideally they should be started in dedicated, heavily policed systemd slice. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460985/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460985] Re: periodic find task slow ubuntu to death
Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem? Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.1 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as Confirmed. Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc6-unstable/ ** Changed in: linux (Ubuntu) Importance: Undecided = Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460985 Title: periodic find task slow ubuntu to death Status in linux package in Ubuntu: Incomplete Bug description: Periodically something starts 'find' program in the background with readdir smth in options and it slows down ubuntu to the point the music and video got hiccups, mouse lags etc. I suspect it's smth related to package or locatedb updates but can't pinpoint the culprit yet. Anyway, the bugis in slowdown - background tasks should never-ever affect the interactive programs running by user. Ideally they should be started in dedicated, heavily policed systemd slice. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460985/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
