[Bug 426932] Re: gvfs-trashd and gnome-settings-daemon enter infinite loop on /proc/mounts

[Jorenko]

I just saw something very like this in 12.04. I have two samba shares
mounted via gvfs, but neither has very many users; at most a half dozen
simultaneous at peak times. Killing the gnome-settings-daemon process
returned CPU usage to normal and the shares are still functional.

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https://bugs.launchpad.net/bugs/426932

Title:
  gvfs-trashd and gnome-settings-daemon enter infinite loop on
  /proc/mounts

Status in “glib2.0” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: gvfs

  On jaunty (sorry but that's on a production system and quite hard to
  test on Karmic) with an application server having around 80 users
  logged in and working on a gnome session for a few hours, gvfsd-trash
  and gnome-settings-daemon suddenly start taking all the CPU making the
  load to jump to around 8 (on a dual-quadcore) to over 250 making
  everything slow as hell.

  Doing a strace on one of the buggy process, I get the following trace: http://paste.ubuntu.com/268054/
  That trace is from a gvfs-trashd process, the same loop on /proc/mounts happen with gnome-settings-daemon.

  The server had 80 users logged in, each with a regular gnome session
  including gvfs running and a few network shares mounted using cifs,
  ncpfs and sshfs.

  I haven't been able to find a reliable way to reproduce the issue other than waiting for a few hours with over 50 users.
  I'm available for any kind of additional data you may need, although as it's a production server, I won't be able to provide certain information and will probably need to anonymise some. I'm also interested on a way to reproduce that on a regular desktop installation.

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