stale POSIX flock

All of lore.kernel.org
 help / color / mirror / Atom feed

* stale POSIX flock
@ 2004-12-28 18:18 Garik E
  2004-12-28 22:28 ` Alan Cox
  0 siblings, 1 reply; 2+ messages in thread
From: Garik E @ 2004-12-28 18:18 UTC (permalink / raw)
  To: linux-kernel

Hello,

I've got a strange bug:
POSIX lock is left in system after process termination.
After some debugging I found that filp->f_count entry at the end of
sys_fctl64 function is 1(???) and subsequent call to fput releases
file sturcture, but leaves POSIX lock.
I've added check for FL_POSIX flag to locks_remove_flock and the problem stoped.
This bug happens very often on my environment, but user mode setup is
a multi-process/multi-threaded application, so I have no clue how to
reduce it to a simple testing program.

I work with enterprise linux 3, IBM xSeries345, Pentium4 3000 x2,  2GB RAM

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: stale POSIX flock
  2004-12-28 18:18 stale POSIX flock Garik E
@ 2004-12-28 22:28 ` Alan Cox
  0 siblings, 0 replies; 2+ messages in thread
From: Alan Cox @ 2004-12-28 22:28 UTC (permalink / raw)
  To: Garik E; +Cc: Linux Kernel Mailing List

On Maw, 2004-12-28 at 18:18, Garik E wrote:
> I work with enterprise linux 3, IBM xSeries345, Pentium4 3000 x2,  2GB RAM

Older 2.4 has some threading problems with lock accounting. If you are
seeing this with Red Hat Enterprise Linux you should raise it with your
support person and/or file it in bugzilla.redhat.com/bugzilla.

Thanks

Alan

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2004-12-28 23:32 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-12-28 18:18 stale POSIX flock Garik E
2004-12-28 22:28 ` Alan Cox

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.