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* autofs stops working after a while with USE_MISC_DEVICE
@ 2009-07-02 18:55 Thomas Chan
  2009-07-03  4:40 ` Ian Kent
  0 siblings, 1 reply; 9+ messages in thread
From: Thomas Chan @ 2009-07-02 18:55 UTC (permalink / raw)
  To: autofs


I am using autofs 5.0.4 with the latest patches up to 12-Jun-2009 with 
the 2.6.29.1 kernel.

I noticed that after a while (overnight) new automounts would no longer 
work.

An strace shows:
rt_sigtimedwait(~[CHLD CONT RTMIN RT_1],

[pid 26289] 11:22:57 gettimeofday({1246558977, 61322}, NULL) = 0
[pid 26289] 11:22:57 futex(0x7f6f5db43160, FUTEX_WAKE_PRIVATE, 1) = 0
[pid 26289] 11:22:57 clock_gettime(CLOCK_REALTIME, {1246558977, 61421426}) = 0
[pid 26289] 11:22:57 futex(0x7f6f5db43124, FUTEX_WAIT_PRIVATE, 150501, {0, 999900574}) = -1 ETIMEDOUT (Connection timed out)
[pid 26289] 11:22:58 gettimeofday({1246558978, 61986}, NULL) = 0
[pid 26289] 11:22:58 futex(0x7f6f5db43160, FUTEX_WAKE_PRIVATE, 1) = 0
[pid 26289] 11:22:58 clock_gettime(CLOCK_REALTIME, {1246558978, 62086850}) = 0
[pid 26289] 11:22:58 futex(0x7f6f5db43124, FUTEX_WAIT_PRIVATE, 150503, {0, 999899150}) = -1 ETIMEDOUT (Connection timed out)

lsof shows that automount has 10288 files open, of which most of these 
are like:

automount 15539      root *217u     sock                0,4 
595374 can't identify protocol
automount 15539      root *218u     sock                0,4 
595376 can't identify protocol
automount 15539      root *219u     sock                0,4 
595378 can't identify protocol
automount 15539      root *220u     sock                0,4 
595380 can't identify protocol

Upon restarting autofs, these open files are cleared out and automount 
works, but the open files gradually build up again.

After setting USE_MISC_DEVICE=no, I no longer get the open file issue, but 
we are trying to remedy the autofs lazy unmount / cwd issue.

Any ideas would be appreciated.

Thomas

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2009-07-08  1:04 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-07-02 18:55 autofs stops working after a while with USE_MISC_DEVICE Thomas Chan
2009-07-03  4:40 ` Ian Kent
2009-07-03  5:35   ` Thomas Chan
2009-07-03  8:41     ` Ian Kent
2009-07-03 17:15       ` Thomas Chan
2009-07-04  3:49     ` Ian Kent
2009-07-04  4:32       ` Thomas Chan
2009-07-07 18:20         ` Thomas Chan
2009-07-08  1:04           ` Ian Kent

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