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Re: open sleeps

To: Brian May <brian@xxxxxxxx>
Subject: Re: open sleeps
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Thu, 19 Jun 2008 04:43:11 -0400
Cc: xfs@xxxxxxxxxxx
In-reply-to: <4859FF40.8010206@xxxxxxxx>
References: <4859EE54.6050801@xxxxxxxx> <20080619062118.GY3700@disturbed> <4859FF40.8010206@xxxxxxxx>
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Mutt/1.5.17 (2007-11-01)
On Thu, Jun 19, 2008 at 04:40:00PM +1000, Brian May wrote:
> Does the following help? I still have the logs of the other processes, if 
> required (just in case it is some weird interaction between multiple 
> processes?)
>
> It seems to be pretty consistent with lock_timer_base, every time I look 
> (assuming I haven't read the stack trace upside down...).
>
> Jun 19 16:33:30 hq kernel: grep          S 00000000     0 12793  12567        
>              (NOTLB)
>
> Jun 19 16:33:30 hq kernel:        f0c23e7c 00200082 000a1089 00000000 
> 00000010 00000008 cd0db550 dfa97550 
> Jun 19 16:33:30 hq kernel:        34f84262 00273db2 0008a1dc 00000001 
> cd0db660 c20140a0 dfe1cbe8 00200286 
> Jun 19 16:33:30 hq kernel:        c0125380 a4dbf26b dfa6a000 00200286 
> 000000ff 00000000 00000000 a4dbf26b 
> Jun 19 16:33:30 hq kernel: Call Trace:
>
> Jun 19 16:33:30 hq kernel:  [<c0125380>] lock_timer_base+0x15/0x2f
>
> Jun 19 16:33:30 hq kernel:  [<c027f960>] schedule_timeout+0x71/0x8c
>
> Jun 19 16:33:30 hq kernel:  [<c0124a81>] process_timeout+0x0/0x5
>
> Jun 19 16:33:30 hq kernel:  [<c016c801>] __break_lease+0x2a8/0x2b9

That's the lease breaking code in the VFS, long before we call
into XFS.  Looks like someone (samba?) has a least on this file and
we're having trouble having it broken.  Try sending a report about
this to linux-fsdevel@xxxxxxxxxxxxxxx


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