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From: Olaf Kirch <okir@suse.de>
To: Greg Banks <gnb@melbourne.sgi.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>,
	Linux NFS Mailing List <nfs@lists.sourceforge.net>
Subject: Re: [PATCH] SGI 882960: Busy inodes after unmount, oops
Date: Wed, 4 Feb 2004 11:42:25 +0100	[thread overview]
Message-ID: <20040204104225.GI20323@suse.de> (raw)
In-Reply-To: <40209B6D.56ED461E@melbourne.sgi.com>

Hi Greg,

On Wed, Feb 04, 2004 at 06:12:45PM +1100, Greg Banks wrote:
> This patch fixes a bug where the forced killing of pending asynchronous
> unlink rpc_tasks during unmount leaks inode reference counts for the
> parent of the silly-renamed file and all its ancestor directories,
> resulting in the message 
> 
> VFS: Busy inodes after unmount. Self-destruct in 5 seconds.  Have a nice day...

Finally! This bug was driving me nuts. I wasn't even able to reproduce
this under lab conditions :-/

> The first part makes sure that dput() will unhash and kill dentries
> and their parents if called while the unmount is underway.
> 
> The second part moves the dput() call from the tk_exit callback of
> the async unlink rpc_task to the tk_release callback so that it
> will be called if the rpc_task is killed by rpc_killall_tasks()
> instead of completing normally.

Yes, that looks as if this could fix the problem.

Thanks again,
Olaf
-- 
Olaf Kirch     |  Stop wasting entropy - start using predictable
okir@suse.de   |  tempfile names today!
---------------+ 


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  reply	other threads:[~2004-02-04 10:47 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-04  7:12 [PATCH] SGI 882960: Busy inodes after unmount, oops Greg Banks
2004-02-04 10:42 ` Olaf Kirch [this message]
2004-02-04 22:59   ` Greg Banks
2004-02-04 12:09 ` Olaf Kirch
2004-02-04 22:41   ` Greg Banks
2004-02-05 16:15     ` Olaf Kirch
2004-02-05 22:23       ` Greg Banks
2004-02-06  5:50         ` Greg Banks
2004-02-13 16:26           ` canon
2004-02-04 14:24 ` raven
2004-02-04 22:56   ` Greg Banks
2004-02-05 12:40 ` James Pearson
2004-02-09  7:46   ` Greg Banks

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