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From: Steve Lord <lord@xfs.org>
To: Mihai RUSU <dizzy@roedu.net>
Cc: linux-xfs@oss.sgi.com, linux-kernel@vger.kernel.org
Subject: Re: kernel BUG at fs/xfs/support/debug.c:106!
Date: Wed, 10 Dec 2003 07:42:20 -0600	[thread overview]
Message-ID: <3FD722BC.1000205@xfs.org> (raw)
In-Reply-To: <Pine.LNX.4.56L0.0312100953310.8346@ahriman.bucharest.roedu.net>

Mihai RUSU wrote:

>-----BEGIN PGP SIGNED MESSAGE-----
>Hash: SHA1
>
>Hi
>
>Another problem now, on another system. This one is a 2xP3 1.1 Ghz, 3 GB 
>RAM, MB Intel SCB2, Adaptec 7899 Controller onboard having one 18 GB SCSI 
>disk connected to it (for XFS external journal, swap and / partition which 
>is on ext3), Mylex 170 RAID connected to external storage enclosure with 3 
>x 70 GB SCSI RAID5. The kernel error message is:
>
>  
>

Mihai,

You missed one thing out of your report, the console message xfs output 
before
this.

I suspect it would have been this: xfs_iget_core: ambiguous vns: vp/0x .....
but it would be good to confirm it. This was supposed to be a dead code
path which there was no longer a route to, it is possible something in the
NFS interface in 2.6 has changed to cause this though. Basically a race
between two threads looking up the same inode, xfs has it cached already
and two threads raced to setup the mapping from the linux inode.

The use of iget_locked when looking up new inodes is supposed to protect
against just this condition.

Steve



  reply	other threads:[~2003-12-10 13:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-10  8:18 kernel BUG at fs/xfs/support/debug.c:106! Mihai RUSU
2003-12-10 13:42 ` Steve Lord [this message]
2003-12-10 13:56   ` Mihai RUSU

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