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Re: XFS assertion from truncate. (3.10-rc2)

To: Dave Jones <davej@xxxxxxxxxx>, Linux Kernel <linux-kernel@xxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
Subject: Re: XFS assertion from truncate. (3.10-rc2)
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Wed, 22 May 2013 09:34:29 +1000
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20130521225257.GA12713@xxxxxxxxxx>
References: <20130521225257.GA12713@xxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Tue, May 21, 2013 at 06:52:57PM -0400, Dave Jones wrote:
> [  464.210598] XFS: Assertion failed: (mask & 
> (ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET| 
> ATTR_MTIME_SET|ATTR_KILL_SUID|ATTR_KILL_SGID| ATTR_KILL_PRIV|ATTR_TIMES_SET)) 
> == 0, file: fs/xfs/xfs_iops.c, line: 719

Never seen that fire before, but this is why we have ASSERT()s like
this - we're being handed something by the VFS we don't expect...

Can you give me some context of the file permissions before the
syscall and what the syscall parameters are? i.e. is this likely to
be trying to strip SUID/SGID during the truncate operation?

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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