From: "David S. Miller" <davem@redhat.com>
To: akpm@zip.com.au
Cc: adilger@clusterfs.com, linux-kernel@vger.kernel.org
Subject: Re: ext2 errors w/2.5.x
Date: Mon, 17 Jun 2002 21:17:02 -0700 (PDT) [thread overview]
Message-ID: <20020617.211702.83417250.davem@redhat.com> (raw)
In-Reply-To: <3D0EB3F2.C128F97C@zip.com.au>
From: Andrew Morton <akpm@zip.com.au>
Date: Mon, 17 Jun 2002 21:15:46 -0700
Andreas Dilger wrote:
> On Jun 17, 2002 19:56 -0700, David S. Miller wrote:
> > EXT2-fs error (device sd(8,17)): ext2_find_entry: zero-length directory entry
>
> This would appear to be from accessing a buffer (page) which has not yet
> been read from disk. Otherwise you would have an error from e2fsck also.
> Andrew has been mucking the most in this area...
Not that, I hope. Possibly it's the interaction between
block_write_full_pages's memset outside i_size, truncate and lookup.
It took me a ridiculous amount of time to get that "correct", so
it's a suspicion point. Or possibly locking between lookup and
truncate (rmdir) and/or creat.
Dave, I assume this is with 8k pages and 4k blocks?
Yes, that is the case here.
Is it repeatable enough to conduct a little experiment? Like, lock the page
in ext2_find_entry?
I'll try out your patch and get back to you, thanks.
Franks a lot,
David S. Miller
davem@redhat.com
prev parent reply other threads:[~2002-06-18 4:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-18 2:56 ext2 errors w/2.5.x David S. Miller
2002-06-18 3:25 ` Andreas Dilger
2002-06-18 4:15 ` Andrew Morton
2002-06-18 4:17 ` David S. Miller [this message]
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