From: "H. Peter Anvin" <hpa@zytor.com>
To: Jim Paris <jim@jtan.com>
Cc: Terje Kvernes <terjekv@math.uio.no>, linux-raid@vger.kernel.org
Subject: Re: filesystem corruption with RAID6.
Date: Fri, 03 Sep 2004 11:19:18 -0700 [thread overview]
Message-ID: <4138B5A6.7070304@zytor.com> (raw)
In-Reply-To: <20040903170627.GA11021@jim.sh>
Jim Paris wrote:
>> I've recently started testing RAID6
>
> ..
>
>> I get a lot of I/O errors while reading from the recently
>> populated filesystem. I've removed the LVs, tested different
>> filesystems (ext3, reiserfs) but the errors always show in the
>> same way.
>
>
> The RAID6 code has problems. The author, H. Peter Anvin, has verified
> this corruption, but there's no fix available yet.
>
> -jim
Note: the corruption Jim found and which I have confirmed are only when doing
large number of writes to a filesystem in degraded mode. If you see something
different, please let me know. It would definitely help tracking this down.
The bug is elusive enough that it's difficult :-/
-hpa
next prev parent reply other threads:[~2004-09-03 18:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-03 12:20 filesystem corruption with RAID6 Terje Kvernes
2004-09-03 17:06 ` Jim Paris
2004-09-03 18:19 ` H. Peter Anvin [this message]
2004-09-03 20:27 ` Terje Kvernes
2004-09-03 21:16 ` H. Peter Anvin
2004-09-04 22:43 ` Terje Kvernes
2004-09-05 3:01 ` H. Peter Anvin
2004-09-05 12:32 ` Terje Kvernes
2004-09-03 17:15 ` Guy
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