Message-Id: <4.3.2.7.2.20011029231249.036cd228@pop.xs4all.nl>
Date: Mon, 29 Oct 2001 23:17:57 +0100
To: tima@alumni.psu.edu, linux-xfs@oss.sgi.com
From: Seth Mos <knuffie@xs4all.nl>
Subject: Re: XFS corruption
In-Reply-To: <20011029133012.A6980@bud>
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At 13:30 29-10-2001 -0800, Artem Veremey wrote:
>Hi all,
>I have a case of XFS corruption to report.
>
>After poweroff, /dev/hda8 (/home) did not mount - "unknown fs...".
>xfs_repair produces the following results:
>
>xfs_repair /dev/hda8
>Phase 1 - find and verify superblock...
>superblock read failed, offset 370130944, size 2048, ag 4294967295, rval 4
>
>fatal error -- Input/output error
>
>Kernel logged a few dozen errors like this during xfs_repair (that happens 
>with DMA disabled):
>Oct 29 09:56:21 bud kernel: hda: dma_intr: status=0x51 { DriveReady 
>SeekComplete Err
>or }
>Oct 29 09:56:21 bud kernel: hda: dma_intr: error=0x40 { UncorrectableError 
>}, LBAsec
>t=19197740, sector=722913
>Oct 29 09:56:21 bud kernel: end_request: I/O error, dev 03:08 (hda), 
>sector 722913
>
>xfs_check produced many errors too of the following two types:
>block 7/305 expected type unknown got free2
>and
>block 6/22564 expected type free1 got unknown

Your disk is b0rken. (Like so many other IBM drives). Better see your 
retailer since it will probably go _very_ soon.

>Disk (IBM 60GXP 40Gb) seems to be OK (only one partition failed and 
>filling new fs on /dev/hda8 with dd doesn't produce errors)

There is a thorough explanation for this in the FAQ. Sometimes drives only 
start remapping clusters after a reboot or after a too long time. Sometimes 
you run out of spare clusters and you actually get to see this. Get your 
disk replaced imediately. It think it will hold out for a day if you are lucky.

>Machine runs a kernel build from cvs update on Oct 25.
>
>Linux version 2.4.13-xfs-fast (root@bud) (gcc version egcs-2.91.66 
>19990314/Linux (egcs-1.1.2 release)) #1 Thu Oct 25 22:23:37 PDT 2001
>(-fast is just a configuration for specific hardware on that box)
>
>/sbin/xfs_repair -V
>xfs_repair version 1.3.9
>
>MB chipset - ALi Magic1.

Your disk is having problems and not the IDE controller.

>The question is who's fault is that? :)

The disk and mine ofcourse.

Cheers
--
Seth
Every program has two purposes one for which
it was written and another for which it wasn't
I use the last kind.