2006-11-01 08:25:11

by Martin Lorenz

[permalink] [raw]
Subject: 2.6.18/Reiser3 - lost directory and strange warnings

panic arose about an hour ago...
a whole directory tree was suddenly gone and every try to access it resulted
in an i/o error

the log shows this:

[53933.922000] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[53933.926000] ata1.00: configured for UDMA/100
[53934.007000] SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
[53934.014000] sda: Write Protect is off
[53934.014000] sda: Mode Sense: 00 3a 00 00
[53934.022000] SCSI device sda: drive cache: write back
[54316.760000] ReiserFS: warning: is_tree_node: node level 0 does not match to the expected one 1
[54316.760000] ReiserFS: sda8: warning: vs-5150: search_by_key: invalid format found in block 2326540. Fsck?
[54316.760000] ReiserFS: sda8: warning: zam-7001: io error in reiserfs_find_entry
[54341.302000] ReiserFS: warning: is_tree_node: node level 0 does not match to the expected one 1
[54341.302000] ReiserFS: sda8: warning: vs-5150: search_by_key: invalid format found in block 2326540. Fsck?
[54369.880000] ReiserFS: warning: is_tree_node: node level 0 does not match to the expected one 1
[54369.880000] ReiserFS: sda8: warning: vs-5150: search_by_key: invalid format found in block 2326540. Fsck?
[54505.683000] ReiserFS: warning: is_tree_node: node level 0 does not match to the expected one 1
[54505.683000] ReiserFS: sda8: warning: vs-5150: search_by_key: invalid format found in block 2326540. Fsck?

a reboot into maintainance mode and fsck of the partition brought the dir
back without data loss (pffffew!)

but I am still concerned, what has happened here?

a grep on my syslogs revealed quite a few similar warnings which I obviously
diden't notice. - attached wich a few lines of context

see http://www.lorenz.eu.org/~mlo/kernel/?C=M;O=D for more


gruss
mlo
--
Dipl.-Ing. Martin Lorenz

They that can give up essential liberty
to obtain a little temporary safety
deserve neither liberty nor safety.
Benjamin Franklin

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2006-11-01 15:38:32

by Phillip Susi

[permalink] [raw]
Subject: Re: 2.6.18/Reiser3 - lost directory and strange warnings

Martin Lorenz wrote:
> panic arose about an hour ago...
> a whole directory tree was suddenly gone and every try to access it resulted
> in an i/o error
>
> the log shows this:

<snip>

>
> a reboot into maintainance mode and fsck of the partition brought the dir
> back without data loss (pffffew!)
>
> but I am still concerned, what has happened here?
>

Your partition was damaged.

> a grep on my syslogs revealed quite a few similar warnings which I obviously
> diden't notice. - attached wich a few lines of context

Check for disk IO errors, and you also might want to run badblocks
and/or the smartmontools on the device to check for hardware errors.
Also a memtest86 for a few hours to rule out corrupted ram.

>
> see http://www.lorenz.eu.org/~mlo/kernel/?C=M;O=D for more
>
>
> gruss
> mlo
> --
> Dipl.-Ing. Martin Lorenz
>
> They that can give up essential liberty
> to obtain a little temporary safety
> deserve neither liberty nor safety.
> Benjamin Franklin
>
> please encrypt your mail to me
> GnuPG key-ID: F1AAD37D
> get it here:
> http://blackhole.pca.dfn.de:11371/pks/lookup?op=get&search=0xF1AAD37D
>
> ICQ UIN: 33588107
>