Corrupt reiser3 fs

[Paul Gear <paul@gear.dyndns.org>]

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Hi folks,

After filling my reiserfs with backups, i ended up with a corrupt
filesystem.  I'm running Debian 3.1 (sarge), kernel 2.6.8-2-k7, and
reiserfsprogs 3.6.19-1.

I don't care about this filesystem and will just recreate it, but i
thought i'd offer folks the opportunity to debug before i trash it.

Here's my fsck output with all the noise cut out:

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enoch:/tmp # fsck.reiserfs --rebuild-tree /dev/hdc1
...
111392 directory entries were hashed with "r5" hash.
        "r5" hash is selected
Flushing..finished
        Read blocks (but not data blocks) 19333032
                Leaves among those 32365
                        - corrected leaves 35
                        - leaves all contents of which could not be
saved and deleted 5
                pointers in indirect items to wrong area 25647 (zeroed)
                Objectids found 104921

Pass 1 (will try to insert 32360 leaves):
####### Pass 1 #######
Looking for allocable blocks .. finished
0%....20%....40%....60%...                                  left 8239,
234 /sec
The problem has occurred looks like a hardware problem (perhaps
memory). Send us the bug report only if the second run dies at
the same place with the same block number.

build_the_tree: Nothing but leaves are expected. Block 10905053 - unknown

Aborted

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Kernel messages reported during this fsck are as follows:

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ReiserFS: hdc1: found reiserfs format "3.6" with standard journal
ReiserFS: hdc1: using ordered data mode
ReiserFS: hdc1: journal params: device hdc1, size 8192, journal first
block 18, max trans len 1024, max batch 900, max commit age 30, max
trans age 30
ReiserFS: hdc1: checking transaction log (hdc1)
ReiserFS: warning: is_tree_node: node level 0 does not match to the
expected one 65534
ReiserFS: hdc1: warning: vs-5150: search_by_key: invalid format found in
block 0. Fsck?
ReiserFS: hdc1: warning: vs-13070: reiserfs_read_locked_inode: i/o
failure occurred trying to find stat data of [1 2 0x0 SD]
ReiserFS: hdc1: Using r5 hash to sort names
ReiserFS: warning: is_tree_node: node level 0 does not match to the
expected one 65534
ReiserFS: hdc1: warning: vs-5150: search_by_key: invalid format found in
block 0. Fsck?
ReiserFS: hdc1: warning: vs-2140: finish_unfinished: search_by_key
returned -2

---------8<----------------------------------------

There is no problem with memory (my other two hard disks and all of my
desktop programs are working fine), or, to my knowledge, the hard disk
or cable (since i can do a full dd of the hard disk to /dev/null).

Anyone interested in taking a look at it, or should i just write it off
as stray gamma rays from Saturn and trash it?  :-)

-- 
Paul
<http://paulgear.webhop.net>
--
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