Date: Wed, 18 Jul 2001 09:26:32 -0700
From: Sam Thompson <samuelt@caltech.edu>
To: "Vladimir V. Saveliev" <monstr@namesys.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ReiserFS / 2.4.6 / Data Corruption
Message-ID: <20010718092632.A2001@caltech.edu>
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	linux-kernel@vger.kernel.org
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I should have checked this first, but you were right. Memtest86 revealed I had a bad memory module. When I replaced it, everything began running flawlessly. I've been running for several hours with no problems.

Thank you very much,
Sam

* Vladimir V. Saveliev (monstr@namesys.com) wrote:
> Hi
> 
> If you are able to get a problem easily - would you mind to start with 
> simple hardware checking (just to ):
> does your CPU's cooler rotate?
> is CPU temperature ok?
> check memory with some tool
> 
> Thanks,
> vs
> 
> 
> > 
> > Sam Thompson wrote:
> > 
> >> First, please CC all replies to samuelt@caltech.edu, as I am not on the mailing list.
> >> 
> >> The other day a computer of mine lost power and the ext2 fs was severely damaged
> >> . I decided to reinstall debian using reiserfs to prevent this. I had no problems with installation, (I've done this same install on other computers) but as I started to untar backup tarballs I had made, I started noticing problems with what I believe is the filesystem.
> >> 
> >> Tar/gzip will complain about crc errors in files: for example in a certain 40 mb file I can decompress fine on other computers. If I try to uncompress the same file immediately, it will fail at a different point, seemingly at random. Sometimes it works fine. Random debian packages I apt-get have the same problem. Sometimes they won't unpack properly, sometimes they will.
> >> 
> >> I tried reinstall gzip several times, but I don't think the problems are limited to compressed files, just very obvious in critical situations like that.
> >> 
> >> I can get complex software to run: xfree86 4.1, mozilla, etc, fine, although som
> >> e files apparently go missing in some programs.
> >> 
> >> Just now I got the following error message when deleting a tarball:
> >> 
> >> vs-4080: reiserfs_free_block: free_block (0301:672040)[dev:blocknr]: bit already
> >>  cleared
> >> 
> >> Next, I took the hard drive to my other, stable computer and ran reiserfsck --rebuild-tree on it, under the hopes that this would fix it. It did appear to fix it, but about 10 minutes later the symptoms came back.
> >> 
> >> Here is 'debugreiserfs /dev/hda1' output:
> >> 
> >> Super block of format 3.5 found on the 0x3 in block 16
> >> Block count 4233112
> >> Blocksize 4096
> >> Free blocks 3900694
> >> Busy blocks (skipped 16, bitmaps - 130, journal blocks - 8193
> >> 1 super blocks, 324078 data blocks
> >> Root block 8529
> >> Journal block (first) 18
> >> Journal dev 0
> >> Journal orig size 8192
> >> Filesystem state ERROR
> >> Tree height 4
> >> Hash function used to sort names: "tea"
> >> Objectid map size 62, max 1004
> >> Version 0
> >> 
> >> Here is my relevant hardware:
> >> 
> >> Motherboard: Asus A7V KT133 with 686A southbridge (NOT the 686B).
> >> Harddrive: 30 gig ide maxtor/generic.
> >> 
> >> I installed 2.4.6 to try and fix the problem, it didn't seem to help, although I do not clearly remember the difference between 2.2.17-patched and 2.4.6 in terms of the symptoms.
> >> 
> >> I tried reinstalling once, but that did not help.
> >> 
> >> I'm at a loss as to how to proceed. Any ideas?
> >> 
> >> Thank you for your time,
> >> 
> >> Sam
> >> ---
> >> samuelt@caltech.edu
> >> -
> >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> > 
> 
> 
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