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Re: File corruption

To: Ralf Baechle <>
Subject: Re: File corruption
From: Ulf Carlsson <>
Date: Wed, 23 Jun 1999 01:49:23 +0200
In-reply-to: <>; from Ralf Baechle on Tue, Jun 22, 1999 at 03:21:45PM +0200
Mail-followup-to: Ralf Baechle <>,
References: <> <>
On Tue, Jun 22, 1999 at 03:21:45PM +0200, Ralf Baechle wrote:
> On Tue, Jun 22, 1999 at 03:29:00AM +0200, Ulf Carlsson wrote:
> > This is *really* annoying, I can't do anything without getting interrupted
> > by some bug on the Indy.  I can't stand this file corruption.  I just lost
> > an entire directory.  This isn't because of crashes, stuff just vanish, or
> > gets corrupted without any reason.  I for example had a gzipped patch, I
> > decompressed it and I got a lot of junk in the middle of the file.
> Question, is this effect repeatable, that is if you decompress the file a
> second time, will you still see the filesystem corruption?  The latter would
> mean that the data decompressed data get corrupted on the fly and the SCSI
> driver isn't involved.  Or does the gzip'ed file itself already contain the
> corrupted data?

Since the file is decompressed without warnings I assume that the scp went fine.
Anyhow, when I had decompressed the file I got corruption in the middle of the
patch.  The corruption affected only a couple of lines, 10 or so.

The problems I experience are not repeatable.  Everything went smooth after a
reboot.  I usually reboot the machine when it's messing with me, that helps.  At
least for a while.

> And under which kernel version did this start to happen?

2.2.1 I think.

> Could you resend me your hinv output?

Unfortunately I don't have IRIX.  However, I have a 133 MHz R4600 CPU with 512 k
board cache.  I have two 1 Gb SCSI driver connected.

> > Earlier today the cached version of /lib/ was corrupted
> > or something, and corrupted ELF headers were reported.  A reboot fixed that
> > one.
> It seems that you observe similar problems like me.  For me however the
> problem has just vanished and was rare anyway.

They're rare for me as well, but I've had a couple in just a few days now.
Maybe the file corruption became heavier since 2.3.6?

> I understand that very well.  Btw, I started to store important stuff on NFS.

I can't stand NFS. Files, or entire directories vanish from ls, but I may still
open them if I specify their names directly.  I think I've been talking to you
about this before.

- Ulf

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