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Re: Indy and the multiple disk problem

To: Karel van Houten <K.H.C.vanHouten@research.kpn.com>
Subject: Re: Indy and the multiple disk problem
From: Klaus Naumann <spock@mgnet.de>
Date: Wed, 18 Apr 2001 19:41:28 +0200 (CEST)
Cc: linux-mips@oss.sgi.com
In-reply-to: <200104181621.SAA06516@sparta.research.kpn.com>
Sender: owner-linux-mips@oss.sgi.com
On Wed, 18 Apr 2001, Karel van Houten wrote:

> The setup:
> Root FS on /dev/sda1, /local on /dev/sdb3, and some NFS mounted systems.
> Kernel 2.4.2 (March 30 CVS).
> 
> Doing this:
> I mke2fs-ed the sdb3 partition, mounted it at /local, and copied
> a tree from an NFS filesystem to /local. No other activity on the system.
> I used tar | (cd;tar) for the copy.
> 
> What happened:
> I tried to 'su' in another window on the machine, and it responded
> with a segfault. Several other programs reacted with segfaults or
> bus errors. 
> 
> I stopped the copy, synced, and fsck-ed (-n) the local partitions.
> No problems on the /local partition, but the root was badly corrupted.
> Hey! That's strange, I didn't do anything on that partition!

You did. At the time when you opened your other terminal and
typed su you were reading and writing to the partition.
I have observed this behaviour too.
So in fact you're still hitting the same problem - but
it's very aggressive on your side.

                Bye, Klaus

-- 
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