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Date: Mon, 3 May 2004 22:34:19 +0100
From: viro@parcelfarce.linux.theplanet.co.uk
To: Rene Herman <rene.herman@keyaccess.nl>
Cc: Linus Torvalds <torvalds@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [RFC] removal of legacy cdrom drivers (Re: [PATCH] mcdx.c insanity removal)
Message-ID: <20040503213419.GH17014@parcelfarce.linux.theplanet.co.uk>
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On Mon, May 03, 2004 at 11:22:24PM +0200, Rene Herman wrote:
> viro@parcelfarce.linux.theplanet.co.uk wrote:
> 
> >>However, any "cp" from cd-rom oopses the box.
> >
> >oopses in driver, oopses by triggering BUG() or oopses in fs/*?  The last
> >two would be more interesting - isofs _MUST_ be able to survive any IO
> >errors, simply because CDs get scratched, etc. and that shouldn't crash
> >the box.
> 
> Doesn't actually look all driver. The CD is good; works fine in this 
> same drive with its own 2.0 kernel (and on other drives). Please note, 
> this is a 386. Memory is good. dmesg and .config attached.
> 
> Very long crash, but in case it's helpful. Happens when copying anything 
> from the sbpcd CD-ROM. In between the "do_exit, do_divide_error, 
> do_page_fault, do_page_fault" oopses it seems to be attempting to give 
> me back a prompt (it's not succeeding).

Almost certainly a driver-induced memory corruption.