Message-ID: <4459F757.8070408@tls.msk.ru>
Date: Thu, 04 May 2006 16:45:11 +0400
From: Michael Tokarev <mjt@tls.msk.ru>
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To: Herbert Rosmanith <kernel@wildsau.enemy.org>
CC: linux-kernel@vger.kernel.org
Subject: Re: cdrom: a dirty CD can freeze your system
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Herbert Rosmanith wrote:
> good day,
> 
> kernel-version: 2.6.16.13 preemptible
> 
> I've been experimenting with damaged CDs this day. I observed that
> a dirty or (partly) unreadable CD will (1) block the process which is
> trying to read from the CD - it will be in state "D" - uninterruptible
> sleep and (2) sometimes(?) probably freeze your system such that even
> a manual reboot wont work (e.g., because it's not possible to log in, or
> keystrokes are no longer accepted) and a power-cycle is required.
> 
> the uninterruptible process will force a reboot - it wont go away.

It's worse than that.  See http://marc.theaimsgroup.com/?t=114003595500002&r=1&w=2
and other similar reports.  So far, noone cares it seems (for several years already).

/mjt
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