From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Chris Rankin <cj.rankin@ntlworld.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: linux-2.4.19-pre9-ac3: PnPBIOS crash
Date: 01 Jun 2002 01:00:47 +0100 [thread overview]
Message-ID: <1022889647.20348.16.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <200205312208.g4VM8unD001714@twopit.underworld>
On Fri, 2002-05-31 at 23:08, Chris Rankin wrote:
> I have a dual PIII machine with 1.25 GB of RAM, and I have just
> installed a 2.4.19-pre9-ac3 kernel. (I also have ALSA CVS and lm
> sensors 2.6.3 installed.)
>
> Anyway, I decided to compile in the PNPBIOS feature and discovered
> that:
>
> # cat /proc/bus/pnp/escd
>
> is a synonym for "cold reboot". Now I understand that *writing* to
> random /proc files is a Bad Thing, but reading them??? I would have
> thought that the worst I could have done would have been corrupting my
> termininal. Is the escd file my actual ESCD area?
>
> Is this a bug, or just a case of "don't do that!"?
Could be either. It should dump the ESCD by asking the BIOS for it. It
could be there is a case we are calling wrong, could be a BIOS bug where
the BIOS can't handle BIOS32 ESCD
Alan
prev parent reply other threads:[~2002-05-31 22:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-31 22:08 Chris Rankin
2002-06-01 0:00 ` Alan Cox [this message]
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