Subject: Re: amd64 reboot when using acpi
To: Chavdar Ivanov <>
From: Brett Lymn <>
List: current-users
Date: 06/20/2007 20:16:12
On Wed, Jun 20, 2007 at 11:30:55AM +0100, Chavdar Ivanov wrote:
> Disabling ehci fixes the problem; ACPI seems to work.

That actually makes sense - it seems to be IRQ 7 that is causing an
interrupt storm.  I am thinking perhaps it has something to do with
the message about forcing the bios to give up possession of the
device.  I did try checking for and ack'ing interrupts on the ehci
device when forcing it out of the BIOS's clutches but that didn't seem
to help any.  The other thing I was going to try was tweaking the bios
to reserve IRQ 7 just to see of the problem persisted.

Brett Lymn