Re: Sysrq+B doesn't work on my box

From: Zdenek Kabelac
Date: Fri Aug 01 2008 - 16:25:31 EST


2008/8/1 Zdenek Kabelac <zdenek.kabelac@xxxxxxxxx>:
> 2008/8/1 Alistair John Strachan <alistair@xxxxxxxxxxxxx>:
>> On Friday 01 August 2008 10:54:19 Zdenek Kabelac wrote:
>>> 2008/7/31 Jeremy Fitzhardinge <jeremy@xxxxxxxx>:
>>> > Zdenek Kabelac wrote:
>>> I'll probably try to bisect rc.sysinit script to check what is the
>>> first command
>>> that breaks the reboot - but if there is any idea what should I test
>>> first.?
>>
>> Are you using modules? Maybe a driver is loaded and this upsets the BIOS
>> somehow? If that was the case, the driver wouldn't be loaded in an
>> init=/bin/sh situation, as you described before.
>>
>
>
> Yes - except as I've checked the exactly same modularized kernel
> running Debian on the same box
> has no boot problem.

Ok - idea with checking loaded modules was actually the right way to a
very quick discovery that KVM loaded in my Fedora are the source of
troubles - without them the second mystery is also a history :)

So - is it normal, that loaded KVM modules eliminate emergency reboot
(bug or feature)?

Zdenek
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