From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Jan Engelhardt <jengelh@computergmbh.de>
Cc: "Jörg Hoffmann" <jh2000@root24.eu>, linux-kernel@vger.kernel.org
Subject: Re: [Patch] panic.c
Date: Sun, 5 Aug 2007 22:14:28 +0200 [thread overview]
Message-ID: <20070805201428.GA18654@osiris.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0708051731050.29913@fbirervta.pbzchgretzou.qr>
> >The idea behind this is to keep the power usage on panic’d machines
> >(without auto-reboot) low. Another point is in an Virtual Machine
> >environment the process of the VM is using 100% of the host-cpu. This
> >would stuck other programs or VMs. This patch brings the VM to stop and
> >keeps the cpu usage below 1%.
For VM environments it would be better to have an interface that tells
the hypervisor that your guest is dead. That's what the disabled_wait()
line in panic() is good for on s390.
prev parent reply other threads:[~2007-08-05 20:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-05 15:28 [Patch] panic.c Jörg Hoffmann
2007-08-05 15:35 ` Jan Engelhardt
2007-08-05 20:14 ` Heiko Carstens [this message]
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