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SubjectRe: [RFC PATCH 26/35] Add Xen subarch reboot support
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On 22 Mar 2006, at 10:39, Arjan van de Ven wrote:

>> The intent is to allow remote management tools to trigger a clean
>> shutdown of the virtual machine. That requires us to notify to
>> userspace, and this function does that by exec'ing one of the standard
>> userspace programs. Given the trigger is received by the kernel in the
>> first instance I don't know a better way of doing this. And if this is
>> the best way, I don't think there is generic code in the kernel which
>> does the same thing.
>
>
> well this isn't really different from the normal ctrl-alt-delete right?
> I would strongly suggest to follow the normal ctrl-alt-del path.. that
> follows the normal convention sysadmins are used to.
> It's not "/sbin/poweroff" fwiw... at least not hardcoded. Following the
> normal ctrl-alt-del codepath gets all the policy out of this kind of
> thing as well..

Hmm... that will work okay for reboot, where SIGINT to init is probably
a better strategy than what we do now. But we'd still need something
special for halt/shutdown. We followed the same principle for this as
sparc64/kernel/power.c.

-- Keir

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