Re: [PATCH] Fix emergency_restart (sysrq-b) with kvm loaded on Intelhosts
From: Avi Kivity
Date: Mon Aug 25 2008 - 06:36:57 EST
Ingo Molnar wrote:
* Avi Kivity <avi@xxxxxxxxxxxx> wrote:
reboot was always a bit fragile - i think we should only do that if
we find a box where the FADT reset works better than the first-wave
approaches we try.
It worked on my host. Since it will fall back to keyboard reset and
triple fault, it seems fairly safe.
... except if it hangs in ACPI/SMM code for whatever reason.
acpi reboot doesn't call into the aml interpreter. It just bangs on a
port that it reads from a static table. See acpi_reboot().
It's true that SMM could be set up to intercept that port, but in that
case, it is even more likely that it intercepts the keyboard controller
port (to translate usb keyboards etc).
--
error compiling committee.c: too many arguments to function
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