Re: [Xen-ia64-devel] [Patch] Stop all cpus at panic time

[Alex Williamson <alex.williamson@xxxxxx>]

On Tue, 2007-12-04 at 23:48 +0900, Akio Takebe wrote:
> Hi,
> 
> Current panic() of hypervisor doesn't stop all cpus.
> So domains can work after hypervisor panic.
> (but this issue happens at only using noreboot option)
> If dom0 works after Hypervisor panic,
> the system may get a serious problem.

   This looks like a good 3.2 candidate.  I think there's still a minor
issue though.  Our implementation of stop_this_cpu() removes the CPU
from the online map, disables interrupts, then returns(!).  We should
probably figure out if we still need the call to cpu_halt() ifdef'd out
or at least put a busy loop in it's place.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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