Re: [Qemu-devel] [PATCH 0/2 v3] kvm: notify host when guest panicked

[Jan Kiszka]

On 2012-03-21 18:34, Avi Kivity wrote:
> On 03/21/2012 07:04 PM, Daniel P. Berrange wrote:
>>>
>>> In fact the feature can be implemented 100% host side by searching for a
>>> panic string signature in the console logs.
>>
>> You can even go one better and search for the panic string in the
>> guest memory directly, which is what virt-dmesg does :-)
>>
>>   http://people.redhat.com/~rjones/virt-dmesg/
>>
> 
> -ETOOHACKY
> 
> Any guest change will break this, no?

/me has a simple python script (a few ten lines) to do this during
runtime (kgdb, qemu gdbstub) or post-portem (gdb -c vmcore). Ideally,
that will once come with the Linux sources where it can be kept in sync
with the kernel data structures.

Jan

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