Re: [Xen-devel] [RFC] x86/watchdog: Always disable watchdog before console_force_unlock()

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 12.08.13 at 11:35, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> wrote:
> On 12/08/13 09:50, Jan Beulich wrote:
>>>>> On 09.08.13 at 23:17, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> wrote:
>>> console_force_unlock() is only on emergency paths, so one way or another the
>>> host is going down.  Disable the watchdog before forcing the console lock to
>>> help prevent having pcpus completing with each other to bring the host down.
>> So perhaps rather than calling watchdog_disable() before calling
>> console_force_unlock(), would we not better call the former first
>> thing from the latter?
> 
> That was indeed my first attempt, but console_force_unlock() is common
> while watchdog_* is x86.
> 
> I could convert the watchdog to arch specific.  I suppose it is
> possible/likely that the Arm folk might want to implement and use
> watchdogs ?

So would I think. Just have ARM have an empty function for the
moment.

Jan


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