Re: [Xen-devel] [PATCH 0/3] x86: fixes/improvements for scratch cpumask

[Sander Eikelenboom <linux@xxxxxxxxxxxxxx>]

On 12/02/2020 18:01, Roger Pau Monné wrote:
> On Wed, Feb 12, 2020 at 05:53:39PM +0100, Sander Eikelenboom wrote:
>> On 12/02/2020 17:49, Roger Pau Monne wrote:
>>> Hello,
>>>
>>> Commit:
>>>
>>> 5500d265a2a8fa63d60c08beb549de8ec82ff7a5
>>> x86/smp: use APIC ALLBUT destination shorthand when possible
>>>
>>> Introduced a bogus usage of the scratch cpumask: it was used in a
>>> function that could be called from interrupt context, and hence using
>>> the scratch cpumask there is not safe. Patch #2 is a fix for that usage.
>>>
>>> Patch #3 adds some debug infrastructure to make sure the scratch cpumask
>>> is used in the right context, and hence should prevent further missuses.
>>>
>>> Thanks, Roger.
>>
>> Hi Roger,
>>
>> Do you still want me to test the "panic" patch ?
>> Or test this series instead ?
> 
> I've been able to trigger this myself, so if you can give a try to the
> series in order to assert it fixes your issue that would be great.
> 
> Thanks.
> 

Sure, compiling now, will report back tomorrow morning.
--
Sander

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel