Re: [RFC v2] x86: Select HARDIRQS_SW_RESEND on x86

Thomas Gleixner
2020-03-11T22:09:55Z

Hans de Goede <hdegoede@redhat.com> writes:
> On 3/11/20 10:31 PM, Thomas Gleixner wrote:
>> Hans de Goede <hdegoede@redhat.com> writes:
>>>> I just need to stare at the legacy PIC and the virt stuff.
>>>>
>>>>> Also maybe we should add a Cc: stable@vger.kernel.org ??? This seems like
>>>>> somewhat a big change for that but it does solve some real issues...
>>>>
>>>> Yes. Let me stare at the couple of weird irqchips which might get
>>>> surprised. I'll teach them not to do that :)
>>>
>>> I know that you are very busy, still I'm wondering is there any progress
>>> on this ?
>>
>> Bah. That fell through the cracks, but actually I looked at this due to
>> the PCI-E AER wreckage. So yes, this is fine, but we want:
>>
>> https://lkml.kernel.org/r/20200306130623.590923677@linutronix.de
>> https://lkml.kernel.org/r/20200306130623.684591280@linutronix.de
>>
>> if we want to backport this to stable.
>
> So far I have seen a few, but not a lot of devices which need this, so
> I'm not 100% sure what to do here.
>
> Do you consider this change safe / suitable for stable if those 2 patches
> are backported and applied first?

I think so. The two patches are on my list for backports anyway, but I
wanted to give them some time to simmer.

Thanks,

tglx