Re: [Bugfix] x86, irq: Fix a regression caused by commit b5dc8e6c21e7

Thomas Gleixner
2015-08-18T12:54:08Z

On Mon, 17 Aug 2015, Alex Deucher wrote:
> On Sun, Aug 9, 2015 at 4:15 AM, Jiang Liu <jiang.liu@linux.intel.com> wrote:
> > Alex Deucher, Mark Rustad and Alexander Holler reported a regression
> > with the latest v4.2-rc4 kernel, which breaks some SATA controllers.
> > With multi-MSI capable SATA controllers, only the first port works,
> > all other ports times out when executing SATA commands. This regression
> > bisects to 52f518a3a7c2 ("x86/MSI: Use hierarchical irqdomains to manage
> > MSI interrupts"), but it's not the root cause, it just triggers a bug
> > caused by b5dc8e6c21e7 ("x86/irq: Use hierarchical irqdomain to manage
> > CPU interrupt vectors").
> >
> > With this patch applied, the affected SATA controllers work as expected.
>
> I don't see this upstream yet. Any chance this will make 4.2?

Yes, it's going to be there.