Re: [PATCH v2] fix AMDGPU failure with periodic signal

[Lorenzo Stoakes <lorenzo.stoakes@oracle.com>]

On Sun, Jan 04, 2026 at 10:12:50PM +0100, Mikulas Patocka wrote:
>
>
> On Fri, 2 Jan 2026, Lorenzo Stoakes wrote:
>
> > +cc literally everyone you should have cc'd in mm :/
> >
> > Hi Mikulas,
> >
> > You really need to check MAINTAINERS, you've sent a patch that changes mm/vma.c
> > without cc'ing a single maintainer or reviewer of that file. I just happened to
> > notice this by chance, even lei seemed to mess up the file query for some
> > reason.
>
> I saw
>
> MEMORY MANAGEMENT
> M:      Andrew Morton <akpm@linux-foundation.org>
> L:      linux-mm@kvack.org
> S:      Maintained
>
> in the MAINTAINERS file, so I sent the patch to Andrew and to
> linux-mm@kvack.org. I should have sent it also to people on the "MEMORY
> MANAGEMENT - CORE" section, but I missed it.

Yup things have changed :) scripts/get_maintainers.pl --no-git ... is the way to
be sure.

Understand if you haven't touched mm for a while you'd assume it was as was but
now we really do try to have people assigned to each bit.

>
> > I'm confused in general about this patch, you sent it on 7th Nov? And it's been
> > ignored until now and then taken without review to the hotfixes queue?
>
> I'm developing code that translates parallelizable loops written in the
> Ajla programming language (www.ajla-lang.cz) into OpenCL and runs them on
> the graphics card. Ajla sets up a periodic timer that sends a signal for
> scheduling purposes and this signal interferes with OpenCL, causing the
> -EINTR failures.
>
> So far, I worked around this bug by blocking all signals around the
> functions clGetPlatformIDs and clGetDeviceIDs - but it would be better to
> fix it in the Linux kernel and remove the signal-blocking hacks.

Sure I get that, I'm just confused as to why this was suddenly taken to
mm-unstable-hotfix out of the blue a couple months later.

Anyway I sent another mail with review, please rework this patch accordingly.

>
> Mikulas
>
>

Thanks, Lorenzo