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Howlett" To: Lorenzo Stoakes Cc: Mikulas Patocka , Andrew Morton , Pedro Falcato , Alex Deucher , Christian =?utf-8?B?S8O2bmln?= , David Hildenbrand , amd-gfx@lists.freedesktop.org, linux-mm@kvack.org, Vlastimil Babka , Jann Horn Subject: Re: [PATCH v4 2/2] amdgpu: delete the "Failed to register MMU notifier" message Message-ID: Mail-Followup-To: "Liam R. 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 7+bgdD1w 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error may happen if mm_take_all_locks was interrupted by a signal = - > > the userspace will retry an ioctl that returned -EINTR, so there is no > > need to report it to the syslog. > > > > Christian K=F6nig suggested to remove this message at all, so let's do = it. > > > > Signed-off-by: Mikulas Patocka >=20 > I don't really see the point in this being part of the series here... see= ms > to me a patch that could be applied any time, so why not send that > separately to the amd driver people? >=20 > I mean maybe it's not al that important but still. I really think changing this to info would be better. It was (and may be) useful to some? Obviously the amd folks need to work on signal handling and this would help them.. But then again, as Lorenzo said, we don't really need to be involved in this patch. >=20 > > > > --- > > drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 5 +---- > > 1 file changed, 1 insertion(+), 4 deletions(-) > > > > Index: mm/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > --- mm.orig/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c 2026-01-07= 20:09:51.000000000 +0100 > > +++ mm/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c 2026-01-07 20:1= 2:11.000000000 +0100 > > @@ -1069,11 +1069,8 @@ static int init_user_pages(struct kgd_me > > } > > > > ret =3D amdgpu_hmm_register(bo, user_addr); > > - if (ret) { > > - pr_err("%s: Failed to register MMU notifier: %d\n", > > - __func__, ret); > > + if (ret) > > goto out; > > - } > > > > if (criu_resume) { > > /* > > > >