amd-staging-drm-next, CIK apu, [TTM] Erroneous page count. Leaking pages. [BISECTED]

[Przemek Socha]

Dnia czwartek, 11 kwietnia 2019 19:31:27 CEST piszesz:
> Yeah, that is a known issue and already fixed in amd-staging-drm-next.
> 
> You just need to wait for the public mirror to update.
> 
> Christian.
> 
> Am 11.04.19 um 18:53 schrieb Przemek Socha:
> 
> > Hi All,
> > after today's sync with amd-staging-drm-next branch I have problems with
> > my
 Mullins APU Netbook.
> > Kernel log is flooded with "[TTM] Erroneous page count. Leaking pages."
> > message.
> >
> >
> >
> > Bisected, and it seems that "drm/ttm: fix start page for huge page check
> > in
 ttm_put_pages()" commit is causing this.
> >
> >
> >
> > git bisect log:
> > git bisect start
> > # good: [c2af9f9e84183a4dbcb53a74abbe3362dc181682] drm/amd/display: fix
> > cursor
 black issue
> > git bisect good c2af9f9e84183a4dbcb53a74abbe3362dc181682
> > # bad: [b07c394a327fc9e435ee03288584c111fa73d963] drm/amd/display: fix is
> > odm
 head pipe logic
> > git bisect bad b07c394a327fc9e435ee03288584c111fa73d963
> > # bad: [367fa96ad66fef31bf73916cf4949c475f42563f] drm/amd/display: use
> > proper
 formula to calculate bandwidth from timing
> > git bisect bad 367fa96ad66fef31bf73916cf4949c475f42563f
> > # good: [94275c6d27deebbce5055e1bb1959986051b93f2] drm/amdgpu: Add a check
> > to
 avoid panic because of unexpected irqs
> > git bisect good 94275c6d27deebbce5055e1bb1959986051b93f2
> > # bad: [8198a32b1211c6f625623bae22629cf852531097] drm/amd/display:
> > Initialize
 stream_update with memset
> > git bisect bad 8198a32b1211c6f625623bae22629cf852531097
> > # bad: [e16858a7e6e7dc00345703682d490b96f2883b99] drm/ttm: fix start page
> > for
 huge page check in ttm_put_pages()
> > git bisect bad e16858a7e6e7dc00345703682d490b96f2883b99
> > # good: [b414dfd1f975bbf4c9ee4600f9bedcf77bae84ed] drm/ttm: fix
> > out-of-bounds
 read in ttm_put_pages() v2
> > git bisect good b414dfd1f975bbf4c9ee4600f9bedcf77bae84ed
> > # first bad commit: [e16858a7e6e7dc00345703682d490b96f2883b99] drm/ttm:
> > fix
 start page for huge page check in ttm_put_pages()
> >
> >
> >
> > e16858a7e6e7dc00345703682d490b96f2883b99 is the first bad commit
> > commit e16858a7e6e7dc00345703682d490b96f2883b99
> > Author: Christian König <christian.koenig at amd.com>
> > Date:   Tue Apr 2 09:29:35 2019 +0200
> >
> >
> >
> >      drm/ttm: fix start page for huge page check in ttm_put_pages()
> >      
> >      The first page entry is always the same with itself.
> >      
> >      Signed-off-by: Christian König <christian.koenig at amd.com>
> >      Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>
> >      Reviewed-by: Junwei Zhang <Jerry.Zhang at amd.com>
> >      Reviewed-by: Huang Rui <ray.huang at amd.com>
> >
> >
> >
> > Any help is appreciated.
> > Thanks,
> > Przemek.
> 
> 

Thanks, and sorry about all the fuss.
Przemek.
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