[Bug 58272] New: Rv670 AGP drm-next ttm errors

[Bug 58272] New: Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

          Priority: medium
            Bug ID: 58272
          Assignee: dri-devel@lists.freedesktop.org
           Summary: Rv670 AGP drm-next ttm errors
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: lists@andyfurniss.entadsl.com
          Hardware: x86 (IA32)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Created attachment 71476
  --> https://bugs.freedesktop.org/attachment.cgi?id=71476&action=edit
errors in kern log with dma

I haven't had time to test latest drm-next but will post this now as may be AFK
tomorrow.

After finding a place on mesa where etqw seems OK with drm-fixes I am getting
errors with drm-next.

On yesterdays head + the wb patch I got attachment 1.

With the tree reset to before the dma changes which required the patch -

drm/ttm: remove no_wait_reserve, v3

I got attachment 2

the last lines repeating for 400k lines and the log also getting filled with
junk.

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #1 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
Created attachment 71477
  --> https://bugs.freedesktop.org/attachment.cgi?id=71477&action=edit
errors in kern log before dma changes

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #2 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
Hmm I see using the word  a t t a c h m e n t does strange things  - 1 and 2
are not mine.

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #3 from Maarten Lankhorst <m.b.lankhorst@gmail.com> ---
It seems that ttm_mem_evict_first is called way more often in a nasted fashion
than is healthy there. Could you resolve the ttm_mem_evict_first address where
it ends up calling itself back to a specific line?

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #4 from Maarten Lankhorst <m.b.lankhorst@gmail.com> ---
It looks nasty though, could you also dump mem_type for each time it calls
ttm_mem_evict_first?

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #5 from Maarten Lankhorst <m.b.lankhorst@gmail.com> ---
Do any of your local patches touch radeon_evict_flags or
radeon_ttm_placement_from_domain? I don't see why it would recurse so deeply
otherwise.

A full public git tree to reproduce the problem and seeing what patches are
applied would also be nice.

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #6 from Alex Deucher <agd5f@yahoo.com> ---
Created attachment 71507
  --> https://bugs.freedesktop.org/attachment.cgi?id=71507&action=edit
fix

Should be fixed with this patch.

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #7 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
(In reply to comment #6)
> Created attachment 71507 [details] [review]
> fix
> 
> Should be fixed with this patch.

Probably :-)

It seems that current drm-next head + fix has a different issue which makes
etqw die quite quickly.

drm-next reset onto 

drm/ttm: remove no_wait_reserve, v3 + the fix 

is now stable with etqw.

The head issue is -

EE r600_texture.c:697 r600_texture_transfer_map - failed to create temporary
texture to hold untiled copy
Mesa: User error: GL_OUT_OF_MEMORY in glTexSubImage
radeon: The kernel rejected CS, see dmesg for more information.
double fault: 'Segmentation fault', bailing out

in dmesg - 

[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_gem_object_create] *ERROR* Failed to allocate GEM object (8192, 2,
4096, -12)
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
etqw.x86[2478]: segfault at 0 ip af5142ad sp bff8b310 error 4 in
gamex86.so[af23f000+948000]

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #8 from Maarten Lankhorst <m.b.lankhorst@gmail.com> ---
Could you please run a git bisection to see where that error has been
introduced, then?

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #9 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
Created attachment 71530
  --> https://bugs.freedesktop.org/attachment.cgi?id=71530&action=edit
gpu lock + oops on use async dma for ttm buffer moves on 6xx-SI

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #10 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
(In reply to comment #8)
> Could you please run a git bisection to see where that error has been
> introduced, then?

It seems that drm/radeon: use async dma for ttm buffer moves on 6xx-SI is the
first non working, but it gives a different fail from head. Log attached.

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

Florian Mickler <florian@mickler.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |florian@mickler.org

--- Comment #11 from Florian Mickler <florian@mickler.org> ---
A patch referencing this bug report has been merged in Linux v3.8-rc1:

commit dd54fee7d440c4a9756cce2c24a50c15e4c17ccb
Author: Dave Airlie <airlied@redhat.com>
Date:   Fri Dec 14 21:04:46 2012 +1000

    radeon: fix regression with eviction since evict caching changes

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #12 from Alex Deucher <agd5f@yahoo.com> ---
Make sure your kernel has this patch:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=0953e76e91f4b6206cef50bd680696dc6bf1ef99

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #13 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
(In reply to comment #12)
> Make sure your kernel has this patch:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;
> h=0953e76e91f4b6206cef50bd680696dc6bf1ef99

I tested drm-next head when that went in and got the same results.

I've just rebuilt it to be sure and with etqw I get a segfault after about 10
secs and in dmesg -

[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!

I've also managed to reproduce the GPU lock + oops I reported earlier - this
time with nexuiz on current drm-next head.

I am not getting ttm errors any more so I guess this bug should be closed?

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

--- Comment #14 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
(In reply to comment #13)
> (In reply to comment #12)
> > Make sure your kernel has this patch:
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;
> > h=0953e76e91f4b6206cef50bd680696dc6bf1ef99
> 
> I tested drm-next head when that went in and got the same results.
> 
> I've just rebuilt it to be sure and with etqw I get a segfault after about
> 10 secs and in dmesg -
> 
> [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
> 
> I've also managed to reproduce the GPU lock + oops I reported earlier - this
> time with nexuiz on current drm-next head.
> 
> I am not getting ttm errors any more so I guess this bug should be closed?

FWIW I tried current drm-next + patch -

0003-drm-radeon-fix-dma-copy-on-r6xx-r7xx-evergen-ni-si-g.patch

And I still fail with etqw after about 10 secs, but do get more info.

radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: Failed to allocate a buffer:
radeon:    size      : 7168 bytes
radeon:    alignment : 256 bytes
radeon:    domains   : 2
EE r600_texture.c:697 r600_texture_transfer_map - failed to create temporary
texture to hold untiled copy
Mesa: User error: GL_OUT_OF_MEMORY in glTexSubImage
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
double fault: 'Segmentation fault', bailing out
shutdown terminal support
/home/andy/bin/etqw: line 1:  2472 Segmentation fault     
/usr/local/games/etqw/etqw

dmesg -

[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_gem_object_create] *ERROR* Failed to allocate GEM object (8192, 2,
4096, -12)
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
etqw.x86[2472]: segfault at 0 ip af5292ad sp bfbe3250 error 4 in
gamex86.so[af254000+948000]

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[Bug 58272] Rv670 AGP drm-next ttm errors

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https://bugs.freedesktop.org/show_bug.cgi?id=58272

Andy Furniss <lists@andyfurniss.entadsl.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #15 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
Current drm-fixes is working for me now.

The remaining etqw issue was fixed by -

Revert "drm/radeon: do not move bo to different placement at each cs"

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