[Bug 73127] New: [r600g] Possible memory leak when playing WoW with CAICOS

[Bug 73127] New: [r600g] Possible memory leak when playing WoW with CAICOS

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

          Priority: medium
            Bug ID: 73127
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [r600g] Possible memory leak when playing WoW with
                    CAICOS
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: rankincj@googlemail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/Gallium/r600
           Product: Mesa

Created attachment 91298
  --> https://bugs.freedesktop.org/attachment.cgi?id=91298&action=edit
Message log showing page allocation failure

I finally managed to build some libdrm-2.4.50 RPMs for Fedora 19 so that I
could compile a recent -git snapshot. The HEAD commit was:

author    Alex Deucher <alexander.deucher@amd.com>    2013-12-24 20:22:31 (GMT)
committer    Alex Deucher <alexander.deucher@amd.com>    2013-12-24 20:22:31
(GMT)
commit    e2d53fac1c5b18f5c9e95d39d4e2be4703b0b363 (patch) (side-by-side diff)
tree    51caa6afa79db9a733198f6bf5c6224c023fea2f
parent    35a34143026785e015adb906756651807de89bde (diff)
download    mesa-e2d53fac1c5b18f5c9e95d39d4e2be4703b0b363.zip
mesa-e2d53fac1c5b18f5c9e95d39d4e2be4703b0b363.tar.gz

r600g: fix SUMO2 pci id
0x9649 is sumo2, not sumo.

This resulted in an eventual crash of WoW and Minecraft, apparently due to
memory exhaustion. (The messages log is attached).

Reverting to my previous build seemed to fix things:

author    Marek Olšák <marek.olsak@amd.com>    2013-11-20 00:47:36 (GMT)
committer    Marek Olšák <marek.olsak@amd.com>    2013-11-23 00:54:57 (GMT)
commit    a3969aa125c8f61b093a5f5f69e8265a131051d0 (patch) (side-by-side diff)
tree    aaa0b9350231b29d9dd51c49c5c86e1fe78a6096
parent    46cf80fb366cb14827724a7fea004e81400cc602 (diff)
download    mesa-a3969aa125c8f61b093a5f5f69e8265a131051d0.zip
mesa-a3969aa125c8f61b093a5f5f69e8265a131051d0.tar.gz
mesa: initialize gl_renderbuffer::Depth in core

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #1 from Chris Rankin <rankincj@googlemail.com> ---
Is there a way to use Gallium's HUD to determine when memory is definitely
*not* being leaked, please? Otherwise, I fear any attempt at bisecting this is
doomed to fail...

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #2 from Alex Deucher <agd5f@yahoo.com> ---
Can you bisect?

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #3 from Chris Rankin <rankincj@googlemail.com> ---
(In reply to comment #2)
> Can you bisect?

See comment 1.

I am also suspecting that it is Minecraft, not Warcraft, that is the root cause
here, because I have since played WoW for a while without reproducing this. So
now I'm thinking that maybe Minecraft leaked enough memory that WoW couldn't
run.

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #4 from Marek Olšák <maraeo@gmail.com> ---
(In reply to comment #1)
> Is there a way to use Gallium's HUD to determine when memory is definitely
> *not* being leaked, please? Otherwise, I fear any attempt at bisecting this
> is doomed to fail...

Run: GALLIUM_HUD=help glxgears

You should see 2 queries: requested-VRAM and requested-GTT.

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #5 from Chris Rankin <rankincj@googlemail.com> ---
(In reply to comment #4)
> You should see 2 queries: requested-VRAM and requested-GTT.

When you say "requested-VRAM", does that measure the total VRAM currently
allocated by the particular application? Or is it by all applications? Can you
determine anything useful from the OOM message?

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #6 from Marek Olšák <maraeo@gmail.com> ---
There is a failure in kmalloc, meaning that there may be a memory leak in the
kernel.

The Gallium HUD queries say how many bytes were allocated by the app (OpenGL,
etc.) It doesn't reflect the current state of the kernel memory manager.

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #7 from Chris Rankin <rankincj@googlemail.com> ---
(In reply to comment #6)
> There is a failure in kmalloc, meaning that there may be a memory leak in
> the kernel.

I had gathered that much already from the line saying "page allocation
failure", but there are a lot of other lines such as these, which I am finding
it harder to parse:

Dec 26 12:59:32 landingpod kernel: [ 3977.929263] Node 0 DMA: 0*4kB 0*8kB
1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
1*2048kB (R) 3*4096kB (M) = 15888kB
Dec 26 12:59:32 landingpod kernel: [ 3977.929276] Node 0 DMA32: 2346*4kB (UEM)
2231*8kB (UEM) 2324*16kB (UEM) 1206*32kB (UEM) 24*64kB (EM) 0*128kB 0*256kB
0*512kB 0*1024kB 0*2048kB 0*4096kB = 104544kB
Dec 26 12:59:32 landingpod kernel: [ 3977.929287] Node 0 Normal: 984*4kB (UEMR)
1938*8kB (UEMR) 914*16kB (UEMR) 8*32kB (MR) 3*64kB (R) 0*128kB 0*256kB 1*512kB
(R) 1*1024kB (R) 0*2048kB 0*4096kB = 36048kB
Dec 26 12:59:32 landingpod kernel: [ 3977.929300] Node 0 hugepages_total=0
hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Dec 26 12:59:32 landingpod kernel: [ 3977.929301] 481313 total pagecache pages

I presume they are providing *someone* with valuable diagnostic information, or
else why are they there?

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #8 from Chris Rankin <rankincj@googlemail.com> ---
Created attachment 93322
  --> https://bugs.freedesktop.org/attachment.cgi?id=93322&action=edit
Memory being leaked with RV790

WoW is definitely leaking memory with current Mesa-git. I have attached the
dmesg log that results after playing WoW for < 1 hour.

Mesa head is:

commit 9bace99d77642f8fbd46b1f0be025ad758f83f5e
Author: Zack Rusin <zackr@vmware.com>
Date:   Tue Jan 28 16:34:18 2014 -0500

    gallivm: fix opcode and function nesting

but the problem began before this.

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #9 from Chris Rankin <rankincj@googlemail.com> ---
The memory leak I'm seeing with my RV790 doesn't seem to occur with this git
revision:

commit f5bd5568abcc234c1c2b6a4bb67b880706f3caed
Author: Mark Mueller <MarkKMueller@gmail.com>
Date:   Tue Jan 21 22:37:20 2014 -0800

    mesa: Fix Type A _INT formats to MESA_FORMAT naming standard

I am therefore assuming that this is a different bug to #73127.

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

--- Comment #10 from Michel Dänzer <michel@daenzer.net> ---
Does valgrind --leak-check=full give any hints where the leak is?

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[Bug 73127] [r600g] Possible memory leak when playing WoW with CAICOS

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https://bugs.freedesktop.org/show_bug.cgi?id=73127

GitLab Migration User <gitlab-migration@fdo.invalid> changed:

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

--- Comment #11 from GitLab Migration User <gitlab-migration@fdo.invalid> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/479.

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