[Bug 83416] New: [radeonsi] Serious Sam 3 lockup during its start

[Bug 83416] New: [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

          Priority: medium
            Bug ID: 83416
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [radeonsi] Serious Sam 3 lockup during its start
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: lordheavym@gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/Gallium/radeonsi
           Product: Mesa

Created attachment 105638
  --> https://bugs.freedesktop.org/attachment.cgi?id=105638&action=edit
kernel.log file with kernel 3.17rc3

* Tested with both kernel 3.16.1 and kernel 3.17rc3, with and without hyperz
* OpenGL renderer string: Gallium 0.4 on AMD PITCAIRN
* OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.4.0-devel
(git-021e84f)

I can reproduce the lockup with the trace:
http://pkgbuild.com/~lcarlier/trace/Sam3.tar.xz

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #1 from smoki <smoki00790@gmail.com> ---

 Can not reproduce it on Kabini, with same git version 021e84f.

 That with mesa builded against current llvm-3.6 svn just pass fine, and when i
build mesa against 3.5 this this apitrace just segfault... in both cases no
lockup.

 Debian.

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #2 from Michel Dänzer <michel@daenzer.net> ---
I get no lockup either, but I do see the same GPUVM protection faults:

 radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x0FF00819

The FF bits make me suspect bits 32-4x of the GPUVM address are getting
clobbered, maybe because of the LLVM backend generating invalid shader code.

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #3 from Laurent carlier <lordheavym@gmail.com> ---
Created attachment 105674
  --> https://bugs.freedesktop.org/attachment.cgi?id=105674&action=edit
ouput of 'R600_DEBUG=ps,vs glretrace Sam3.trace'

LLVM is 3.6svn r216889

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #4 from Laurent carlier <lordheavym@gmail.com> ---
Link to the trace in google drive:
https://drive.google.com/file/d/0B1WCo3k21FK3dTZmaFFmU2wwQzQ/edit?usp=sharing

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #5 from smoki <smoki00790@gmail.com> ---
(In reply to comment #2)
> I get no lockup either, but I do see the same GPUVM protection faults:
> 
>  radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x0FF00819
> 
> The FF bits make me suspect bits 32-4x of the GPUVM address are getting
> clobbered, maybe because of the LLVM backend generating invalid shader code.

 For me nothing new in dmesg, but there is something very interesting here
happen. When radeonsi.so is striped this trace segfault for me, if not striped
it pass fine no segfault, what that can be? Hmm...

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #6 from Laurent carlier <lordheavym@gmail.com> ---
Just to note that this trace is produced with apitrace 5.0 and with the
following commandline:
GALLIUM_HUD=num-bytes-moved apitrace32 trace %command%

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #7 from smoki <smoki00790@gmail.com> ---
Created attachment 105676
  --> https://bugs.freedesktop.org/attachment.cgi?id=105676&action=edit
segfault

(In reply to comment #5)
>  For me nothing new in dmesg, but there is something very interesting here
> happen. When radeonsi.so is striped this trace segfault for me, if not
> striped it pass fine no segfault, what that can be? Hmm...

 After restart it works but segfault again, wwird... this one tried on a pure
32bit OS.

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #8 from smoki <smoki00790@gmail.com> ---
 @Laurent carlier

 Is this new issue or regressions maybe?

 Don't have SSAM3 game, but i remember from earlier versions that Serios Sam
have bunch of different settings, maybe you can try some different settings
started with Low or something, maybe only some of settings triggers the issue,
etc.

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #9 from smoki <smoki00790@gmail.com> ---

 Try also some stable mesas if you can 10.2 or 10.3, i have very strange issues
with 32bit mesa and apps, particulary build system in current git seems very
broken for me. Make install, SSE41 macro compile needs much more CPU time,
striping does not work fine, default optimization level is not good -O3 fixes
it, etc.

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #10 from Laurent carlier <lordheavym@gmail.com> ---
Just tried with mesa-10.2.6/llvm-3.4.2 and the trace works fine except the
following from LLVM:
LLVM ERROR: ran out of registers during register allocation

Here are the flags used:
CPPFLAGS="-D_FORTIFY_SOURCE=2"
CFLAGS="-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong
--param=ssp-buffer-size=4"
CXXFLAGS="-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong
--param=ssp-buffer-size=4"
LDFLAGS="-Wl,-O1,--sort-common,--as-needed,-z,relro"
DEBUG_CFLAGS="-g -fvar-tracking-assignments"
DEBUG_CXXFLAGS="-g -fvar-tracking-assignments"

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #11 from Vadim Girlin <ptpzz@yandex.ru> ---
(In reply to comment #2)
> I get no lockup either, but I do see the same GPUVM protection faults:
> 
>  radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x0FF00819
> 
> The FF bits make me suspect bits 32-4x of the GPUVM address are getting
> clobbered, maybe because of the LLVM backend generating invalid shader code.

I've found similar bug with incorrect high part of the address and the problem
was that llvm backend uses S_ADD/SUB_I32 for lowering 64-bit integer add/sub,
but it should use _U32 versions instead. I was going to send the patch but the
fix is trivial, basically just replace all uses of S_ADD/SUB_I32 with
S_ADD/SUB_U32. I'm not sure if you are hitting the same issue though.

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #12 from Tom Stellard <tstellar@gmail.com> ---
Created attachment 105709
  --> https://bugs.freedesktop.org/attachment.cgi?id=105709&action=edit
Fix suggested by Vadim

Can you try this patch?

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #13 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #12)
> Can you try this patch?

The patch fixes the GPUVM faults for me while replaying the apitrace.

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #14 from Laurent carlier <lordheavym@gmail.com> ---
(In reply to comment #12)
> Created attachment 105709 [details] [review]
> Fix suggested by Vadim
> 
> Can you try this patch?

It doesn't fix the lockup for me. I've tested mesa-git with llvm 3.4.3 both the
trace and the game, and they failled both with the following error:

LLVM ERROR: Cannot select: 0x1671def0: i32 = truncate 0x16716ff4 [ORD=21]
[ID=121]
  0x16716ff4: i128 = srl 0x1671cb14, 0x16717198 [ORD=21] [ID=102]
    0x1671cb14: i128,ch = load 0x166a9484, 0x167123bc,
0x16712e20<LD16[%32](tbaa=!"const")> [ORD=21] [ID=90]
      0x167123bc: i64,ch = CopyFromReg 0x166a9484, 0x16712330 [ID=81]
        0x16712330: i64 = Register %vreg66 [ID=2]
      0x16712e20: i64 = undef [ID=8]
    0x16717198: i32 = Constant<96> [ID=76]
In function: main

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

Laurent carlier <lordheavym@gmail.com> changed:

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

--- Comment #15 from Laurent carlier <lordheavym@gmail.com> ---
I can confirm that 8bd67231797e5d79d72a4e91b37ea81da30c6df3 is fixing the hang.

Thanks Marek, closing!

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

Laurent carlier <lordheavym@gmail.com> changed:

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

--- Comment #16 from Laurent carlier <lordheavym@gmail.com> ---
Bad luck, it's hanging again! -> reopened

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #17 from Grigori Goronzy <greg@chown.ath.cx> ---
Does this Mesa patch help?

https://bugs.freedesktop.org/attachment.cgi?id=105755

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #18 from Laurent carlier <lordheavym@gmail.com> ---
(In reply to comment #17)
> Does this Mesa patch help?
> 
> https://bugs.freedesktop.org/attachment.cgi?id=105755

No, it doesn't help

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

--- Comment #19 from Laurent carlier <lordheavym@gmail.com> ---
Fixed with current mesa trunk, so closing

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[Bug 83416] [radeonsi] Serious Sam 3 lockup during its start

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https://bugs.freedesktop.org/show_bug.cgi?id=83416

Laurent carlier <lordheavym@gmail.com> changed:

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

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