[Bug 86089] [r600g] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life - dri-devel - freedesktop.org experimental mailing list

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[Bug 86089] [r600g] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

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bugzilla-daemon＠freedesktop.org

10 Nov 2014 10 Nov '14

5:05 a.m.

https://bugs.freedesktop.org/show_bug.cgi?id=86089

Bug ID: 86089 Summary: [r600g] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life Product: Mesa Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r600 Assignee: dri-devel@lists.freedesktop.org Reporter: shawn.starr@rogers.com

Compiling November 10th build of git master for rv6xx:

kernel: 3.18.0-0.rc3.git2.2.fc22.1.x86_64 mesa-dri-drivers-10.4-0.devel.100.20141110.fc21.x86_64 (custom using Fedora's .spec file)

I am using R600_DEBUG=hyperz

I get the following crash:

Program received signal SIGSEGV, Segmentation fault. 0x00007fffe916bb4e in r600_sb::bc_finalizer::cf_peephole (this=this@entry=0x7fffffffb350) at sb/sb_bc_finalize.cpp:877 877 c->jump_target = static_cast<cf_node*>(c->jump_target->next);

Full stack dump attached

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bugzilla-daemon＠freedesktop.org

10 Nov 10 Nov

5:06 a.m.

https://bugs.freedesktop.org/show_bug.cgi?id=86089

--- Comment #1 from Shawn Starr shawn.starr@rogers.com --- Created attachment 109185 --> https://bugs.freedesktop.org/attachment.cgi?id=109185&action=edit Crash from gdb stacktrace

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bugzilla-daemon＠freedesktop.org

9:51 p.m.

https://bugs.freedesktop.org/show_bug.cgi?id=86089

--- Comment #2 from Shawn Starr shawn.starr@rogers.com --- Bisecting came up with this as bad commit:

73dd50acf6d244979c2a657906aa56d3ac60d550 is the first bad commit commit 73dd50acf6d244979c2a657906aa56d3ac60d550 Author: Tapani Pälli tapani.palli@intel.com Date: Wed Aug 6 09:46:54 2014 +0300

glsl: implement switch flow control using a loop

Patch removes old variable based logic for handling a break inside switch. Switch is put inside a loop so that existing infrastructure for loop flow control can be used for the switch, now also dead code elimination works properly.

Possible 'continue' call inside a switch needs now special handling which is taken care of by detecting continue, breaking out and calling continue for the outside loop.

v2: remove one unnecessary ir_expression (Curro)

Fixes following Piglit tests:

fs-exec-after-break.shader_test fs-conditional-break.shader_test

No Piglit or es3conform regressions.

Signed-off-by: Tapani Pälli tapani.palli@intel.com Reviewed-by: Francisco Jerez currojerez@riseup.net

:040000 040000 eac8a47066723ff804317ef11bb006dd0bb80d0f b73ed6cc78a66c54d684635f69a358fd54f65929 M src

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bugzilla-daemon＠freedesktop.org

12 Nov 12 Nov

4:10 a.m.

https://bugs.freedesktop.org/show_bug.cgi?id=86089

--- Comment #3 from Shawn Starr shawn.starr@rogers.com --- A second bisect, repeated this. So this is the commit that breaks r600 SB compiler.

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bugzilla-daemon＠freedesktop.org

4:11 a.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

Shawn Starr shawn.starr@rogers.com changed:

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bugzilla-daemon＠freedesktop.org

18 Nov 18 Nov

12:42 a.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

Emil Velikov emil.l.velikov@gmail.com changed:

--- Comment #4 from Emil Velikov emil.l.velikov@gmail.com --- *** Bug 86418 has been marked as a duplicate of this bug. ***

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bugzilla-daemon＠freedesktop.org

12:43 a.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

--- Comment #5 from Emil Velikov emil.l.velikov@gmail.com ---

...

From bug 86418:

I tried launching the Second Life viewer (Kokua 3.7.8 x64) using the latest GIT version of MESA, and noticed the viewer crashes as soon as it's time to render the world. The crash only happens when Basic Shaders are enabled.

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bugzilla-daemon＠freedesktop.org

22 Nov 22 Nov

12:54 a.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

--- Comment #6 from MirceaKitsune sonichedgehog_hyperblast00@yahoo.com --- As mentioned in the related bug report, I can confirm this. I did a GIT bisect and the same commit causes this crash for me too. I'm ready to test the fix once one is in place.

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bugzilla-daemon＠freedesktop.org

28 Nov 28 Nov

3:37 a.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

--- Comment #7 from Dave Airlie airlied@freedesktop.org --- Created attachment 110153 --> https://bugs.freedesktop.org/attachment.cgi?id=110153&action=edit fix loops with no repeat.

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bugzilla-daemon＠freedesktop.org

30 Nov 30 Nov

3:31 a.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

--- Comment #8 from Shawn Starr shawn.starr@rogers.com --- Patch causes lockup, discounting the other issues now fixed. This looks to be missing something else.

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bugzilla-daemon＠freedesktop.org

27 Jan 27 Jan

10:19 a.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

Dave Airlie airlied@freedesktop.org changed:

--- Comment #9 from Dave Airlie airlied@freedesktop.org --- should be fixed in master a while back.

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bugzilla-daemon＠freedesktop.org

2 Feb 2 Feb

9:58 p.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

--- Comment #10 from MirceaKitsune sonichedgehog_hyperblast00@yahoo.com --- Confirming that it's fixed, the SL viewer works again with latest MESA GIT master.

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bugzilla-daemon＠freedesktop.org

10:03 p.m.

New subject: [Bug 86089] [r600g][mesa 10.4.0-dev] shader failure - r600_sb::bc_finalizer::cf_peephole() when starting Second Life

https://bugs.freedesktop.org/show_bug.cgi?id=86089

Shawn Starr shawn.starr@rogers.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED

--- Comment #11 from Shawn Starr shawn.starr@rogers.com --- +1 here

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bugzilla-daemon＠freedesktop.org