[Bug 91600] WoW crashes in OpenGL mode with Mesa, but not with NVIDIA blob

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91600

            Bug ID: 91600
           Summary: WoW crashes in OpenGL mode with Mesa, but not with
                    NVIDIA blob
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: rankincj at googlemail.com
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 117619
  --> https://bugs.freedesktop.org/attachment.cgi?id=117619&action=edit
WINEDEBUG trace, including R600 shaders

Hardware tested: Linux x64, both HD4890 and HD6450

World of Warcraft (OpenGL mode) has been crashing ever since it upgraded itself
to 6.2. I had assumed that it was a bug in the WoW client, until I noticed that
WoW did not crash on a machine running with the NVIDIA binary blob.

I have executed WoW using the following command:

$ R600_DEBUG=fs,vs,gs,ps,cs WINEDEBUG=+opengl,+wgl,seh ./Wow-64.exe

And it appears that WoW is throwing an exception in a glLoadMatrix() operation:

trace:opengl:glCallList (1)
trace:opengl:glLoadMatrixf (0x22f610)
trace:seh:raise_exception code=c0000005 flags=0 addr=(nil) ip=0 tid=0027
trace:seh:raise_exception  info[0]=0000000000000000
trace:seh:raise_exception  info[1]=0000000000000000
trace:seh:raise_exception  rax=0000000006e9d2c0 rbx=0000000006e9ffd0
rcx=0000000000009117 rdx=0000000000000000
trace:seh:raise_exception  rsi=00000001413696b1 rdi=0000000006e9d2c0
rbp=000000000022fa60 rsp=000000000022f898
trace:seh:raise_exception   r8=000000000000000a  r9=000000000022f610
r10=00007f2857d369f6 r11=000000000022f7f0
trace:seh:raise_exception  r12=00000000001b6b06 r13=0000000000000000
r14=00007fffff7e8000 r15=00007ffd34f83da0
trace:seh:RtlVirtualUnwind type 1 rip 1400de519 rsp 22f8a0
trace:seh:dump_unwind_info **** func de4d0-de5aa
trace:seh:dump_unwind_info unwind info at 0x1412e21ac flags 0 prolog 0x6 bytes
function 0x1400de4d0-0x1400de5aa
trace:seh:dump_unwind_info     0x6: subq $0x20,%rsp
trace:seh:dump_unwind_info     0x2: pushq %rbx
trace:seh:RtlVirtualUnwind type 1 rip 1400d0ec9 rsp 22f8d0
trace:seh:dump_unwind_info **** func d0e70-d0ef8

I don't know how to debug this any further; the more flags I add to WINEDEBUG,
the less likely WoW is to do *anything* (i.e. "run at all"). Raising this as a
means of requesting more ideas.

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