[Bug 101330] segfault in pcsxr

[Bug 101330] segfault in pcsxr

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=101330

            Bug ID: 101330
           Summary: segfault in pcsxr
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: vb@luminar.eu.org
        QA Contact: dri-devel@lists.freedesktop.org

```
Thread 1 "pcsxr" received signal SIGSEGV, Segmentation fault.
st_validate_state (st=0x8a3f8c8, pipeline=ST_PIPELINE_CLEAR) at
state_tracker/st_atom.c:182
182     state_tracker/st_atom.c: Aucun fichier ou dossier de ce type.
(gdb) bt
#0  st_validate_state (st=0x8a3f8c8, pipeline=ST_PIPELINE_CLEAR) at
state_tracker/st_atom.c:182
#1  0xe6cc5f0e in st_Clear (ctx=<optimized out>, mask=<optimized out>) at
state_tracker/st_cb_clear.c:409
#2  0xe6b2e232 in _mesa_Clear (mask=16640) at main/clear.c:225
#3  0xe77b708e in primBlkFill () from /home/vb/.pcsxr/plugins//libpeopsxgl.so
#4  0xe77adf01 in GPUwriteDataMem () from
/home/vb/.pcsxr/plugins//libpeopsxgl.so
#5  0xe77ae44c in GPUdmaChain () from /home/vb/.pcsxr/plugins//libpeopsxgl.so
```

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[Bug 101330] segfault in pcsxr

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=101330

--- Comment #1 from Nicolai Hähnle <nhaehnle@gmail.com> ---
How can the problem be reproduced? What version of Mesa are you using? This
seems more likely to be a bug in the application.

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[Bug 101330] segfault in pcsxr

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https://bugs.freedesktop.org/show_bug.cgi?id=101330

--- Comment #2 from Vincent B. <vb@luminar.eu.org> ---
I'm using latest mesa git.

Latest backtrace:

                Stack trace of thread 1884:
                #0  0x00000000e66b77f2 st_validate_state (radeonsi_dri.so)
                #1  0x00000000e66bffee st_Clear (radeonsi_dri.so)
                #2  0x00000000e6528332 _mesa_Clear (radeonsi_dri.so)
                #3  0x00000000e71b708e primBlkFill (libpeopsxgl.so)
                #4  0x00000000e71adf01 GPUwriteDataMem (libpeopsxgl.so)
                #5  0x00000000e71ae44c GPUdmaChain (libpeopsxgl.so)
                #6  0x00000000080961f1 n/a (pcsxr)
                #7  0x0000000008097042 n/a (pcsxr)
                #8  0x00000000f4e4b131 n/a (n/a)

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[Bug 101330] segfault in pcsxr

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=101330

--- Comment #3 from Vincent B. <vb@luminar.eu.org> ---
In order to reproduce, with Archlinux, install pcsxr, and try launching a
PlayStation ISO.

I think the bug is in the driver since the segfault occurs in the driver (and
that this plugin has been successfully used for years as-is with other
configs).

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[Bug 101330] segfault in pcsxr

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=101330

--- Comment #4 from Nicolai Hähnle <nhaehnle@gmail.com> ---
The thing is, I don't have a PlayStation ISO.

Also, state_tracker/st_atom.c:182 is a line where it's impossible for a
segfault to happen in current Mesa master.

Can you provide an apitrace that reproduces the crash?

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[Bug 101330] segfault in pcsxr

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https://bugs.freedesktop.org/show_bug.cgi?id=101330

--- Comment #5 from Vincent B. <vb@luminar.eu.org> ---
https://github.com/htrmeira/gpu-peops-open-gl/blob/master/gpuPeopsOpenGL/src/src_plugin/prim.c#L1991-L2103

This is probably this code that made my radeonsi crash.

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[Bug 101330] segfault in pcsxr

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https://bugs.freedesktop.org/show_bug.cgi?id=101330

--- Comment #6 from Vincent B. <vb@luminar.eu.org> ---
Core was generated by `pcsxr'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0xe64f8128 in radeon_bo_do_map (bo=0x931b0f8) at radeon_drm_bo.c:466
466     radeon_drm_bo.c: Aucun fichier ou dossier de ce type.
[Current thread is 1 (Thread 0xf5ab2fc0 (LWP 4362))]
(gdb) bt
#0  0xe64f8128 in radeon_bo_do_map (bo=0x931b0f8) at radeon_drm_bo.c:466
#1  0xe6529342 in r600_buffer_transfer_map (ctx=0x965c168, resource=0x955cc30,
level=0, usage=3758099970, box=0xffad0cc8, ptransfer=0x9313f54) at
r600_buffer_common.c:480
#2  0xe620e6d8 in tc_transfer_map (_pipe=0x9771850, resource=0x955cc30,
level=0, usage=3758099970, box=0xffad0cc8, transfer=0x9313f54) at
util/u_threaded_context.c:1396
#3  0xe5fd1384 in pipe_buffer_map_range (transfer=0x9313f54, access=<optimized
out>, length=65536, offset=0, buffer=<optimized out>, pipe=<optimized out>) at
../../src/gallium/auxiliary/util/u_inlines.h:307
#4  st_bufferobj_map_range (ctx=0x97796c8, offset=0, length=65536,
access=16438, obj=0x9313ed8, index=MAP_INTERNAL) at
state_tracker/st_cb_bufferobjects.c:433
#5  0xe5fad656 in vbo_exec_vtx_map (exec=0x979dadc) at vbo/vbo_exec_draw.c:342
#6  0xe5f98114 in vbo_Vertex3fv (v=0xe6afaec0 <vertex>) at
vbo/vbo_attrib_tmp.h:280
#7  0xe6ab5842 in primTileS () from /home/vb/.pcsxr/plugins//libpeopsxgl.so
#8  0xe6aacf01 in GPUwriteDataMem () from
/home/vb/.pcsxr/plugins//libpeopsxgl.so
#9  0xe6aad44c in GPUdmaChain () from /home/vb/.pcsxr/plugins//libpeopsxgl.so
#10 0x080961f1 in ?? ()
#11 0x08097042 in ?? ()
#12 0xf4d77fbd in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

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[Bug 101330] segfault in pcsxr

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=101330

Timothy Arceri <t_arceri@yahoo.com.au> changed:

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

--- Comment #7 from Timothy Arceri <t_arceri@yahoo.com.au> ---
Seems ok to me. Please re-open and ideally provide an apitrace [1] if you still
have problems.

[1] https://github.com/apitrace/apitrace/blob/master/docs/USAGE.markdown

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