[Mesa-dev] SIGFPE in libdrm_radeon on evergreen

[Jerome Glisse]

On Mon, May 20, 2013 at 5:13 AM, Vadim Girlin <vadimgirlin at gmail.com> wrote:
> On 05/20/2013 11:27 AM, Dragomir Ivanov wrote:
>>
>> 0x00007ffff69058d7 in eg_surface_init_2d (surf_man=0x633ea0,
>> surf=0x88d848,
>> level=0x88dea8, bpe=1, tile_split=0, offset=65536, start_level=0)
>>
>> It looks like division by 0. tile_split=0 from the call site.
>
>
> Yes, I'm just not sure why tile_split is 0 here and what is the best way to
> fix it, possibly in fact this is a consequence of some problem in r600g, not
> in the libdrm. Though probably libdrm should handle it more gracefully
> anyway.
>
> Vadim

Just a guess, ddx is not properly setting tile split on a surface and
then r600g call in trying to rebuild miptree ... I think i fixed issue
in ddx couple month ago but maybe i did not.

Cheers,
Jerome

>>
>>
>> On Mon, May 20, 2013 at 4:11 AM, Vadim Girlin <vadimgirlin at gmail.com>
>> wrote:
>>
>>> Reduced test app attached and below is gdb backtrace. I suspect something
>>> is not initialized properly but I'm not very familiar with this code.
>>>
>>> Vadim
>>>
>>>
>>> Program received signal SIGFPE, Arithmetic exception.
>>> 0x00007ffff69058d7 in eg_surface_init_2d (surf_man=0x633ea0,
>>> surf=0x88d848, level=0x88dea8, bpe=1, tile_split=0, offset=65536,
>>> start_level=0)
>>>       at radeon_surface.c:651
>>> 651             slice_pt = tileb / tile_split;
>>>
>>> #0  0x00007ffff69058d7 in eg_surface_init_2d (surf_man=0x633ea0,
>>> surf=0x88d848, level=0x88dea8, bpe=1, tile_split=0, offset=65536,
>>> start_level=0)
>>>       at radeon_surface.c:651
>>> #1  0x00007ffff6905eea in eg_surface_init_2d_miptrees (surf_man=0x633ea0,
>>> surf=0x88d848) at radeon_surface.c:807
>>> #2  0x00007ffff6906062 in eg_surface_init (surf_man=0x633ea0,
>>> surf=0x88d848) at radeon_surface.c:863
>>> #3  0x00007ffff6907fe6 in radeon_surface_init (surf_man=0x633ea0,
>>> surf=0x88d848) at radeon_surface.c:1901
>>> #4  0x00007ffff713260b in radeon_drm_winsys_surface_init (rws=0x6339a0,
>>> surf=0x88d848) at radeon_drm_winsys.c:477
>>> #5  0x00007ffff70a3e1c in r600_setup_surface (screen=0x6340d0,
>>> rtex=0x88d760, pitch_in_bytes_override=0) at r600_texture.c:203
>>> #6  0x00007ffff70a4774 in r600_texture_create_object (screen=0x6340d0,
>>> base=0x7fffffffd6d0, pitch_in_bytes_override=0, buf=0x0,
>>> surface=0x7fffffffc8e0)
>>>       at r600_texture.c:432
>>> #7  0x00007ffff70a5268 in r600_texture_create (screen=0x6340d0,
>>> templ=0x7fffffffd6d0) at r600_texture.c:607
>>> #8  0x00007ffff708a5bd in r600_resource_create (screen=0x6340d0,
>>> templ=0x7fffffffd6d0) at r600_resource.c:38
>>> #9  0x00007ffff7125579 in dri2_drawable_process_buffers
>>> (drawable=0x88af80, buffers=0x88aea0, buffer_count=1, atts=0x88b628,
>>> att_count=2) at dri2.c:283
>>> #10 0x00007ffff712590a in dri2_allocate_textures (drawable=0x88af80,
>>> statts=0x88b628, statts_count=2) at dri2.c:404
>>> #11 0x00007ffff7123e6a in dri_st_framebuffer_validate (stfbi=0x88af80,
>>> statts=0x88b628, count=2, out=0x7fffffffd840) at dri_drawable.c:81
>>> #12 0x00007ffff6e461c1 in st_framebuffer_validate (stfb=0x88b1e0,
>>> st=0x883870) at ../../src/mesa/state_tracker/**st_manager.c:193
>>>
>>> #13 0x00007ffff6e472a8 in st_api_make_current (stapi=0x7ffff761b9e0
>>> <st_gl_api>, stctxi=0x883870, stdrawi=0x88af80, streadi=0x88af80)
>>>       at ../../src/mesa/state_tracker/**st_manager.c:721
>>>
>>> #14 0x00007ffff7122ce8 in dri_make_current (cPriv=0x7fdb70,
>>> driDrawPriv=0x88af40, driReadPriv=0x88af40) at dri_context.c:255
>>> #15 0x00007ffff6c6ba1f in driBindContext (pcp=0x7fdb70, pdp=0x88af40,
>>> prp=0x88af40) at ../../../../src/mesa/drivers/**dri/common/dri_util.c:382
>>>
>>> #16 0x00007ffff7dc57e3 in dri2_bind_context (context=0x7fd9d0,
>>> old=0x616650, draw=67108873, read=67108873) at dri2_glx.c:172
>>> #17 0x00007ffff7d8c253 in MakeContextCurrent (dpy=0x602040,
>>> draw=67108873,
>>> read=67108873, gc_user=0x7fd9d0) at glxcurrent.c:269
>>> #18 0x000000384e82713c in fgOpenWindow () from /lib64/libglut.so.3
>>> #19 0x000000384e825afa in fgCreateWindow () from /lib64/libglut.so.3
>>> #20 0x000000384e825b95 in fgCreateMenu () from /lib64/libglut.so.3
>>> #21 0x000000384e823cd3 in glutCreateMenu () from /lib64/libglut.so.3
>>> #22 0x0000000000400816 in main (argc=1, argv=0x7fffffffdf18) at test.c:17
>>>
>>>
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>>>
>>
>
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