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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - dri3: chrome/chromium gpu acceleration (and therefore webgl) doesn't work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81706#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - dri3: chrome/chromium gpu acceleration (and therefore webgl) doesn't work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81706">bug 81706</a>
from <span class="vcard"><a class="email" href="mailto:haagch@frickel.club" title="Christoph Haag <haagch@frickel.club>"> <span class="fn">Christoph Haag</span></a>
</span></b>
<pre>Oh right, I had noticed that the gpu threads are segfaulting, but totally
forgot that it could be relevant here.
Ivy Bridge here:
Core was generated by `/opt/google/chrome-unstable/chrome --type=gpu-process
--channel=21942.4.5215851'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f84164044b8 in get_stencil_miptree (irb=0xf09fc2270b0) at
brw_misc_state.c:225
225 if (irb->mt->stencil_mt)
(gdb) bt full
#0 0x00007f84164044b8 in get_stencil_miptree (irb=0xf09fc2270b0) at
brw_misc_state.c:225
No locals.
#1 0x00007f8416404551 in brw_workaround_depthstencil_alignment
(brw=0xf09fd940030, clear_mask=50) at brw_misc_state.c:241
ctx = 0xf09fd940030
fb = 0xf09fea11200
rebase_depth = false
rebase_stencil = false
depth_irb = 0xf09fc22af20
stencil_irb = 0xf09fc2270b0
depth_mt = 0x0
stencil_mt = 0xf09fd9717c0
tile_x = 32767
tile_y = 2049073776
stencil_tile_x = 3849
stencil_tile_y = 4254335024
stencil_draw_x = 4271968768
stencil_draw_y = 3849
invalidate_depth = 255
invalidate_stencil = false
tile_mask_x = 4254335024
tile_mask_y = 3849
#2 0x00007f84163a6ff3 in brw_clear (ctx=0xf09fd940030, mask=50) at
brw_clear.c:235
brw = 0xf09fd940030
fb = 0xf09fea11200
partial_clear = false
tri_mask = 4254335024
#3 0x00007f841603028b in _mesa_Clear (mask=17664) at
../../src/mesa/main/clear.c:226
bufferMask = 50
ctx = 0xf09fd940030
__func__ = "_mesa_Clear"
__PRETTY_FUNCTION__ = "_mesa_Clear"
#4 0x00007f842933836a in ?? ()
No symbol table info available.
#5 0x0000000000000000 in ?? ()
No symbol table info available.</pre>
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