https://bugs.freedesktop.org/show_bug.cgi?id=54239
Bug #: 54239
Summary: SIGSEGV src/mesa/drivers/common/meta.c:1085
Classification: Unclassified
Product: Mesa
Version: git
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: critical
Priority: medium
Component: Mesa core
AssignedTo: mesa-dev@lists.freedesktop.org
ReportedBy: v...@freedesktop.org
CC: i...@freedesktop.org, stereotype...@gmail.com
Run piglit arb_multisample-pushpop on softpipe or llvmpipe.
$ ./bin/arb_multisample-pushpop
sanity test test:
Segmentation fault (core dumped)
(gdb) bt
#0 0x00007f3cf7d83a67 in _mesa_meta_in_progress (ctx=ctx@entry=0x1ed86e0)
at ../../../src/mesa/drivers/common/meta.c:1085
#1 0x00007f3cf832c2b8 in _mesa_set_enable (ctx=0x1ed86e0, cap=32925,
state=<optimized out>) at ../../src/mesa/main/enable.c:771
#2 0x00007f3cfbd3438f in stub_glEnable (cap=32925)
at piglit/tests/util/generated_dispatch.c:5645
#3 0x0000000000400ee9 in set_enable_bits (val=true)
at piglit/tests/spec/arb_multisample/pushpop.c:97
#4 0x00000000004010d0 in pushpop (bit=0, test=0x401483 "sanity test",
affects_enabled=true, affects_other=true)
at piglit/tests/spec/arb_multisample/pushpop.c:156
#5 0x00000000004011da in piglit_init (argc=1, argv=0x7ffffa04b478)
at piglit/tests/spec/arb_multisample/pushpop.c:192
#6 0x00007f3cfbd2618c in piglit_gl_test_run (argc=1, argv=0x7ffffa04b478,
info=0x7ffffa04b370) at piglit/tests/util/piglit-framework.c:133
#7 0x0000000000400d61 in main (argc=1, argv=0x7ffffa04b478)
at piglit/tests/spec/arb_multisample/pushpop.c:54
(gdb) frame 0
#0 0x00007f3cf7d83a67 in _mesa_meta_in_progress (ctx=ctx@entry=0x1ed86e0)
at ../../../src/mesa/drivers/common/meta.c:1085
1085 return ctx->Meta->SaveStackDepth != 0;
(gdb) print ctx->Meta
$1 = (struct gl_meta_state *) 0x0
d638da23d2ec2e9c52655b1ea138249e7f8bcccb is the first bad commit
commit d638da23d2ec2e9c52655b1ea138249e7f8bcccb
Author: Paul Berry <stereotype...@gmail.com>
Date: Wed Aug 8 11:56:33 2012 -0700
meta: Don't stray outside the confines of the API specified in the context
Signed-off-by: Paul Berry <stereotype...@gmail.com>
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
:040000 040000 fbabd4b3b67869f18ba255cf3f53e3955163313e
1bee307142209333210a019471ffcac041e84ff9 M src
bisect run success
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