[Mesa-dev] Assertion failure on SandyBridge

[Anuj Phogat]

On Wed, Jan 25, 2012 at 12:22 PM, Paul Berry <stereotype441 at gmail.com>wrote:

> On 25 January 2012 11:42, Anuj Phogat <anuj.phogat at gmail.com> wrote:
>
>> Hi,
>>
>> I'm getting following assertion failure on executing any OpenGL
>> application including glxinfo with mesa master (dc435ae):
>>
>> glxinfo: brw_program.c:261: brwInitFragProgFuncs: Assertion
>> `functions->ProgramStringNotify == _tnl_program_string' failed.
>>
>> Program received signal SIGABRT, Aborted.
>> 0x00110416 in __kernel_vsyscall ()
>> (gdb) bt
>> #0  0x00110416 in __kernel_vsyscall ()
>> #1  0x4dc3698f in raise () from /lib/libc.so.6
>> #2  0x4dc382d5 in abort () from /lib/libc.so.6
>> #3  0x4dc2f6a5 in __assert_fail_base () from /lib/libc.so.6
>> #4  0x4dc2f757 in __assert_fail () from /lib/libc.so.6
>> #5  0x00221850 in brwInitFragProgFuncs (functions=0xbfffeb30) at
>> brw_program.c:261
>> #6  0x0020d3e8 in brwInitDriverFunctions (functions=0xbfffeb30,
>> screen=0x805fd38) at brw_context.c:117
>> #7  brwCreateContext (api=0, mesaVis=0x8063040, driContextPriv=0x8066180,
>> sharedContextPrivate=0x0) at brw_context.c:148
>> #8  0x001fcde8 in intelCreateContext (api=API_OPENGL, mesaVis=0x8063040,
>> driContextPriv=0x8066180, major_version=1, minor_version=0, flags=0,
>> error=0xbfffee9c,
>>     sharedContextPrivate=0x0) at intel_screen.c:557
>> #9  0x002915fb in dri2CreateContextAttribs (screen=0x805fc70, api=0,
>> config=0x8063040, shared=0x0, num_attribs=0, attribs=0x0, error=0xbfffee9c,
>> data=0x805a850)
>>     at ../common/dri_util.c:236
>> #10 0x002917b7 in dri2CreateNewContextForAPI (screen=0x805fc70, api=0,
>> config=0x8063040, shared=0x0, data=0x805a850) at ../common/dri_util.c:254
>> #11 0x002917ef in dri2CreateNewContext (screen=0x805fc70,
>> config=0x8063040, shared=0x0, data=0x805a850) at ../common/dri_util.c:262
>> #12 0x00163244 in dri2_create_context (base=0x805a390,
>> config_base=0x8066cc0, shareList=0x0, renderType=32788) at dri2_glx.c:213
>> #13 0x0012bb91 in CreateContext (dpy=0x804e008, generic_id=146,
>> config=0x8066cc0, shareList_user=0x0, allowDirect=1, code=3,
>> renderType=32788, screen=0)
>>     at glxcmds.c:276
>> #14 0x0012c023 in glXCreateContext (dpy=0x804e008, vis=0x805a6b8,
>> shareList=0x0, allowDirect=1) at glxcmds.c:381
>> #15 0x08048fc3 in print_screen_info (limits=0 '\000', allowDirect=1,
>> scrnum=0, dpy=0x804e008) at glxinfo.c:430
>> #16 main (argc=1, argv=0xbffff254) at glxinfo.c:1255
>>
>>
>> I also verified that i'm using latest drm (66518ab). Is anyone else
>> seeing similar errors? or am i missing something?
>>
>> Thanks
>> Anuj
>>
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>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
>>
>>
> That's a surprising failure, since that assertion would only be expected
> to be hit if brwInitFragProgFuncs() got called more than once on the same
> context.  That in turn should only happen if the driver's CreateContext()
> function got called more than once on the same context, and it's hard to
> see how dri2CreateContextAttribs() would ever do that.
>
> Note: I've heard that there have been some build problems recently; have
> you tried building from scratch just to be sure?  I happen to be
> reinstalling my OS today, so I've just done a clean build, install, and
> piglit run on mesa commit dc435ae, and everything looks fine.


> If a clean build doesn't help for you, I'd recommend either bisecting to
> try to see if a recent commit introduced the problem, or else using gdb to
> see if brwInitFragProgFuncs() is getting called multiple times, and if so,
> why.
>
clean build didn't help. It shows assertion failure while executing
 brwInitFragProgFuncs() for the first time.
A fresh clone of mesa git repository works fine.

Thanks
Anuj
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