Bug 4716 - glxgears segfaults in neutral_VertexAttrib4fvARB, with mach64 dri
Summary: glxgears segfaults in neutral_VertexAttrib4fvARB, with mach64 dri
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/Mach64 (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Linux (All)
: high normal
Assignee: mesa-dev
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Reported: 2005-10-08 17:04 UTC by Bill Crawford
Modified: 2012-08-14 23:06 UTC (History)
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Description Bill Crawford 2005-10-08 17:04:43 UTC
drm is opened successfully according to output. backtrace (below) captured by gdb.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208166736 (LWP 15468)]
0x00000000 in ?? ()
#0  0x00000000 in ?? ()
#1  0x0023d1e2 in neutral_VertexAttrib4fvARB (index=1, v=0x1300)
    at main/vtxfmt_tmp.h:459
#2  0x0804a483 in ?? ()
#3  0x00b094ff in __libc_start_main (main=0x8049fe9, argc=1, 
    ubp_av=0xbfbf1454, init=0x804ab34, fini=0x804ab90, 
    rtld_fini=0xae4c9d <_dl_fini>, stack_end=0xbfbf144c)
    at ../sysdeps/generic/libc-start.c:231
#4  0x08049091 in ?? ()
#1  0x0023d1e2 in neutral_VertexAttrib4fvARB (index=1, v=0x1300)
    at main/vtxfmt_tmp.h:459
459        CALL_VertexAttrib4fvARB(GET_DISPATCH(), ( index, v ));
Comment 1 Roland Scheidegger 2005-10-09 14:43:07 UTC
more specific please. Is this with direct rendering (in which case component
should be drivers/dri/mach64) or are you using for some or another reason an
indirect rendering fallback (LIBGL_DEBUG=verbose glxinfo should answer that).
Also, are you using mesa cvs or what?
Comment 2 Bill Crawford 2005-10-09 20:27:54 UTC
Looked like that function was in the body of the library, sorry. Changing component.

Mesa from CVS on client side, but it's been segfaulting since 6.3.x, only just
recently tried it again and got a trace.

Server side is xorg from cvs, built with Mesa source from 6.4 branch, as it
doesn't build against "6.5"
Comment 3 almos 2012-08-14 23:06:32 UTC
Closing after 7 years of silence. I think it's safe to assume this is fixed in current mesa, as the backtrace shows no mach64 driver functions, and AFAICT there were no problems with vertex handling in mesa/main recently. Anyway, mach64 is no longer supported by mesa.


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