https://bugs.freedesktop.org/show_bug.cgi?id=35268
Natanael Copa <natanael.c...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|NOTOURBUG |---
--- Comment #8 from Natanael Copa <natanael.c...@gmail.com> ---
initial-exec TLS and dlopen'ed libGL is still an issue with musl libc. Here is
a backtrace from a coredump of firefox:
0x664c2c6f5000
Core was generated by `/usr/lib/firefox-26.0/firefox'.
Program terminated with signal 11, Segmentation fault.
#0 0x0000664c1fb519a8 in __glXSetupForCommand (dpy=0xae298156200)
at glxext.c:917
917 glxext.c: No such file or directory.
(gdb) bt
#0 0x0000664c1fb519a8 in __glXSetupForCommand (dpy=0xae298156200)
at glxext.c:917
#1 0x0000664c1fb4ffcd in glx_context_init (gc=gc@entry=0xae298165480,
psc=psc@entry=0xae298164d60, config=config@entry=0xae29816f3e0)
at glxcmds.c:258
#2 0x0000664c1fb7b940 in dri2_create_context (base=0xae298164d60,
config_base=0xae29816f3e0, shareList=<optimized out>, renderType=32788)
at dri2_glx.c:228
#3 0x0000664c1fb4f3ed in CreateContext (dpy=dpy@entry=0xae298156200,
generic_id=141, config=0xae29816f3e0,
shareList_user=shareList_user@entry=0x0, allowDirect=<optimized out>,
code=code@entry=3, renderType=32788, screen=0) at glxcmds.c:301
#4 0x0000664c1fb4f6e1 in glXCreateContext (dpy=0xae298156200,
vis=0xae2981651e0, shareList=0x0, allowDirect=1) at glxcmds.c:430
#5 0x0000664c28f95774 in ?? () from /usr/lib/firefox-26.0/xulrunner/libxul.so
#6 0x0000664c28f95918 in ?? () from /usr/lib/firefox-26.0/xulrunner/libxul.so
#7 0x0000664c28f8da28 in ?? () from /usr/lib/firefox-26.0/xulrunner/libxul.so
#8 0x0000664c28f90e76 in ?? () from /usr/lib/firefox-26.0/xulrunner/libxul.so
#9 0x0000664c28f91127 in XRE_main ()
from /usr/lib/firefox-26.0/xulrunner/libxul.so
#10 0x00000ae2946dd30f in do_main (xreDirectory=0x664c2c16e440,
argv=0x733c6106a4c8, argc=1)
at
/home/buildozer/aports/main/firefox/src/mozilla-release/browser/app/nsBrowserApp.cpp:275
#11 main (argc=<optimized out>, argv=<optimized out>)
at
/home/buildozer/aports/main/firefox/src/mozilla-release/browser/app/nsBrowserApp.cpp:635
(gdb)
It is mesa 9.2.5, so the segfault happens in:
http://cgit.freedesktop.org/mesa/mesa/tree/src/glx/glxext.c?h=9.2#n917
gc = __glXGetCurrentContext();
I believe that __glxGetCurrentContext is defined as a macro:
http://cgit.freedesktop.org/mesa/mesa/tree/src/glx/glxcurrent.c?h=9.2#n82
I believe that it segfaults due to the use of initial-exec use:
__thread void *__glX_tls_Context __attribute__ ((tls_model("initial-exec")))
= &dummyContext;
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