Bug#803528: glxgears stack trace with debugging symbols

["Kingsley G. Morse Jr." <kingsley@loaner.com>]

I just learned that someone had the foresight to
provide versions of the packages involved with
debugging symbols conveniently included.

So I 

    1.) installed 
    
            libgl1-mesa-dri-dbg
            libx11-6-dbg
            libxcb1-dbg
            libgl1-mesa-dri-dbg

    2.) run glxgears in gdb again

            $ gdb glxgears
            (gdb) r
            ^c
            (gdb) bt
            (gdb) ^d
            Quit anyway? (y or n) y

    3.) and now report the stack trace, with code
        offsets

            (gdb) bt
            #0  0xb7fddbe0 in __kernel_vsyscall ()
            #1  0xb7b81e03 in __poll_nocancel () at ../sysdeps/unix/syscall-template.S:81
            #2  0xb784586d in poll (__timeout=-1, __nfds=1, __fds=0xbffff1ac) at /usr/include/i386-linux-gnu/bits/poll2.h:46
            #3  _xcb_conn_wait (c=0x8054638, cond=0xbffff28c, vector=0x0, count=0x0) at ../../src/xcb_conn.c:459
            #4  0xb784766b in wait_for_reply (c=c@entry=0x8054638, request=<optimized out>, e=0xbffff338) at ../../src/xcb_in.c:516
            #5  0xb78477c9 in xcb_wait_for_reply (c=0x8054638, request=37, e=0xbffff338) at ../../src/xcb_in.c:546
            #6  0xb7c9d816 in _XReply (dpy=0x8053a10, rep=0xbffff39c, extra=-1, discard=0) at ../../src/xcb_io.c:602
            #7  0xb7e3845e in DRI2GetBuffersWithFormat (dpy=0x8053a10, drawable=33554434, width=0x80f78c0, height=0x80f78c4, attachments=0xbffff4d4, 
                count=1, outCount=0xbffff4a8) at ../../../../src/glx/dri2.c:491
            #8  0xb7e387a9 in dri2GetBuffersWithFormat (driDrawable=0x80f78a8, width=0x80f78c0, height=0x80f78c4, attachments=0xbffff4d4, count=1, 
                out_count=0xbffff4a8, loaderPrivate=0x8061190) at ../../../../src/glx/dri2_glx.c:900
            #9  0xb6e630fd in dri2_drawable_get_buffers (count=<synthetic pointer>, atts=0x810704c, drawable=0x8106b18)
                at ../../../../../../src/gallium/state_trackers/dri/dri2.c:213
            #10 dri2_allocate_textures (ctx=0x809b050, drawable=0x8106b18, statts=0x810704c, statts_count=2)
                at ../../../../../../src/gallium/state_trackers/dri/dri2.c:407
            #11 0xb6e5fb7b in dri_st_framebuffer_validate (stctx=0x8100c20, stfbi=0x8106b18, statts=0x810704c, count=2, out=0xbffff5d0)
                at ../../../../../../src/gallium/state_trackers/dri/dri_drawable.c:83
            #12 0xb6d92657 in st_framebuffer_validate (stfb=0x8106cb8, st=st@entry=0x8100c20) at ../../../../src/mesa/state_tracker/st_manager.c:200
            #13 0xb6d93c40 in st_manager_validate_framebuffers (st=0x8100c20) at ../../../../src/mesa/state_tracker/st_manager.c:868
            #14 0xb6d3917a in st_validate_state (st=0x8100c20) at ../../../../src/mesa/state_tracker/st_atom.c:189
            #15 0xb6d40514 in st_Clear (ctx=0x80bdee8, mask=18) at ../../../../src/mesa/state_tracker/st_cb_clear.c:469
            #16 0xb6bf6fed in _mesa_Clear (mask=16640) at ../../../../src/mesa/main/clear.c:224
            #17 0x08049f4d in ?? ()
            #18 0x080496e4 in ?? ()
            #19 0xb7abca63 in __libc_start_main (main=0x80491d0, argc=1, argv=0xbffff954, init=0x804b330, fini=0x804b3a0, rtld_fini=0xb7fecca0 <_dl_fini>, 
                stack_end=0xbffff94c) at libc-start.c:287
            #20 0x08049d33 in ?? ()

Feel free to let me know if you need someone to
test a patched package.

I hope that helps,
Kingsley
-- 
Time is the fire in which we all burn.