[Mesa-dev] [Bug 64568] New: SIGSEGV src/mesa/main/bufferobj.c:291

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64568

          Priority: medium
            Bug ID: 64568
          Keywords: regression
                CC: maraeo at gmail.com
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: SIGSEGV src/mesa/main/bufferobj.c:291
          Severity: critical
    Classification: Unclassified
                OS: Linux (All)
          Reporter: vlee at freedesktop.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Mesa core
           Product: Mesa

mesa: a16a2d7147865634d68151d681a399f669146ff1 (master)

Run glxgears on softpipe or llvmpipe.

(gdb) bt
#0  0x00007f756787537f in _mesa_reference_buffer_object_ (ctx=0x1b19610,
ptr=0x1b540e0, bufObj=0x0) at src/mesa/main/bufferobj.c:291
#1  0x00007f7567874e6a in _mesa_reference_buffer_object (ctx=0x1b19610,
ptr=0x1b540e0, bufObj=0x0) at src/mesa/main/bufferobj.h:89
#2  0x00007f7567875c49 in _mesa_free_buffer_objects (ctx=0x1b19610) at
src/mesa/main/bufferobj.c:651
#3  0x00007f7567754ca9 in _mesa_free_context_data (ctx=0x1b19610) at
src/mesa/main/context.c:1159
#4  0x00007f756783e336 in st_destroy_context (st=0x1b6f670) at
src/mesa/state_tracker/st_context.c:315
#5  0x00007f756775174d in st_context_destroy (stctxi=0x1b6f670) at
src/mesa/state_tracker/st_manager.c:596
#6  0x00007f7567730acb in XMesaDestroyContext (c=0x1aa7960) at
src/gallium/state_trackers/glx/xlib/xm_api.c:937
#7  0x00007f75677345f2 in glXDestroyContext (dpy=0x1a91960, ctx=0x1aa7920) at
src/gallium/state_trackers/glx/xlib/glx_api.c:1363
#8  0x0000000000403755 in ?? ()
#9  0x00007f7566b4076d in __libc_start_main (main=0x402aa0, argc=1,
ubp_av=0x7ffff2c3bcd8, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7ffff2c3bcc8) at libc-start.c:226
#10 0x00000000004017b9 in ?? ()
#11 0x00007ffff2c3bcc8 in ?? ()
#12 0x000000000000001c in ?? ()
#13 0x0000000000000001 in ?? ()
#14 0x00007ffff2c3c4cf in ?? ()
#15 0x0000000000000000 in ?? ()
(gdb) frame 0
#0  0x00007f756787537f in _mesa_reference_buffer_object_ (ctx=0x1b19610,
ptr=0x1b540e0, bufObj=0x0) at src/mesa/main/bufferobj.c:291
291          oldObj->RefCount--;

614ee25077b7ffafeb87b22563d01856824fb4bc is the first bad commit
commit 614ee25077b7ffafeb87b22563d01856824fb4bc
Author: Marek Olšák <maraeo at gmail.com>
Date:   Thu May 2 02:38:43 2013 +0200

    st/mesa: initialize all program constants and UBO limits

    Also simplify UBO support checking.

    NOTE: This is a candidate for the 9.1 branch.

    Reviewed-by: Brian Paul <brianp at vmware.com>

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