[Bug 10215] New: Radeon driver claims to support VBOs, but segfaults on glGenBuffers

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Mar 7 10:24:43 PST 2007


           Summary: Radeon driver claims to support VBOs, but segfaults on
           Product: xorg
           Version: 7.1
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: ekoyle at gmail.com
         QAContact: xorg-team at lists.x.org

I'm some example VBO code given to me by a professor, and any machine using the
radeon driver segfaults on the call to glGenBuffers.  The code will be
temporarily available at http://esk.cs.usu.edu/~esk/VBODemo.tgz .

I'm running xorg 7.1 on debian unstable.

Here's some not-so-useful gdb foo, since I can't seem to find packages for the
debug info I need.

Breakpoint 1, VBODemo::Initialize (this=0x804aae0) at VBODemo.cpp:20
20              GLenum initStatus = glewInit();
(gdb) s
22              if( initStatus != GLEW_OK )
28              glGenBuffers(VBO_COUNT,m_VBOName);

Program received signal SIGSEGV, Segmentation fault.
0x00000000 in ?? ()
(gdb) bt
#0  0x00000000 in ?? ()
#1  0x08049103 in VBODemo::Initialize (this=0x804aae0) at VBODemo.cpp:28
#2  0x08049466 in main (argc=Cannot access memory at address 0x20
) at MainCode.cpp:82

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