[Bug 45993] New: r300: SIGSEGV when trying to open a WebGL page with Firefox 10

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=45993

             Bug #: 45993
           Summary: r300: SIGSEGV when trying to open a WebGL page with
                    Firefox 10
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: grsfdhj at tiscali.it


Created attachment 56967
  --> https://bugs.freedesktop.org/attachment.cgi?id=56967
Backtrace of the crash

When trying to open a WebGL enabled page such as

http://get.webgl.org

Firefox instantly crashes. When setting the LIBGL_DEBUG environment variable to "verbose", the following message is seen on the terminal:

radeon: Cannot get a relocation in radeon_drm_cs_write_reloc.

System specs:
CPU: AMD Athlon 64 FX-55
GPU: ATI Technologies Inc R420 JP [Radeon X800XT]
OS: Slackware64 13.37
kernel: 3.2.5 (vanilla)
Mesa git snapshot @ 2012-02-11
libdrm-2.4.31
Mozilla Firefox 10.0.1 x86_64

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