Valgrind errors in OpenGL.framework (mac)

[burg]

I don't know how to debug this, but it's pretty reliable (at least for me on OSX 10.7). It doesn't seem to result in any crashes, but that may be luck.

==12435== Thread 1:
==12435== Conditional jump or move depends on uninitialised value(s)
==12435==    at 0xCB69993: gldCreateVertexArray (in /System/Library/Extensions/ATIRadeonX3000GLDriver.bundle/Contents/MacOS/ATIRadeonX3000GLDriver)
==12435==    by 0xCB95C82: gldUpdateDispatch (in /System/Library/Extensions/ATIRadeonX3000GLDriver.bundle/Contents/MacOS/ATIRadeonX3000GLDriver)
==12435==    by 0xADEB14F: gleDoSelectiveDispatchCore (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==12435==    by 0xAD1C256: glClear_Exec (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==12435==    by 0xCC529D: __morestack (in /usr/local/lib/rustc/x86_64-apple-darwin/lib/librustrt.dylib)
==12435==    by 0x4072EFFFFFFFFFFF: ???
==12435==    by 0x101501E5F: ???
==12435==    by 0x1006BA82F: ???
==12435==    by 0xCB1618: rust_task::call_on_rust_stack(void*, void*) (in /usr/local/lib/rustc/x86_64-apple-darwin/lib/librustrt.dylib)
==12435==    by 0x1006BA82F: ???
==12435==    by 0xA2171F: display_callback::_1eb5d0efb52966e::_01 (in /Users/burg/repos/servo/build/src/rust-glut/libglut-94839cbfe144198-0.1.dylib)
==12435==    by 0x10159EFBF: ???
==12435== 

[DemiMarie]

This looks like it related to split stacks, which Rust does not use anymore. Perhaps this should be closed?

[jdm]

Very plausible!