Displaying 1 result from an estimated 1 matches for "featurecmpxchg16b".
2015 Oct 21
2
bad identification of the CPU pentium dual core ( penryn instead of core2 )
lvm 3.7.0 treats pentium dual core ( cpu family 6 model 23 ) as "penryn"
cpu, which triggers a serious bug :
- crashs in openGL programs when llvm is used by mesa package, llvm will
produces binary code with SSE4 instructions, which is not compatible
with pentium dual core, because this CPU doesn't support SSE4
instructions ( bad cpu opcodes ),
with llvm 3.6.2 this bug doesn't