K 10 svn:author V 7 davidxu K 8 svn:date V 27 2006-05-28T06:51:57.000000Z K 7 svn:log V 235 Clear high 16 bits of mxcsr register, according to Intel document, if the high 16 bits is non-zero, fxrstor instruction will generate GP fault, resulting kernel crash, this bug can be triggered by setcontext and ptrace(PT_SETXMMREGS). END