> Also, people who play games with FP actually change the FP data on the
> stack frame, and depend on signal return to reload it. Admittedly I've
> only ever seen this on SIGFPE, but anyway - this is all done with integer
> instructions that just touch bitpatterns on the stack.. The kernel can't
> catch it sanely.
Could the fp state be put on its own page and the dirty bit
evaluated in the decision whether to restore fpu state ?
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This archive was generated by hypermail 2b29 : Wed Aug 07 2002 - 22:00:28 EST