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[Xen-devel] [PATCH] FPU stack fault handling

The sparse Linux trees have diverged from mainstream Linux in their
handling of FPU errors.  I think mainstream Linux is correct.

According to the Pentium developer's manual in section 7.1.9, a stack
fault is a type of invalid operation.  So stack faults will have the
invalid op bit set.  The attached patch restores this behavior.

(Something mangled my previous inline patch, so I'm attaching this one
instead.  Let's see if this one survives...)


Attachment: fpu.patch
Description: Binary data



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