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@ -1,38 +0,0 @@ |
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# ChangeSet |
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# We need to clear all exceptions before synchronizing |
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# with the FPU, since we aren't ready to handle a FP |
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# exception here and we're getting rid of all FP state. |
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# Special thanks to Alexander Nyberg for reports and |
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# testing. Alternate patches by Sergey Vlasov and Andi |
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# Kleen, who both worked on this. |
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# Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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diff -Nru a/include/asm-i386/i387.h b/include/asm-i386/i387.h
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--- a/include/asm-i386/i387.h 2004-06-15 08:57:43 -07:00
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+++ b/include/asm-i386/i387.h 2004-06-15 08:57:43 -07:00
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@@ -34,7 +34,7 @@
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#define clear_fpu( tsk ) do { \ |
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if ( tsk->flags & PF_USEDFPU ) { \ |
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- asm volatile("fwait"); \
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+ asm volatile("fnclex ; fwait"); \
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tsk->flags &= ~PF_USEDFPU; \ |
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stts(); \ |
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} \ |
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diff -Naur a/include/asm-x86_64/i387.h b/include/asm-x86_64/i387.h
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--- a/include/asm-x86_64/i387.h 2003-08-25 13:44:44.000000000 +0200
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+++ b/include/asm-x86_64/i387.h 2004-06-13 05:27:55.000000000 +0200
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@@ -34,7 +34,7 @@
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#define clear_fpu( tsk ) do { \ |
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if ( tsk->flags & PF_USEDFPU ) { \ |
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- asm volatile("fwait"); \
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+ asm volatile("fnclex ; fwait"); \
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tsk->flags &= ~PF_USEDFPU; \ |
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stts(); \ |
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} \ |
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