| commit | 0a5ace2ab08d45cd78d7ef0067cdcd5c812ac54f | |
| author | Andi Kleen <ak@suse.de> | |
| Thu, 5 Oct 2006 16:47:22 +0000 (5 18:47 +0200) | ||
| committer | Andi Kleen <andi@basil.nowhere.org> | |
| Thu, 5 Oct 2006 16:47:22 +0000 (5 18:47 +0200) | ||
| tree | a4da5e79010de2391ee92d6a71b2a7217ed68d61 | treesnapshot (tar.gz zip) |
| parent | 51ec28e1b2cb267a09a0b8eac1ccf8d61b7268bf | commitdiff |
[PATCH] x86-64: Fix FPU corruption
This reverts an earlier patch that was found to cause FPU
state corruption. I think the corruption happens because
unlazy_fpu() can cause FPU exceptions and when it happens
after the current switch some processing would affect
the state in the wrong process.
Thanks to Douglas Crosher and Tom Hughes for testing.
Cc: jbeulich@novell.com
Signed-off-by: Andi Kleen <ak@suse.de>
This reverts an earlier patch that was found to cause FPU
state corruption. I think the corruption happens because
unlazy_fpu() can cause FPU exceptions and when it happens
after the current switch some processing would affect
the state in the wrong process.
Thanks to Douglas Crosher and Tom Hughes for testing.
Cc: jbeulich@novell.com
Signed-off-by: Andi Kleen <ak@suse.de>
| arch/x86_64/kernel/process.c | diffblobblamehistory |