From: "Andi Kleen" <[EMAIL PROTECTED]>
Could lead to a lost reschedule event when the process already rescheduled on
exception exit, and needs it again while still being in the kernel. Unlikely
case though.
Also remove one redundant cli in another entry.S path.
Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
25-akpm/arch/x86_64/kernel/entry.S | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86_64/kernel/entry.S~x86_64-fix-a-small-missing-schedule-race
arch/x86_64/kernel/entry.S
--- 25/arch/x86_64/kernel/entry.S~x86_64-fix-a-small-missing-schedule-race
2005-04-12 03:21:23.062630848 -0700
+++ 25-akpm/arch/x86_64/kernel/entry.S 2005-04-12 03:21:23.066630240 -0700
@@ -284,6 +284,7 @@ int_careful:
pushq %rdi
call schedule
popq %rdi
+ cli
jmp int_with_check
/* handle signals and tracing -- both require a full stack frame */
@@ -453,7 +454,6 @@ retint_check:
andl %edi,%edx
jnz retint_careful
retint_swapgs:
- cli
swapgs
retint_restore_args:
cli
_
-
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