* Ingo Molnar <[email protected]> wrote:
> > this fixed my crashes too.
>
> spoke too soon - they still trigger even with the patch applied.
the patch below fixes the crash, it was related to CONFIG_PREEMPT.
Ingo
--
fix entry.S crash with PREEMPT+PAGEALLOC
Signed-off-by: Ingo Molnar <[email protected]>
--- linux/arch/i386/kernel/entry.S.orig
+++ linux/arch/i386/kernel/entry.S
@@ -165,9 +165,9 @@ ENTRY(resume_kernel)
need_resched:
movl TI_flags(%ebp), %ecx # need_resched set ?
testb $_TIF_NEED_RESCHED, %cl
- jz restore_all
+ jz restore_nocheck
testl $IF_MASK,EFLAGS(%esp) # interrupts off (exception path) ?
- jz restore_all
+ jz restore_nocheck
call preempt_schedule_irq
jmp need_resched
#endif
-
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- References:
- crash in entry.S restore_all, 2.6.12-rc2, x86, PAGEALLOC
- Re: crash in entry.S restore_all, 2.6.12-rc2, x86, PAGEALLOC
- Re: crash in entry.S restore_all, 2.6.12-rc2, x86, PAGEALLOC
- Re: crash in entry.S restore_all, 2.6.12-rc2, x86, PAGEALLOC
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