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| author | Andi Kleen <ak@suse.de> | 2005-11-05 17:25:54 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-14 19:55:16 -0800 |
| commit | 3506229ff9968e5dbc862a50285fbea0e8821b58 (patch) | |
| tree | 76306c140f9a4bec3b3f429467a7dee32c810859 /arch/x86_64/kernel/smp.c | |
| parent | a88cde13bae3fffd6ecc812bdd02c91eafb6073e (diff) | |
| download | op-kernel-dev-3506229ff9968e5dbc862a50285fbea0e8821b58.zip op-kernel-dev-3506229ff9968e5dbc862a50285fbea0e8821b58.tar.gz | |
[PATCH] x86_64: Don't enable interrupt unconditionally in reboot path
When they were disabled before (e.g. after a panic) it's better
to keep them off, otherwise followon panics can happen from timer
interrupt handlers etc.
Drawback is that pageup in the console won't work anymore though.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/smp.c')
| -rw-r--r-- | arch/x86_64/kernel/smp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index 493a0d1..cfc3d9d 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c @@ -450,13 +450,14 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic, void smp_stop_cpu(void) { + unsigned long flags; /* * Remove this CPU: */ cpu_clear(smp_processor_id(), cpu_online_map); - local_irq_disable(); + local_irq_save(flags); disable_local_APIC(); - local_irq_enable(); + local_irq_restore(flags); } static void smp_really_stop_cpu(void *dummy) |
