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authorAndi Kleen <ak@suse.de>2005-09-12 18:49:24 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-12 10:49:55 -0700
commitb4452218c4b7a579056d439b73a668b71654c137 (patch)
treea83d03b2bfc5a33a2f89a3d6b677b764ea3ac183 /arch
parent70556463487f33bc6728a7596b97f86b811aad22 (diff)
[PATCH] x86-64: Enable interrupts during delay calibration on APs
We used to disable them to work around a bug, but that is not needed anymore. Keeping them enabled avoids the NMI watchdog triggering in some cases. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86_64/kernel/smpboot.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index 4efe36fe99a..277ce5e91e0 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -413,8 +413,13 @@ void __cpuinit smp_callin(void)
/*
* Get our bogomips.
+ *
+ * Need to enable IRQs because it can take longer and then
+ * the NMI watchdog might kill us.
*/
+ local_irq_enable();
calibrate_delay();
+ local_irq_disable();
Dprintk("Stack at about %p\n",&cpuid);
disable_APIC_timer();