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authorIngo Molnar <mingo@elte.hu>2008-03-27 18:39:42 -0400
committerIngo Molnar <mingo@elte.hu>2008-04-04 12:36:45 -0400
commit9c9b81f77330ddc003a2de2f35fa6a20410c1a62 (patch)
tree9c96b2827aea1cd44770330ea28ff5bf65077f8e
parent4f14bdef41e599e218d71e3d0abf339d65e9b480 (diff)
x86: print message if nmi_watchdog=2 cannot be enabled
right now if there's no CPU support for nmi_watchdog=2 we'll just refuse it silently. print a useful warning. Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/kernel/cpu/perfctr-watchdog.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index 19a359472ae1..b943e10ad814 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -667,8 +667,10 @@ int lapic_watchdog_init(unsigned nmi_hz)
667{ 667{
668 if (!wd_ops) { 668 if (!wd_ops) {
669 probe_nmi_watchdog(); 669 probe_nmi_watchdog();
670 if (!wd_ops) 670 if (!wd_ops) {
671 printk(KERN_INFO "NMI watchdog: CPU not supported\n");
671 return -1; 672 return -1;
673 }
672 674
673 if (!wd_ops->reserve()) { 675 if (!wd_ops->reserve()) {
674 printk(KERN_ERR 676 printk(KERN_ERR