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authorIngo Molnar <mingo@elte.hu>2008-03-27 23:39:42 +0100
committerIngo Molnar <mingo@elte.hu>2008-04-04 18:36:45 +0200
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 19a359472ae..b943e10ad81 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)
{
if (!wd_ops) {
probe_nmi_watchdog();
- if (!wd_ops)
+ if (!wd_ops) {
+ printk(KERN_INFO "NMI watchdog: CPU not supported\n");
return -1;
+ }
if (!wd_ops->reserve()) {
printk(KERN_ERR