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| author | Ingo Molnar <mingo@elte.hu> | 2008-03-27 23:39:42 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-04 18:36:45 +0200 |
| commit | 9c9b81f77330ddc003a2de2f35fa6a20410c1a62 (patch) | |
| tree | 9c96b2827aea1cd44770330ea28ff5bf65077f8e /arch | |
| parent | 4f14bdef41e599e218d71e3d0abf339d65e9b480 (diff) | |
| download | lwn-9c9b81f77330ddc003a2de2f35fa6a20410c1a62.tar.gz lwn-9c9b81f77330ddc003a2de2f35fa6a20410c1a62.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/perfctr-watchdog.c | 4 |
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) { 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 |