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authorDon Zickus <dzickus@redhat.com>2011-02-09 14:02:33 -0500
committerIngo Molnar <mingo@elte.hu>2011-02-10 07:21:59 -0500
commit5651f7f47dbb1cf2b95a60582546db4ff508e2b4 (patch)
tree9dbf5728f3fe1a73f48de290ae732b06574d646c /kernel/watchdog.c
parent100b33c8bd8a3235fd0b7948338d6cbb3db3c63d (diff)
watchdog, nmi: Lower the severity of error messages
During boot if the hardlockup detector fails to initialize, it complains very loudly. Some failures should be expected under certain situations, ie no lapics, or resource in-use. Tone those error messages down a bit. Keep the rest at a high level. Reported-by: Paul Bolle <pebolle@tiscali.nl> Tested-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Don Zickus <dzickus@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <1297278153-21111-1-git-send-email-dzickus@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/watchdog.c')
-rw-r--r--kernel/watchdog.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index f37f974aa81b..18bb15776c57 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -363,8 +363,14 @@ static int watchdog_nmi_enable(int cpu)
363 goto out_save; 363 goto out_save;
364 } 364 }
365 365
366 printk(KERN_ERR "NMI watchdog disabled for cpu%i: unable to create perf event: %ld\n", 366
367 cpu, PTR_ERR(event)); 367 /* vary the KERN level based on the returned errno */
368 if (PTR_ERR(event) == -EOPNOTSUPP)
369 printk(KERN_INFO "NMI watchdog disabled (cpu%i): not supported (no LAPIC?)\n", cpu);
370 else if (PTR_ERR(event) == -ENOENT)
371 printk(KERN_WARNING "NMI watchdog disabled (cpu%i): hardware events not enabled\n", cpu);
372 else
373 printk(KERN_ERR "NMI watchdog disabled (cpu%i): unable to create perf event: %ld\n", cpu, PTR_ERR(event));
368 return PTR_ERR(event); 374 return PTR_ERR(event);
369 375
370 /* success path */ 376 /* success path */