[PATCH] Fix up panic messages for different NMI panics

When a unknown NMI happened the panic would claim a NMI watchdog timeout.
Also it would check the variable set by nmi_watchdog=panic and panic then.

Fix up the panic message to be generic
Unconditionally panic on unknown NMI when panic on unknown nmi is enabled.

Noticed by Jan Beulich

Cc: jbeulich@novell.com

Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index 5a35975e576..1b76d157452 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -695,7 +695,8 @@ int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason)
                  */
                 local_inc(&__get_cpu_var(alert_counter));
                 if (local_read(&__get_cpu_var(alert_counter)) == 5*nmi_hz)
-                        die_nmi("NMI Watchdog detected LOCKUP on CPU %d\n", regs);
+                        die_nmi("NMI Watchdog detected LOCKUP on CPU %d\n", regs,
+                                panic_on_timeout);
         } else {
                 __get_cpu_var(last_irq_sum) = sum;
                 local_set(&__get_cpu_var(alert_counter), 0);
@@ -765,7 +766,7 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu)
         char buf[64];
 
         sprintf(buf, "NMI received for unknown reason %02x\n", reason);
-        die_nmi(buf,regs);
+        die_nmi(buf, regs, 1);  /* Always panic here */
         return 0;
 }