[PATCH] kdump x86_64 nmi event notification fix
After a crash we should wait for NMI IPI event and not for external NMI or
NMI watchdog tick.
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
diff --git a/arch/x86_64/kernel/crash.c b/arch/x86_64/kernel/crash.c
index 44c8af6..fc57a13 100644
--- a/arch/x86_64/kernel/crash.c
+++ b/arch/x86_64/kernel/crash.c
@@ -102,7 +102,7 @@
struct pt_regs *regs;
int cpu;
- if (val != DIE_NMI)
+ if (val != DIE_NMI_IPI)
return NOTIFY_OK;
regs = ((struct die_args *)data)->regs;
@@ -114,7 +114,7 @@
* an NMI if system was initially booted with nmi_watchdog parameter.
*/
if (cpu == crashing_cpu)
- return 1;
+ return NOTIFY_STOP;
local_irq_disable();
crash_save_this_cpu(regs, cpu);