x86, UV: Make kdump avoid stack dumps

[karo-tx-linux.git] / arch / x86 / kernel / apic / x2apic_uv_x.c

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index e46f98f36e31f6e1b85211a87ea62de0c497cf6c..7b598b84c902e62f9f852d78c896acb03d4ba318 100644 (file)
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -604,6 +604,10 @@ int uv_handle_nmi(struct notifier_block *self, unsigned long reason, void *data)
 {
        if (reason != DIE_NMI_IPI)
                return NOTIFY_OK;
+
+       if (in_crash_kexec)
+               /* do nothing if entering the crash kernel */
+               return NOTIFY_OK;
        /*
         * Use a lock so only one cpu prints at a time
         * to prevent intermixed output.