From: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx>
The flags nmi_show_regs should be set before send NMI.
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx>
---
arch/x86/kernel/nmi_64.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/nmi_64.c b/arch/x86/kernel/nmi_64.c
index d187ab9..69cc737 100644
--- a/arch/x86/kernel/nmi_64.c
+++ b/arch/x86/kernel/nmi_64.c
@@ -327,11 +327,11 @@ void nmi_show_all_regs(void)
if (system_state == SYSTEM_BOOTING)
return;
- smp_send_nmi_allbutself();
-
for_each_online_cpu(i)
nmi_show_regs[i] = 1;
+ smp_send_nmi_allbutself();
+
for_each_online_cpu(i) {
while (nmi_show_regs[i] == 1)
barrier();
--
1.5.4.1
--
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