Messages in this thread Patch in this message | | | From | Libing Zhou <> | Subject | [PATCH] x86/nmi: Fix nmi_handle duration miscalculation | Date | Mon, 17 Aug 2020 17:04:41 +0800 |
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In nmi_check_duration(), the 'whole_msecs' value should get from 'duration' to reflect actual time duration, but not 'action->max_duration'.
Signed-off-by: Libing Zhou <libing.zhou@nokia-sbell.com> --- arch/x86/kernel/nmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c index 4fc9954a9560..c51ee659e520 100644 --- a/arch/x86/kernel/nmi.c +++ b/arch/x86/kernel/nmi.c @@ -102,7 +102,7 @@ fs_initcall(nmi_warning_debugfs); static void nmi_check_duration(struct nmiaction *action, u64 duration) { - u64 whole_msecs = READ_ONCE(action->max_duration); + u64 whole_msecs = duration; int remainder_ns, decimal_msecs; if (duration < nmi_longest_ns || duration < action->max_duration) -- 2.22.0
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