From f5e886ef9b45a3dbfd42b054a13c755894ea8402 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Fri, 16 Sep 2016 13:23:25 -0700 Subject: [PATCH] x86/MCE: Do not look at panic_on_oops in the severity grading The MCE tolerance levels control whether we panic on a machine check or do something else like generating a signal and logging error information. This is controlled by the mce= command line parameter. However, if panic_on_oops is set, it will force a panic for such an MCE even though the user didn't want to. So don't check panic_on_oops in the severity grading anymore. One of the use cases for that is recovery from uncorrectable errors with mce=2. [ Boris: rewrite commit message. ] Signed-off-by: Yinghai Lu Acked-by: Tony Luck Cc: linux-edac Cc: x86-ml Link: http://lkml.kernel.org/r/20160916202325.4972-1-yinghai@kernel.org Signed-off-by: Borislav Petkov Signed-off-by: Thomas Gleixner --- arch/x86/kernel/cpu/mcheck/mce-severity.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c b/arch/x86/kernel/cpu/mcheck/mce-severity.c index 631356c8cca4..c7efbcfbeda6 100644 --- a/arch/x86/kernel/cpu/mcheck/mce-severity.c +++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c @@ -311,7 +311,7 @@ static int mce_severity_intel(struct mce *m, int tolerant, char **msg, bool is_e *msg = s->msg; s->covered = 1; if (s->sev >= MCE_UC_SEVERITY && ctx == IN_KERNEL) { - if (panic_on_oops || tolerant < 1) + if (tolerant < 1) return MCE_PANIC_SEVERITY; } return s->sev; -- 2.20.1