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mce: Panic when a core has reached a timeout

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There is very little and maybe practically nothing we can do to recover
from a system where at least one core has reached a timeout during the
whole monarch cores gathering. So panic when that happens.

Link: http://lkml.kernel.org/r/20140523091041.GA21332@pd.tnic
Signed-off-by: Borislav Petkov <bp@suse.de>
This commit is contained in:
Borislav Petkov 2014-05-23 11:06:35 +02:00
parent 9c15a24b03
commit 716079f66e
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kernel/cpu/mcheck/mce.c
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@ -704,8 +704,7 @@ static int mce_timed_out(u64 *t)
if (!mca_cfg.monarch_timeout)
goto out;
if ((s64)*t < SPINUNIT) {
/* CHECKME: Make panic default for 1 too? */
if (mca_cfg.tolerant < 1)
if (mca_cfg.tolerant <= 1)
mce_panic("Timeout synchronizing machine check over CPUs",
NULL, NULL);
cpu_missing = 1;