[PATCH v2 2/2] x86: mce: comment about MCE synchronization timeout on definition of tolerant

Naoya Horiguchi
2015-02-27T05:02:34Z

commit 716079f66eac ("mce: Panic when a core has reached a timeout") changed
the behavior of mca_cfg->tolerant. So let's add comment about it.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
---
arch/x86/kernel/cpu/mcheck/mce.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git v3.19.orig/arch/x86/kernel/cpu/mcheck/mce.c v3.19/arch/x86/kernel/cpu/mcheck/mce.c
index 10359ae1f558..abdd2631036b 100644
--- v3.19.orig/arch/x86/kernel/cpu/mcheck/mce.c
+++ v3.19/arch/x86/kernel/cpu/mcheck/mce.c
@@ -69,8 +69,10 @@ struct mca_config mca_cfg __read_mostly = {
/*
* Tolerant levels:
* 0: always panic on uncorrected errors, log corrected errors
- * 1: panic or SIGBUS on uncorrected errors, log corrected errors
- * 2: SIGBUS or log uncorrected errors (if possible), log corr. errors
+ * 1: panic or SIGBUS on uncorrected errors, log corrected errors,
+ * panic on MCE synchronization timeout.
+ * 2: SIGBUS or log uncorrected errors (if possible), log corr. errors,
+ * no panic on MCE synchronization timeout.
* 3: never panic or SIGBUS, log all errors (for testing only)
*/
.tolerant = 1,
--
1.9.3