From: Andi Kleen <andi@firstfloor.org>
To: ying.huang@intel.com, hpa@zytor.com,
linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@linutronix.de
Subject: [PATCH] [4/4] x86: MCE: Fix EIPV behaviour with !PCC
Date: Tue, 7 Apr 2009 17:06:57 +0200 (CEST) [thread overview]
Message-ID: <20090407150657.61C4E1D046E@basil.firstfloor.org> (raw)
In-Reply-To: <20090407506.675031434@firstfloor.org>
From: Huang Ying <ying.huang@intel.com>
Impact: Spec compliance
When tolerant == 0, system should go panic instead of send SIGBUS even
for a MCE with EPIV && !PCC on user space.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
arch/x86/kernel/cpu/mcheck/mce_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/arch/x86/kernel/cpu/mcheck/mce_64.c
===================================================================
--- linux.orig/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-04-07 16:09:59.000000000 +0200
+++ linux/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-04-07 16:43:14.000000000 +0200
@@ -401,7 +401,7 @@
* force_sig() takes an awful lot of locks and has a slight
* risk of deadlocking.
*/
- if (user_space) {
+ if (user_space && tolerant > 0) {
force_sig(SIGBUS, current);
} else if (panic_on_oops || tolerant < 2) {
mce_panic("Uncorrected machine check",
next prev parent reply other threads:[~2009-04-07 15:08 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-07 15:06 [PATCH] [0/4] x86: MCE: Machine check bug fix series for 2.6.30 Andi Kleen
2009-04-07 15:06 ` [PATCH] [1/4] x86: MCE: Make polling timer interval per CPU Andi Kleen
2009-04-08 3:43 ` Hidetoshi Seto
2009-04-08 10:43 ` Andi Kleen
2009-04-08 11:30 ` Hidetoshi Seto
2009-04-08 11:40 ` Andi Kleen
2009-04-09 10:28 ` [PATCH] [1/4] x86: MCE: Make polling timer interval per CPU v2 Andi Kleen
2009-04-07 15:06 ` [PATCH] [2/4] x86: MCE: Fix boot logging logic Andi Kleen
2009-04-07 15:06 ` [PATCH] [3/4] x86: MCE: Improve mce_get_rip Andi Kleen
2009-04-08 8:15 ` Hidetoshi Seto
2009-04-08 10:06 ` Andi Kleen
2009-04-09 4:59 ` Hidetoshi Seto
2009-04-09 7:14 ` Andi Kleen
2009-04-09 9:59 ` Hidetoshi Seto
2009-04-09 10:13 ` Andi Kleen
2009-04-10 4:38 ` Hidetoshi Seto
2009-04-10 8:25 ` Andi Kleen
2009-04-10 9:49 ` Hidetoshi Seto
2009-04-23 9:43 ` Huang Ying
2009-04-24 6:16 ` Hidetoshi Seto
2009-04-24 6:35 ` Huang Ying
2009-04-24 7:28 ` Hidetoshi Seto
2009-04-24 8:50 ` Andi Kleen
2009-04-24 8:52 ` Huang Ying
2009-04-24 10:11 ` Hidetoshi Seto
2009-04-07 15:06 ` Andi Kleen [this message]
2009-04-23 9:43 ` [PATCH] [4/4] x86: MCE: Fix EIPV behaviour with !PCC Huang Ying
2009-04-23 20:49 ` H. Peter Anvin
2009-04-24 8:35 ` Andi Kleen
2009-04-24 0:27 ` Hidetoshi Seto
2009-04-24 1:11 ` Huang Ying
2009-04-24 5:40 ` H. Peter Anvin
2009-04-24 8:46 ` Andi Kleen
2009-04-24 10:30 ` Hidetoshi Seto
2009-04-24 16:32 ` H. Peter Anvin
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