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Groups > linux.kernel > #1351596

[PATCH 4/5] x86/mce: Clarify comments regarding deferred error

From Borislav Petkov <bp@alien8.de>
Newsgroups linux.kernel
Subject [PATCH 4/5] x86/mce: Clarify comments regarding deferred error
Date 2016-03-07 14:10 +0100
Message-ID <ra358-3fU-17@gated-at.bofh.it> (permalink)
References <ra357-3fU-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>

Deferred errors indicate errors that hardware could not fix. But it
still does not cause any interruption to program flow. So it does not
generate any #MC and UC bit in MCx_STATUS is not set.

Correct comment.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1457021458-2522-5-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/x86/include/asm/mce.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 72f86882d62a..cfff34172be0 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -40,7 +40,7 @@
 #define MCI_STATUS_AR	 (1ULL<<55)  /* Action required */
 
 /* AMD-specific bits */
-#define MCI_STATUS_DEFERRED	(1ULL<<44)  /* declare an uncorrected error */
+#define MCI_STATUS_DEFERRED	(1ULL<<44)  /* uncorrected error, deferred exception */
 #define MCI_STATUS_POISON	(1ULL<<43)  /* access poisonous data */
 #define MCI_STATUS_TCC		(1ULL<<55)  /* Task context corrupt */
 
-- 
2.3.5

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Thread

[PATCH 0/5] x86/RAS: Enable error decoding of AMD Scalable MCA errors Borislav Petkov <bp@alien8.de> - 2016-03-07 14:10 +0100
  [PATCH 3/5] x86/mce/AMD: Fix logic to obtain block address Borislav Petkov <bp@alien8.de> - 2016-03-07 14:10 +0100
  [PATCH 1/5] x86/mce: Move MCx_CONFIG MSR definitions Borislav Petkov <bp@alien8.de> - 2016-03-07 14:10 +0100
  [PATCH 4/5] x86/mce: Clarify comments regarding deferred error Borislav Petkov <bp@alien8.de> - 2016-03-07 14:10 +0100
  [PATCH 5/5] x86/mce/AMD: Document some functionality Borislav Petkov <bp@alien8.de> - 2016-03-07 14:10 +0100

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