[PATCH for tip/mce3] x86, mce: fix mce printing

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* [PATCH for tip/mce3] x86, mce: fix mce printing
@ 2009-06-11  7:04 Hidetoshi Seto
  2009-06-11  9:42 ` Ingo Molnar
  2009-06-11  9:48 ` [tip:branch?] x86, mce: Fix " tip-bot for Hidetoshi Seto
  0 siblings, 2 replies; 3+ messages in thread
From: Hidetoshi Seto @ 2009-06-11  7:04 UTC (permalink / raw)
  To: linux-kernel; +Cc: Huang Ying, Ingo Molnar, H. Peter Anvin, Thomas Gleixner

This patch does:
 - Add print_mce_head() instead of first flag
 - Make header to be printed always
 - Stop double printing of corrected errors

[ This portion is originate from Huang Ying's patch ]

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
---
 arch/x86/kernel/cpu/mcheck/mce.c |   26 +++++++++++++++-----------
 1 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index d4e7b59..6a3127e 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -180,12 +180,8 @@ void mce_log(struct mce *mce)
 	set_bit(0, &notify_user);
 }
 
-static void print_mce(struct mce *m, int *first)
+static void print_mce(struct mce *m)
 {
-	if (*first) {
-		printk(KERN_EMERG "\n" KERN_EMERG "HARDWARE ERROR\n");
-		*first = 0;
-	}
 	printk(KERN_EMERG
 	       "CPU %d: Machine Check Exception: %16Lx Bank %d: %016Lx\n",
 	       m->extcpu, m->mcgstatus, m->bank, m->status);
@@ -208,6 +204,11 @@ static void print_mce(struct mce *m, int *first)
 			m->apicid);
 }
 
+static void print_mce_head(void)
+{
+	printk(KERN_EMERG "\n" KERN_EMERG "HARDWARE ERROR\n");
+}
+
 static void print_mce_tail(void)
 {
 	printk(KERN_EMERG "This is not a software problem!\n"
@@ -234,7 +235,6 @@ static void wait_for_panic(void)
 static void mce_panic(char *msg, struct mce *final, char *exp)
 {
 	int i;
-	int first = 1;
 
 	/*
 	 * Make sure only one CPU runs in machine check panic
@@ -245,23 +245,27 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
 
 	bust_spinlocks(1);
 	console_verbose();
+	print_mce_head();
 	/* First print corrected ones that are still unlogged */
 	for (i = 0; i < MCE_LOG_LEN; i++) {
 		struct mce *m = &mcelog.entry[i];
-		if ((m->status & MCI_STATUS_VAL) &&
-			!(m->status & MCI_STATUS_UC))
-			print_mce(m, &first);
+		if (!(m->status & MCI_STATUS_VAL))
+			continue;
+		if (!(m->status & MCI_STATUS_UC))
+			print_mce(m);
 	}
 	/* Now print uncorrected but with the final one last */
 	for (i = 0; i < MCE_LOG_LEN; i++) {
 		struct mce *m = &mcelog.entry[i];
 		if (!(m->status & MCI_STATUS_VAL))
 			continue;
+		if (!(m->status & MCI_STATUS_UC))
+			continue;
 		if (!final || memcmp(m, final, sizeof(struct mce)))
-			print_mce(m, &first);
+			print_mce(m);
 	}
 	if (final)
-		print_mce(final, &first);
+		print_mce(final);
 	if (cpu_missing)
 		printk(KERN_EMERG "Some CPUs didn't answer in synchronization\n");
 	print_mce_tail();
-- 
1.6.3


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH for tip/mce3] x86, mce: fix mce printing
  2009-06-11  7:04 [PATCH for tip/mce3] x86, mce: fix mce printing Hidetoshi Seto
@ 2009-06-11  9:42 ` Ingo Molnar
  2009-06-11  9:48 ` [tip:branch?] x86, mce: Fix " tip-bot for Hidetoshi Seto
  1 sibling, 0 replies; 3+ messages in thread
From: Ingo Molnar @ 2009-06-11  9:42 UTC (permalink / raw)
  To: Hidetoshi Seto; +Cc: linux-kernel, Huang Ying, H. Peter Anvin, Thomas Gleixner


* Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> wrote:

> This patch does:
>  - Add print_mce_head() instead of first flag
>  - Make header to be printed always
>  - Stop double printing of corrected errors
> 
> [ This portion is originate from Huang Ying's patch ]
> 
> Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
> ---
>  arch/x86/kernel/cpu/mcheck/mce.c |   26 +++++++++++++++-----------
>  1 files changed, 15 insertions(+), 11 deletions(-)

Applied to tip:x86/mce3 with minor edits to the title and the 
changelog, thanks Hidetoshi!

	Ingo

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [tip:branch?] x86, mce: Fix mce printing
  2009-06-11  7:04 [PATCH for tip/mce3] x86, mce: fix mce printing Hidetoshi Seto
  2009-06-11  9:42 ` Ingo Molnar
@ 2009-06-11  9:48 ` tip-bot for Hidetoshi Seto
  1 sibling, 0 replies; 3+ messages in thread
From: tip-bot for Hidetoshi Seto @ 2009-06-11  9:48 UTC (permalink / raw)
  To: linux-tip-commits; +Cc: linux-kernel, hpa, mingo, seto.hidetoshi, tglx, mingo

Commit-ID:  77e26cca20013e9352a8df86a54640543304a23a
Gitweb:     http://git.kernel.org/tip/77e26cca20013e9352a8df86a54640543304a23a
Author:     Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
AuthorDate: Thu, 11 Jun 2009 16:04:35 +0900
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Thu, 11 Jun 2009 11:42:17 +0200

x86, mce: Fix mce printing

This patch:

 - Adds print_mce_head() instead of first flag
 - Makes the header to be printed always
 - Stops double printing of corrected errors

[ This portion originates from Huang Ying's patch ]

Originally-From: Huang Ying <ying.huang@intel.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
LKML-Reference: <4A30AC83.5010708@jp.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 arch/x86/kernel/cpu/mcheck/mce.c |   26 +++++++++++++++-----------
 1 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index d4e7b59..6a3127e 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -180,12 +180,8 @@ void mce_log(struct mce *mce)
 	set_bit(0, &notify_user);
 }
 
-static void print_mce(struct mce *m, int *first)
+static void print_mce(struct mce *m)
 {
-	if (*first) {
-		printk(KERN_EMERG "\n" KERN_EMERG "HARDWARE ERROR\n");
-		*first = 0;
-	}
 	printk(KERN_EMERG
 	       "CPU %d: Machine Check Exception: %16Lx Bank %d: %016Lx\n",
 	       m->extcpu, m->mcgstatus, m->bank, m->status);
@@ -208,6 +204,11 @@ static void print_mce(struct mce *m, int *first)
 			m->apicid);
 }
 
+static void print_mce_head(void)
+{
+	printk(KERN_EMERG "\n" KERN_EMERG "HARDWARE ERROR\n");
+}
+
 static void print_mce_tail(void)
 {
 	printk(KERN_EMERG "This is not a software problem!\n"
@@ -234,7 +235,6 @@ static void wait_for_panic(void)
 static void mce_panic(char *msg, struct mce *final, char *exp)
 {
 	int i;
-	int first = 1;
 
 	/*
 	 * Make sure only one CPU runs in machine check panic
@@ -245,23 +245,27 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
 
 	bust_spinlocks(1);
 	console_verbose();
+	print_mce_head();
 	/* First print corrected ones that are still unlogged */
 	for (i = 0; i < MCE_LOG_LEN; i++) {
 		struct mce *m = &mcelog.entry[i];
-		if ((m->status & MCI_STATUS_VAL) &&
-			!(m->status & MCI_STATUS_UC))
-			print_mce(m, &first);
+		if (!(m->status & MCI_STATUS_VAL))
+			continue;
+		if (!(m->status & MCI_STATUS_UC))
+			print_mce(m);
 	}
 	/* Now print uncorrected but with the final one last */
 	for (i = 0; i < MCE_LOG_LEN; i++) {
 		struct mce *m = &mcelog.entry[i];
 		if (!(m->status & MCI_STATUS_VAL))
 			continue;
+		if (!(m->status & MCI_STATUS_UC))
+			continue;
 		if (!final || memcmp(m, final, sizeof(struct mce)))
-			print_mce(m, &first);
+			print_mce(m);
 	}
 	if (final)
-		print_mce(final, &first);
+		print_mce(final);
 	if (cpu_missing)
 		printk(KERN_EMERG "Some CPUs didn't answer in synchronization\n");
 	print_mce_tail();

^ permalink raw reply related	[flat|nested] 3+ messages in thread

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2009-06-11  7:04 [PATCH for tip/mce3] x86, mce: fix mce printing Hidetoshi Seto
2009-06-11  9:42 ` Ingo Molnar
2009-06-11  9:48 ` [tip:branch?] x86, mce: Fix " tip-bot for Hidetoshi Seto

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