From 77e26cca20013e9352a8df86a54640543304a23a Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Thu, 11 Jun 2009 16:04:35 +0900 Subject: [PATCH] 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 Signed-off-by: Hidetoshi Seto LKML-Reference: <4A30AC83.5010708@jp.fujitsu.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mcheck/mce.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index d4e7b5947a0..6a3127ecb5c 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, ¬ify_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(); -- 2.11.4.GIT