Messages in this thread Patch in this message | | | Date | Mon, 04 Jun 2012 11:07:11 +0800 | From | ShuoX Liu <> | Subject | [PATCH v4 2/2] x86 mce: use new printk recursion disabling interface |
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From: ShuoX Liu <shuox.liu@intel.com>
Disable printk recursion to make sure MCE logs printed out.
Signed-off-by: Yanmin Zhang <yanmin_zhang@linux.intel.com> Signed-off-by: ShuoX Liu <shuox.liu@intel.com> --- We hit it when running a MTBF testing on a Android atom mobile. --- arch/x86/kernel/cpu/mcheck/mce.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 2afcbd2..906e838 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -306,6 +306,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp) { int i, apei_err = 0; + printk_recursion_check_disable(); if (!fake_panic) { /* * Make sure only one CPU runs in machine check panic @@ -360,6 +361,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp) panic(msg); } else pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg); + printk_recursion_check_enable(); } /* Support code for software error injection */ -- 1.7.1
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