lkml.org 
[lkml]   [2012]   [May]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH v3 2/2] x86 mce: use new printk recursion disabling interface
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>
---
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..365c35d 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1015,6 +1015,7 @@ void do_machine_check(struct pt_regs *regs, long error_code)
DECLARE_BITMAP(toclear, MAX_NR_BANKS);
char *msg = "Unknown";

+ printk_recursion_check_disable();
atomic_inc(&mce_entry);

this_cpu_inc(mce_exception_count);
@@ -1144,6 +1145,7 @@ void do_machine_check(struct pt_regs *regs, long error_code)
mce_wrmsrl(MSR_IA32_MCG_STATUS, 0);
out:
atomic_dec(&mce_entry);
+ printk_recursion_check_enable();
sync_core();
}
EXPORT_SYMBOL_GPL(do_machine_check);
--
1.7.1


\
 
 \ /
  Last update: 2012-05-28 05:41    [W:0.131 / U:0.640 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site