The patch titled
Subject: x86 mce: use new printk recursion disabling interface
has been added to the -mm tree. Its filename is
x86-mce-use-new-printk-recursion-disabling-interface.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: ShuoX Liu <shuox.liu@xxxxxxxxx>
Subject: x86 mce: use new printk recursion disabling interface
Disable printk recursion to make sure the MCE logs are printed out. We
hit it when running a MTBF testing on a Android atom mobile.
Signed-off-by: Yanmin Zhang <yanmin_zhang@xxxxxxxxxxxxxxx>
Signed-off-by: ShuoX Liu <shuox.liu@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/cpu/mcheck/mce.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN arch/x86/kernel/cpu/mcheck/mce.c~x86-mce-use-new-printk-recursion-disabling-interface arch/x86/kernel/cpu/mcheck/mce.c
--- a/arch/x86/kernel/cpu/mcheck/mce.c~x86-mce-use-new-printk-recursion-disabling-interface
+++ a/arch/x86/kernel/cpu/mcheck/mce.c
@@ -307,6 +307,7 @@ static void mce_panic(char *msg, struct
{
int i, apei_err = 0;
+ printk_recursion_check_disable();
if (!fake_panic) {
/*
* Make sure only one CPU runs in machine check panic
@@ -361,6 +362,7 @@ static void mce_panic(char *msg, struct
panic(msg);
} else
pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
+ printk_recursion_check_enable();
}
/* Support code for software error injection */
_
Subject: Subject: x86 mce: use new printk recursion disabling interface
Patches currently in -mm which might be from shuox.liu@xxxxxxxxx are
cpuidle-move-field-disable-from-per-driver-to-per-cpu.patch
printk-add-interface-for-disabling-recursion-check.patch
x86-mce-use-new-printk-recursion-disabling-interface.patch
x86-mce-use-new-printk-recursion-disabling-interface-fix.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
