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