commit 1717f2096b54 ("panic, x86: Fix re-entrance problem due to panic on NMI") and commit 58c5661f2144 ("panic, x86: Allow CPUs to save registers even if looping in NMI context") introduced nmi_panic() which prevents concurrent/recursive execution of panic(). It also saves registers for the crash dump on x86. However, there are some cases where NMI handlers still use panic(). This patch set partially replaces them with nmi_panic() in those cases. --- Even if applying this patch set, some NMI or similar handlers (e.g. MCE handler) remains to use panic(). This is because I can't test them well and actual problems won't happen. For example, the possibility that normal panic and panic on MCE happen simultaneously is very low. Hidehiro Kawai (3): panic: Export panic_cpu and nmi_panic_self_stop ipmi/watchdog: Use nmi_panic() when kernel panics in NMI handler hpwdt: Use nmi_panic() when kernel panics in NMI handler drivers/char/ipmi/ipmi_watchdog.c | 2 +- drivers/watchdog/hpwdt.c | 12 ++++++++++-- kernel/panic.c | 2 ++ 3 files changed, 13 insertions(+), 3 deletions(-) -- Hidehiro Kawai Hitachi, Ltd. Research & Development Group -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html