This is a bugfix patch set for crash_kexec_post_notifiers boot option which allows users to call panic notifiers and kmsg dumpers before kdump. The main patch is PATCH 3/3, and it fixes two problems reported by Daniel Walker (https://lkml.org/lkml/2015/6/24/44). Problem 1: If crash_kexec_post_notifiers boot option is specified, some shutting down process which assume other cpus are still alive don't work properly. Problem 2: If crash_kexec_post_notifiers boot option is specified, register information of other cpus are not saved to crash dumps. PATCH 3/3 is also another solution for a bug reported by Daisuke Hatayama (https://lkml.org/lkml/2015/5/15/284). So, this patch replace commits 5375b70 and f45d85f which fix the bug. --- Hidehiro Kawai (3): panic: Disable crash_kexec_post_notifiers if kdump is not available kexec: Pass panic message to crash_kexec() kexec: Change the timing of callbacks related to "crash_kexec_post_notifiers" boot option Documentation/kernel-parameters.txt | 4 ++ arch/arm/kernel/traps.c | 2 + arch/arm64/kernel/traps.c | 2 + arch/metag/kernel/traps.c | 2 + arch/mips/kernel/traps.c | 2 + arch/powerpc/kernel/traps.c | 2 + arch/s390/kernel/ipl.c | 2 + arch/sh/kernel/traps.c | 2 + arch/x86/kernel/dumpstack.c | 2 + arch/x86/platform/uv/uv_nmi.c | 2 + include/linux/kernel.h | 1 + include/linux/kexec.h | 7 +++- kernel/kexec.c | 62 ++++++++++++++++++++++++++++++----- kernel/panic.c | 23 ++++--------- 14 files changed, 80 insertions(+), 35 deletions(-) -- Hidehiro Kawai Hitachi, Ltd. Research & Development Group -- To unsubscribe from this list: send the line "unsubscribe linux-metag" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
