This patch series adds kdump support on arm64.
To load a crash-dump kernel to the systems, a series of patches to
kexec-tools [1], which have not yet been merged upstream, are needed.
Please update to the latest if you have been using an older version.
To examine vmcore (/proc/vmcore) on a crash-dump kernel, you can use
- crash utility (coming v7.1.6 or later) [2]
(Necessary patches have already been queued in the master.)
[1] https://git.kernel.org/cgit/linux/kernel/git/geoff/kexec-tools.git
[2] https://github.com/crash-utility/crash.git
Changes for v21 (July 6, 2016):
o Remove kexec patches.
o Rebase to arm64's for-next/core (Linux-4.7-rc4 based).
o Clarify the description about kvm in kdump.txt.
See the following link [3] for older changes:
[3] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-June/438780.html
AKASHI Takahiro (7):
arm64: kdump: reserve memory for crash dump kernel
arm64: limit memory regions based on DT property, usable-memory
arm64: kdump: implement machine_crash_shutdown()
arm64: kdump: add kdump support
arm64: kdump: add VMCOREINFO's for user-space coredump tools
arm64: kdump: enable kdump in the arm64 defconfig
arm64: kdump: update a kernel doc
James Morse (1):
Documentation: dt: usable-memory and elfcorehdr nodes for arm64 kexec
Documentation/devicetree/bindings/chosen.txt | 28 +++++
Documentation/kdump/kdump.txt | 16 ++-
arch/arm64/Kconfig | 11 ++
arch/arm64/configs/defconfig | 1 +
arch/arm64/include/asm/hardirq.h | 2 +-
arch/arm64/include/asm/kexec.h | 41 ++++++-
arch/arm64/include/asm/smp.h | 4 +
arch/arm64/kernel/Makefile | 1 +
arch/arm64/kernel/crash_dump.c | 71 ++++++++++++
arch/arm64/kernel/machine_kexec.c | 67 +++++++++++-
arch/arm64/kernel/setup.c | 7 +-
arch/arm64/kernel/smp.c | 61 +++++++++++
arch/arm64/mm/init.c | 154 +++++++++++++++++++++++++++
13 files changed, 457 insertions(+), 7 deletions(-)
create mode 100644 arch/arm64/kernel/crash_dump.c
--
2.9.0
