Hello Geoff,
On 14/04/16 22:21, Geoff Levand wrote:
This series adds the core support for kexec re-boot and kdump on ARM64. This
version of the series combines Takahiro's kdump patches with my kexec patches.
Please consider all patches for inclusion.
To load a second stage kernel and execute a kexec re-boot or to work with kdump
on ARM64 systems a series of patches to kexec-tools [2], 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), you should use
- gdb v7.7 or later
- crash v7.1.1 or later
I have been trying to use crash dump with your branch without much
success on juno-r2:
WARNING: could not find MAGIC_START!
crash: cannot determine base kernel version
crash: /root/vmlinux and /root/coredump.kernel do not match!
Looking at the debug log (-p 5), the translation va -> pa computed by
crash is wrong.
The physical address expected is 0x80a76b28, but crash return 0x88a76b28.
I am using crash built from [1] and the panic has been created using
/proc/sysrq-trigger.
Also, crash dump seems to always report that Xen is running even when
KVM was in used (see logs [2]) below.
Lastly, crash fails with an error after a couple of minutes (see logs [2]).
How you seen such errors during your testing?
Regards,
[1] https://github.com/crash-utility/crash
[2] http://pastebin.com/wC8w44SN
--
Julien Grall
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