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
