Re: kdump on ARM

On Friday, December 10, 2010 5:54:09 pm Ken Werner wrote:

Hi there,

Does anyone know if it's possible to use kdump on an ARM board to capture a memory image of the kernel (to be later analyzed with crash for example)?

I had a quick look at the kernel config options provided by the linaro-linux tree and it seems that kexec support (CONFIG_KEXEC) is there. I assume /sbin/kexec could be used to load a dump-capture kernel. Unfortunately CONFIG_CRASH_DUMP is not available, so I don't know how to configure such a kernel. Any pointers or suggestions are appreciated.

I just saw that Mika Westerberg did some patches in this area. And I guess those haven't merged yet. https://lkml.org/lkml/2010/11/9/71

Ken