Crash during vmcore_init

[WANG Cong]

On Tue, 11 Oct 2011 16:39:05 -0700, Tim Hartrick wrote:

> Kexec,
> 
> I have been experiencing the crash below on Ubuntu 10.04 running
> 2.6.32-34-server and 2.6.38-8-server as the crashkernel on X86_64. The
> tools are:
> 
> kexec-tools	1:2.0.2-1ubuntu3
> makedumpfile	1.3.7-2
> kdump-tools	1.3.7-2
> 
> I would be interested to know if this is a known problem and if so
> whether or not there is a patch in the pipeline to correct the problem.
> 
> I will be happy to provide any other details that are required including
> debug builds if necessary.
....
> 
> [    1.322100] ioremap: invalid physical address db74000000000000 [   
> 1.327919] ------------[ cut here ]------------ [    1.332530] WARNING:
> at /build/buildd/linux-2.6.32/arch/x86/mm/ioremap.c:120 __ioremap_caller
> +0x360/0x3d0()

This probably means that kexec-tools passed some incorrect
kernel parameter to the second kernel.

So, what is the cmdline of your second kernel? And what is your
/proc/iomem of your first kernel?

Cheers.