[PATCH] kexec: powerpc: crash_dump: No backup region for PPC BookE

McClintock Matthew-B29882 B29882 at freescale.com
Mon Oct 3 14:23:55 EDT 2011

On Mon, Oct 3, 2011 at 5:18 AM, Suzuki K. Poulose <suzuki at in.ibm.com> wrote:
> Disable backup regions for BookE in case of a CRASH Dump, as they can
> be run from anywhere.
> The patch introduces --with-booke option to support the BookE.
> With the patch, we get :
> ## On a 256M machine:
> # busybox cat /proc/cmdline
> init=/bin/init console=ttyS0,16550 crashkernel=128M at 100M
> # kexec -p root/vmlinux
> usable memory rgns size:1 base:6400000 size:8000000
> 0000000000000000-0000000006400000
> 000000000e400000-0000000010000000
> Command line after adding elfcorehdr:  elfcorehdr=112380K
> Command line after adding elfcorehdr:  elfcorehdr=112380K savemaxmem=256M

So there were two crash regions when we only needed the one specified
on the command line?


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