On 10/04/11 08:51, Suzuki Poulose wrote:
On 10/03/11 23:53, McClintock Matthew-B29882 wrote:
On Mon, Oct 3, 2011 at 5:18 AM, Suzuki K. Poulose<[email protected]> 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@100M
# kexec -p root/vmlinux
usable memory rgns size:1 base:6400000 size:8000000
CRASH MEMORY RANGES
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?
Yes, and isn't that is expected ? The first kernel uses the memory region
(0-100M), (228M,256M). Where the 100-228M is reserved for crash kernel.
The CRASH MEMORY RANGES denotes the memory ranges of the crashed kernel and
usable memory regions denote the memory usable by the second kernel.
Thanks
Suzuki
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