On Friday 05 May 2017 05:13 PM, Pingfan Liu wrote:



----- Original Message -----
From: "Hari Bathini" <hbath...@linux.vnet.ibm.com>
To: "Michael Ellerman" <m...@ellerman.id.au>
Cc: "linuxppc-dev" <linuxppc-...@ozlabs.org>, "Pingfan Liu" <pi...@redhat.com>, 
"Mahesh J Salgaonkar"
<mah...@linux.vnet.ibm.com>
Sent: Friday, May 5, 2017 1:54:05 AM
Subject: [PATCH 2/2] powerpc/fadump: avoid holes in boot memory area when 
fadump is registered

To register fadump, boot memory area - the size of low memory chunk that
is required for a kernel to boot successfully when booted with restricted
memory, is assumed to have no holes. But this memory area is currently
The continuous is required by fadump code, not by the firmware itself, right?


Hmmm... Firmware takes a memory region,what we are calling boot memory
area, as input to be backed up at the time of crash. The same memory
region is used by kernel to boot after the crash. Firmware doesn't allow
holes in this memory region at the time of registering...

Thanks
Hari

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