On 11/13/2012 11:36 AM, Baoquan wrote:
Hi,
I have tested ppc64 part of this patchset, and it works.
Do you plan to merge this patchset?
Sorry, above question should go to Simon.
On 10/24/2012 11:18 AM, Mahesh Jagannath Salgaonkar wrote:
On 08/29/2012 01:54 PM, Mahesh J Salgaonkar wrote:
So far powerpc kernel never exported memory limit information which is
reflected by mem= kernel cmdline option. Hence, kexec-tools always use
to build ELF header for entire system RAM generating a dump bigger than
the actual memory used by the first kernel.
The proposed upstream kernel patch at
https://lists.ozlabs.org/pipermail/linuxppc-dev/2012-August/100500.html
now exports memory limit information through /proc/device-tree file.
The above patch is still in discussion.
The above mentioned kernel patches are now upstream. Below are commit
ids:
4bc77a5e - powerpc: Export memory limit via device tree
a84fcd468 - powerpc: Change memory_limit from phys_addr_t to unsigned
long long
This patch series now reads the memory limit information from
device-tree file if present and limits the crash memory ranges
accordingly.
Tested these patches on ppc32(ppc440) and ppc64 with a kernel patch
by Suzuki.
Signed-off-by: Mahesh Salgaonkar<mah...@linux.vnet.ibm.com>
Tested-by: Suzuki K. Poulose<suz...@in.ibm.com>
---
Mahesh Salgaonkar (2):
kexec: Respect memory limit while building crash memory
ranges on ppc32.
kexec: Respect memory limit while building crash memory
ranges on ppc64
kexec/arch/ppc/crashdump-powerpc.c | 14 ++++++++---
kexec/arch/ppc/crashdump-powerpc.h | 1 +
kexec/arch/ppc/kexec-ppc.c | 48
++++++++++++++++++++++++++++++++++++
kexec/arch/ppc64/crashdump-ppc64.c | 11 ++++++++
kexec/arch/ppc64/crashdump-ppc64.h | 1 +
kexec/arch/ppc64/kexec-ppc64.c | 28 +++++++++++++++++++++
6 files changed, 99 insertions(+), 4 deletions(-)
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