Messages in this thread | | | Date | Wed, 20 Mar 2013 08:53:29 -0700 | Subject | Re: [PATCH v5] x86, kdump: Set crashkernel_low automatically | From | Yinghai Lu <> |
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On Wed, Mar 20, 2013 at 6:08 AM, Vivek Goyal <vgoyal@redhat.com> wrote:
> Have a general question about crashkernel_low. Why does it need to > show up as "Crash kernel low" in /proc/iomem. Will it not be better > that all memory reserved for crashkernel (whether high or low), shows > as "Crash Kernel" and let kexec-tools decide whether to load kernel > high or low etc. > > IOW, there should not be any need to differentiate between "Crash kernel" > and "Crash kernel low". There are address ranges associated and looking > at addresses it is obivious that certain memory is below 4G.
yes. it is doable. but 1. will need to add more code to expand parse_iomem_single to handle multiple "Crash kernel" in kexec-tools. 2. also we already have "crashkernel_low=" in command line, so it is good to keep them consistent in /proc/iomem.
Thanks
Yinghai
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