Messages in this thread | | | From | Yinghai Lu <> | Date | Sat, 21 Oct 2017 00:20:33 -0700 | Subject | Re: x86/kdump: crashkernel=X try to reserve below 896M first then below 4G and MAXMEM |
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On Thu, Oct 19, 2017 at 10:52 PM, Dave Young <dyoung@redhat.com> wrote: > Now crashkernel=X will fail if there's not enough memory at low region > (below 896M) when trying to reserve large memory size. One can use > crashkernel=xM,high to reserve it at high region (>4G) but it is more > convinient to improve crashkernel=X to: > > - First try to reserve X below 896M (for being compatible with old > kexec-tools). > - If fails, try to reserve X below 4G (swiotlb need to stay below 4G). > - If fails, try to reserve X from MAXMEM top down. > > It's more transparent and user-friendly.
ok with me.
But looks like last time Vivek did not like this idea.
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