Messages in this thread |  | | Date | Wed, 13 Nov 2013 14:49:42 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 0/3] Early use of boot service memory |
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On 11/13/2013 02:45 PM, jerry.hoemann@hp.com wrote: > > The changes in 3.9 to allow crash kernel to be allocated high helps. > But as you say, the default is still to allocate crash kernel low and > still susceptible to this problem. So, a kdump expert can work around it. > But, not everyone is a kdump expert. > > So, we can work to change the default, or encourage the distros > to always allocate high. Or, we change the call to efi_reserve_boot_services > not apply to all platforms. > > The problems for pre 3.9 based distros is worse as they don't have > ability to allocate crash kernel high. >
But they won't have your new option, either, and that is still horribly manual and system-dependent.
In other words, allocating the crashkernel high has ALL the advantages, plus a few more, and NONE of the disadvantages.
-hpa
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