Messages in this thread | | | Date | Fri, 25 Jan 2019 15:08:23 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCHv7] x86/kdump: bugfix, make the behavior of crashkernel=X consistent with kaslr |
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On Fri, Jan 25, 2019 at 09:45:18PM +0800, Dave Young wrote: > AFAIK, some people prefer to explictly reserve crash memory at high > region even if it is possible to reserve at low area. May because > <4G memory is limited on large server, they want to leave this for other > use. > > Yinghai or Vivek should know more about the history, probably they can > recall some initial reason.
Yes, just "prefer" is not good enough. There should be a technical reason why that's there.
Also, if the user doesn't care, then the code should be free to force "high" and thus probe a different range for allocation.
> Good question, still it may be some historical reason, but it is good to > make them clear and rethink about it after long time. > > I also want to understand, need dig the log more.
Good idea. That would be a very nice cleanup. :-)
Thx.
-- Regards/Gruss, Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
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