Messages in this thread | | | Date | Mon, 27 Jul 2015 16:45:57 +0200 | From | Joerg Roedel <> | Subject | Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel low memory reserving failed |
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On Tue, Jul 21, 2015 at 09:38:14AM +0200, Ingo Molnar wrote: > Also, why was this syntax introduced in the first place? Why should the user > care?? > > We should only have a single crashkernel option, to enable it - and everything > else should be figured out by the kernel, automatically. > > Any other sub-options just paper over some fragility elsewhere and make the > feature harder to use, hence more fragile.
Hmm, maybe the reason is that old userspace (kdump/kexec tools) can't deal with crashkernel loaded high, so that the default for crashkernel=size allocations was kept to be under 896MB.
If that's not an issue we can change the default and get rid of the ,high and ,low syntax.
Joerg
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