Re: [PATCH 0/3] Early use of boot service memory

[H. Peter Anvin]

On 11/13/2013 02:45 PM, jerry.hoemann@xxxxxx 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


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/