kdump, ia64: always reserve elfcore header memory in crash kernel

[Andrew Morton]

On Tue, 5 Aug 2008 19:48:27 +1000 Simon Horman <horms at verge.net.au> wrote:

> elfcore header memory needs to be reserved in a crash kernel.
> This means that the relevant code should be protected
> by CONFIG_CRASH_DUMP rather than CONFIG_PROC_VMCORE.
> 
> Signed-off-by: Simon Horman <horms at verge.net.au>
> 
> --- 
> Andrew, this patch fixes bug in the (unlikely) case where
> an ia64 crashdump kernel does not have CONFIG_PROC_FS set.
> I think it is worth including in 2.6.27. But breakage cases are
> likely to be minimal to non-existent, so I am comfortable
> with post 2.6.27 too.
> 
> This patch should be appended to the series,
> "is_kdump_kernel() cleanup and related patches".

hm, that means that we would need to apply a moderate-size seven patch
series to fix one little bug.

I think that if we want to fix this in 2.6.27 then the basic single
patch would be preferable.  Or we leave it until 2.6.28/