[Crash-utility] [PATCH] Crash-Utility: s390x: Auto-detect the correct MAX_PHYSMEM_BITS used in vmcore being analyzed.

[Michael Holzheu]

Hello Mahesh, Dave,

I am no expert on memory management, but...

Mahesh Jagannath Salgaonkar <mahesh at linux.vnet.ibm.com> wrote on 12/22/2011
10:06:43:
> > And complicating matters even further, your patch presumes that the
> > kernel has configured CONFIG_SPARSEMEM_EXTREME in conjunction with
> > CONFIG_SPARSEMEM.  Would it be possible for an s390x to be configured
> > with just CONFIG_SPARSEMEM alone?
>
> Not sure. I have never tried building s390x kernel configured with just
> CONFIG_SPARSEMEM alone.

On s390x CONFIG_SPARSEMEM, CONFIG_SPARSEMEM_EXTREME, and SPARSEMEM_VMEMMAP
is always enabled.

Michael