[Crash-utility] ARM support for CONFIG_SPARSEMEM: (was Re: DDimage)

[Mika Westerberg]

On Wed, May 25, 2011 at 8:07 AM,  <takuo.koguchi.sw at hitachi.com> wrote:
> Thanks Dave, MW, Jan,
>
> I tried the patch which set machdep->section_size_bits and machdep->max_physmem_bits.
>
> When _SECTION_SIZE_BITS is 28, I got the following error, and failed in sparse_mem_init()
> PAGESIZE=4096
> mem_section_size = 0
> NR_SECTION_ROOTS = 0
> NR_MEM_SECTIONS = 16
> SECTIONS_PER_ROOT = 512
> SECTION_ROOT_MASK = 0x1ff
> PAGES_PER_SECTION = 65536
> crash: invalid size request: 0  type: "memory section root table"
>
>
> And when _SECTION_SIZE_BITS is 22, I got the following and sparse_mem_init() returns with out error.
>
> PAGESIZE=4096
> mem_section_size = 8
> NR_SECTION_ROOTS = 2
> NR_MEM_SECTIONS = 1024
> SECTIONS_PER_ROOT = 512
> SECTION_ROOT_MASK = 0x1ff
> PAGES_PER_SECTION = 1024
>
> ... But I got another error later, which I will report later.
>

Is it possible to provide me a sample vmlinux/vmcore pair which I
could use for testing?