On Fri, 25 Jul 2014 17:07:49 +0200
Laurent Dufour <ldufour at linux.vnet.ibm.com> wrote:
> The ELF header created among the loading of the kdump kernel should be
> flagged using the current endianess and not always as big endian.
>
> Without this patch the data exposed in /proc/vmcore are not readable when
> running in LE mode.
FWIW I can confirm that this patch has fixed kdump on my ppc64le system.
Thank you, Laurent!
Petr Tesarik
> Signed-off-by: Laurent Dufour <ldufour at linux.vnet.ibm.com>
> ---
> kexec/arch/ppc64/crashdump-ppc64.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/kexec/arch/ppc64/crashdump-ppc64.c b/kexec/arch/ppc64/crashdump-ppc64.c
> index 00a0e632f48e..6214b831fdf2 100644
> --- a/kexec/arch/ppc64/crashdump-ppc64.c
> +++ b/kexec/arch/ppc64/crashdump-ppc64.c
> @@ -38,7 +38,11 @@
> static struct crash_elf_info elf_info64 =
> {
> class: ELFCLASS64,
> +#if BYTE_ORDER == LITTLE_ENDIAN
> + data: ELFDATA2LSB,
> +#else
> data: ELFDATA2MSB,
> +#endif
> machine: EM_PPC64,
> page_offset: PAGE_OFFSET,
> lowmem_limit: MAXMEM,
>
>
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