cp /proc/vmcore fails on core generated using latest kexec tools.

* On ppc64 memory ranges in device-tree is denoted as start and size.
* While in case of other architectures like i386 it is represented as start and
* end. Because of this when loading the memory ranges in crashdump-elf.c the
* filesz calculation using start and end values of memory range goes for a toss.
*
* phdr->p_filesz  = phdr->p_memsz = mend - mstart + 1;
*
* Because of the +1 in above statement the generated vmcore is not a valid
* dump file.
*
* There are different ways in which this problem can be fixed.
* A. Add a ifdef in crashdump-elf.c for elf machine type.
*    if EM_PPC64 then
*       filesz = end - start;
*    else
*       filesz = end - start + 1;
*    fi
* B. Change the ppc64 specific code so as to follow the i386 convention when
*    it comes to representing memory ranges.
* C. Create a PPC64 specific function to populate crash ranges and not use
*    the generic function from crashdump-elf.c
*
* Of all these solutions B is the smallest and works well. Here is a patch
* to implement the same.
*

Signed-off-by : Sachin Sant <sachinp@in.ibm.com>

Removed trailing whitespace

Signed-off-by : Simon Horman <horms@verge.net.au>

0 files changed, 0 insertions, 0 deletions