[Xen-devel] incorrect layout of globals from head_64.S during kexec boot
JBeulich at suse.com
Fri Jul 6 08:56:41 EDT 2012
>>> On 06.07.12 at 14:07, Olaf Hering <olaf at aepfle.de> wrote:
> But adding some debug to inspect
> *output in parse_elf() shows that the second entry in program headers is
> already shifted by 44 bytes in my testing, the others are shifted by the
> same amount.
Unfortunately it's not clear what is shifted - the printout below
looks just fine. Also, from your first mail I understood that the shift
there was by an amount not divisible by 4 - does that amount vary?
> Program Headers:
> Type Offset VirtAddr PhysAddr FileSiz
> MemSiz Flg Align
> LOAD 0x200000 0xffffffff81000000 0x0000000001000000 0xa3b000
> 0xa3b000 R E 0x200000
> LOAD 0xe00000 0xffffffff81c00000 0x0000000001c00000 0x05b0e8
> 0x05b0e8 RW 0x200000
> LOAD 0x1000000 0x0000000000000000 0x0000000001c5c000 0x012c40
> 0x012c40 RW 0x200000
> LOAD 0x106f000 0xffffffff81c6f000 0x0000000001c6f000 0x087000
> 0x702000 RWE 0x200000
> NOTE 0x82d5bc 0xffffffff8162d5bc 0x000000000162d5bc 0x00017c
> 0x00017c 0x4
> That makes me wonder wether kexec-tools is the culprit.
Possibly, though generally any corruption to the compressed image
should make decompression fail I would think.
More information about the kexec