On Thu, Mar 09, 2017 at 08:11:03PM +0100, Thomas Gleixner wrote: > On Thu, 9 Mar 2017, Mike Galbraith wrote: > > On Thu, 2017-03-09 at 18:50 +0100, Thomas Gleixner wrote: > > > On Thu, 9 Mar 2017, Mike Galbraith wrote: > > > > > > > Greetings, > > > > > > > > I bisected kdump breakage to $subject, and verified the identified > > > > culprit via revert. Seems kexec needs those variables as they were. > > > > > > Yuck. That does not make any sense at all. I'll try to figure out why. > > > > Dunno, but I did find this. > > > > git@homer:..kexec-tools/kexec-tools-2.0.5> grep -IR 'elf_rel_.*symbol' . | > > egrep 'backup_|digest'|grep x86_64 > > ./kexec/arch/x86_64/kexec-x86_64.c: elf_rel_set_symbol(&info->rhdr, > > "backup_src_start", > > ./kexec/arch/x86_64/kexec-x86_64.c: elf_rel_set_symbol(&info->rhdr, > > "backup_src_size", > > ./kexec/arch/x86_64/kexec-x86_64.c: > > elf_rel_set_symbol(&info->rhdr, "backup_start", > > Came so far as well. Lovely undocumented dependencies.....
I'm out of my depth on this one. If there is some task I can do to save you time or effort, point me at it. thanks, Tobin.

