[Crash-utility] [PATCH 0/3] Fix KASLR problem on virsh dump and sadump

Hi Dave, Hatayama-san, These patch series fix a problem that crash cannot open a dumpfile which is captured by "virsh dump --memory-only" or sadump on KASLR enabled kernel. When KASLR feature is enabled, a kernel is placed on the memory randomly and therefore crash cannot open a dumpfile because addresses of kernel symbols in vmlinux are different from actual addresses. In the case of kdump, information to get actual address is included in the vmcoreinfo, but dumpfile of virsh dump or sadump does not have such a information. These patches calculate kaslr offset and phys_base to solve this problem. The basic idea is getting register (IDTR and CR3) from dump header, and calculate kaslr_offset/phys_base using them. Takao Indoh (3): Introduce x86_64_kvtop_pagetable Fix a KASLR problem of virsh dump Fix a KASLR problem of sadump defs.h | 11 ++ netdump.c | 505 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ netdump.h | 1 + sadump.c | 60 +++++++- sadump.h | 4 + symbols.c | 38 +++++ x86_64.c | 35 ++++- 7 files changed, 652 insertions(+), 2 deletions(-) -- 2.9.5