Hi Kumagai-san, Hatayama-san, These patch series fix a problem that makedumpfile cannot handle a dumpfile which is captured by sadump on KASLR enabled kernel. When KASLR feature is enabled, a kernel is placed on the memory randomly and therefore makedumpfile cannot handle 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 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. changelog: v3: - Split patch 3/3 into two parts - core part to calculate kaslr_offset and phys_base - Additional part to fix this problem during kdump v2: http://lists.infradead.org/pipermail/kexec/2017-October/019554.html - Change get_vec0_addr style - Some tiny fixes v1: http://lists.infradead.org/pipermail/kexec/2017-October/019530.html Takao Indoh (4): Support symbol __cpu_online_mask Introduce vtop4_x86_64_pagetable sadump: Fix a KASLR problem of sadump sadump: Fix a KASLR problem of sadump while kdump is working arch/x86_64.c | 30 ++++- makedumpfile.c | 20 ++- makedumpfile.h | 8 +- sadump_info.c | 417 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 4 files changed, 462 insertions(+), 13 deletions(-) -- 2.9.5
