This is v2 post. Because of Thomas's kernel patchset, direct mapping, vmalloc and vmemmap could have random starting address. They need be exported to VMCOREINFO and let makedumpfile know this so that makedumpfile can identify these memory areas correctly. Below is the kernel patchset from Thomas: x86/mm: memory area address KASLR https://lwn.net/Articles/692289/ I have posted a new kernel patchset to export the base of direct mapping, vmalloc and vmemmap. The subject is: kexec: Export memory sections virtual addresses to vmcoreinfo v1->v2: According to Atsushi's comment, mainly change patch 3/3. - Remove VMALLOC_END_ORIG, VMEMMAP_END_ORIG , VMALLOC_END_2_6_31 and VMEMMAP_END_2_6_31 since they are not needed anymore. - Put those number table member value assignment into get_versiondep_info_x86_64. Baoquan He (3): makedumpfile: Get info->kernel_version from SYMBOL(init_uts_ns) earlier makedumpfile: Move get_versiondep_info calling earlier makedumpfile: Add support for MM randomization arch/x86_64.c | 51 ++++++++++++++++++++++++++++++++++----------------- makedumpfile.c | 33 ++++++++++++++++----------------- makedumpfile.h | 7 +++---- 3 files changed, 53 insertions(+), 38 deletions(-) -- 2.5.5
