Hello, Le 24/10/2016 ? 18:48, Pratyush Anand a ?crit : > Patch 1/4 fixes page_offset calculation, so that it is correctly calculated > on KASLR enabled kernel as well. > Patch 2/4 simplifies VA to PA translation. New code has been benchmarked > against old code on a 4T system. > Patch 3/4 and 4/4 is removal of (now) unnecessary code. > > I think, we should find a way to kill find_vememmap() as well, so that > VMEMMAP_START can be removed. I have very limited idea about x86, so unable > to do that as of now. > > Pratyush Anand (4): > x86_64: Calculate page_offset from pt_load > x86_64: translate all VA to PA using page table values > x86_64: kill is_vmalloc_addr_x86_64() > x86_64: kill some unused initialization > > arch/x86_64.c | 84 ++++++++++++++++++++-------------------------------------- > makedumpfile.h | 9 +++---- > 2 files changed, 32 insertions(+), 61 deletions(-) > Cross-posting but FYI, this patch fixes the issue reported in the following thread : makedumpfile issues many readpage_elf: Attempt to read non-existent page[1] It corresponds to the commit identified by my kernel bisection. I will wait until it is accepted in Kumagai-san's tree to include it in Debian/Ubuntu. Kind regards, ...Louis [1] https://www.mail-archive.com/kexec at lists.infradead.org/msg16434.html -- Louis Bouchard Software engineer, Cloud & Sustaining eng. Canonical Ltd Ubuntu developer Debian Maintainer GPG : 429D 7A3B DD05 B6F8 AF63 B9C4 8B3D 867C 823E 7A61
