mm/kdump: exclude reserved pages in dumps
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- v1 Latest2 patches 30 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | mm: clarify semantics of reserved pagesinclude/ | +2 | 1 reply | |
| 2/2 | kdump: include PG_reserved value in VMCOREINFOkernel/ | +1 | 0 replies |
Reviews trailers per patch
1 of 2 patches has a Reviewed-by or Acked-by.
| Patch | Michal Hocko |
|---|---|
| 1/2 | A-b |
| 2/2 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH v1 0/2] mm/kdump: exclude reserved pages in dumps
Dumping tools (like makedumpfile) right now don't exclude reserved pages. So reserved pages might be access by dump tools although nobody except the owner should touch them.
This is relevant in virtual environments where we soon might want to report certain reserved pages to the hypervisor and they might no longer be accessible - what already was documented for reserved pages a long time ago ("might not even exist").
David Hildenbrand (2):
mm: clarify semantics of reserved pages
kdump: include PG_reserved value in VMCOREINFO
include/linux/page-flags.h | 4 ++-- kernel/crash_core.c | 1 + 2 files changed, 3 insertions(+), 2 deletions(-)
Signature · 1 line
2.17.1