V2 Implement crashkernel=auto
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b4 am [email protected]Versions newest first
- v1 Latest7 patches 4 repliesIn review
V1 -> V2 from the cover letter
- Use include/asm-generic/kexec.h, suggested by Neil.
- Rename a local variable, suggested by Fenghua.
- Fix some style problems found by checkpatch.pl.
- Unify the Kconfig docs.
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/7 | x86: add CONFIG_KEXEC_AUTO_RESERVEarch/ | +10 | 0 replies | |
| 2/7 | x86: implement crashkernel=autoarch/ include/ kernel/ | +62 | 0 replies | |
| 3/7 | ia64: add CONFIG_KEXEC_AUTO_RESERVEarch/ | +10 | 0 replies | |
| 4/7 | ia64: implement crashkernel=autoarch/ | +8 | 4 replies | |
| 5/7 | powerpc: add CONFIG_KEXEC_AUTO_RESERVEarch/ | +10 | 0 replies | |
| 6/7 | powerpc: implement crashkernel=autoarch/ | +8 | 0 replies | |
| 7/7 | doc: update the kdump documentDocumentation/ | +16 | 0 replies |
Reviews trailers per patch
3 of 7 patches have a Reviewed-by or Acked-by.
| Patch | Neil Horman |
|---|---|
| 1/7 | A-b |
| 2/7 | |
| 3/7 | A-b |
| 4/7 | |
| 5/7 | A-b |
| 6/7 | |
| 7/7 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [Patch 0/7] V2 Implement crashkernel=auto
V1 -> V2:
- Use include/asm-generic/kexec.h, suggested by Neil.
- Rename a local variable, suggested by Fenghua.
- Fix some style problems found by checkpatch.pl.
- Unify the Kconfig docs.
This series of patch implements automatically reserved memory for crashkernel, by introducing a new boot option "crashkernel=auto". This idea is from Neil.
In case of breaking user-space applications, it modifies this boot option after it decides how much memory should be reserved.
On different arch, the threshold and reserved memory size is different. Please refer patch 7/7 which contains an update for the documentation.
Note: This patchset was only tested on x86_64 with differernt memory sizes.
--- Documentation/kdump/kdump.txt | 16 ++++++++++++++++ arch/ia64/Kconfig | 10 ++++++++++ arch/ia64/include/asm/kexec.h | 8 ++++++++ arch/powerpc/Kconfig | 10 ++++++++++ arch/powerpc/include/asm/kexec.h | 8 ++++++++ arch/x86/Kconfig | 10 ++++++++++ arch/x86/include/asm/kexec.h | 1 + kernel/kexec.c | 34 ++++++++++++++++++++++++++++++++++ 8 files changed, 97 insertions(+)