Add extended crashkernel command line syntax
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- v1 Latest7 patches 7 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/7 | Extended crashkernel command lineinclude/ kernel/ | +141 | 1 reply | |
| 2/7 | Use extended crashkernel command line on i386arch/ arch/ arch/ | +30 | 1 reply | |
| 3/7 | Use extended crashkernel command line on x86_64arch/ arch/ arch/ | +30 | 2 replies | |
| 4/7 | Use extended crashkernel command line on ia64arch/ arch/ include/ | +50 | 0 replies | |
| 5/7 | Use extended crashkernel command line on ppc64arch/ | +26 | 0 replies | |
| 6/7 | Use extended crashkernel command line on sharch/ arch/ | +29 | 1 reply | |
| 7/7 | Add documentation for extended crashkernel syntaxDocumentation/ | +26 | 2 replies |
Reviews trailers per patch
1 of 7 patches has a Reviewed-by or Acked-by.
| Patch | Paul Mundt |
|---|---|
| 1/7 | |
| 2/7 | |
| 3/7 | |
| 4/7 | |
| 5/7 | |
| 6/7 | A-b |
| 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] Add extended crashkernel command line syntax
This patch adds a extended crashkernel syntax that makes the value of reserved system RAM dependent on the system RAM itself:
crashkernel=<range1>:<size1>[,<range2>:<size2>,...][@offset]
range=start-[end]For example:
crashkernel=512M-2G:64M,2G-:128M
The motivation comes from distributors that configure their crashkernel command line automatically with some configuration tool (YaST, you know ;)). Of course that tool knows the value of System RAM, but if the user removes RAM, then the system becomes unbootable or at least unusable and error handling is very difficult.
This series implements this change for i386, x86_64, ia64, ppc64 and sh. That should be all platforms that support kdump in current mainline. I tested all platforms except sh due to the lack of a sh processor.
The patch series is against 2.6.23-rc4-mm1.