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| author | Wen Congyang <wency@cn.fujitsu.com> | 2012-12-17 15:59:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-17 17:15:12 -0800 |
| commit | fbb97d87802247a7bb32a207a8275372e79e6b88 (patch) | |
| tree | 17d48c19edc1e8d703b13a64c2abcded3ab07b75 /Documentation/kernel-parameters.txt | |
| parent | 3515b737d3c1377874c5cba8b7db3d2477da3af3 (diff) | |
| download | lwn-fbb97d87802247a7bb32a207a8275372e79e6b88.tar.gz lwn-fbb97d87802247a7bb32a207a8275372e79e6b88.zip | |
Documentation/kernel-parameters.txt: update mem= option's spec according to its implementation
Current mem= implementation seems buggy because the specification and
implementation don't match. The current mem= has been working for many
years and it's not buggy - it works as expected. So we should update the
specification.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Cc: Rob Landley <rob@landley.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index ea8e5b485576..ddd84d627185 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1503,9 +1503,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. mem=nn[KMG] [KNL,BOOT] Force usage of a specific amount of memory Amount of memory to be used when the kernel is not able to see the whole system memory or for test. - [X86-32] Use together with memmap= to avoid physical - address space collisions. Without memmap= PCI devices - could be placed at addresses belonging to unused RAM. + [X86] Work as limiting max address. Use together + with memmap= to avoid physical address space collisions. + Without memmap= PCI devices could be placed at addresses + belonging to unused RAM. mem=nopentium [BUGS=X86-32] Disable usage of 4MB pages for kernel memory. |