From: Wen Congyang Date: Thu, 29 Nov 2012 03:18:15 +0000 (+1100) Subject: Documentation/kernel-parameters.txt: update mem= option's spec according to its imple... X-Git-Tag: next-20121205~1^2~213 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2416d29f45fcff6af1190095a0a58ba8d413b535;p=karo-tx-linux.git 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 Cc: Rob Landley Signed-off-by: Andrew Morton --- diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 607b2364dd24..d1d690cf841e 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.