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author | Thomas Schwinge <thomas@codesourcery.com> | 2013-03-19 18:47:23 +0100 |
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committer | Thomas Schwinge <thomas@codesourcery.com> | 2013-03-19 18:47:23 +0100 |
commit | d166bfaaa3ddf8b83b5cc6bde62f8872e6a80c82 (patch) | |
tree | 4d8a8904c2c49122c37895ed4573a5fcbd19ed4f /faq/support/ram_limit.mdwn | |
parent | 64f867bbc45d265009a1bad590bc1d4d9ea91d6e (diff) | |
parent | ce8c2531cdb7ee05784437da4c38459e5d3897d6 (diff) | |
download | web-d166bfaaa3ddf8b83b5cc6bde62f8872e6a80c82.tar.gz web-d166bfaaa3ddf8b83b5cc6bde62f8872e6a80c82.tar.bz2 web-d166bfaaa3ddf8b83b5cc6bde62f8872e6a80c82.zip |
Merge remote-tracking branch 'savannah/master'
As part of the merge, fix some typos, add copyright and licensing headers, and
a few more minor changes.
Diffstat (limited to 'faq/support/ram_limit.mdwn')
-rw-r--r-- | faq/support/ram_limit.mdwn | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/faq/support/ram_limit.mdwn b/faq/support/ram_limit.mdwn new file mode 100644 index 00000000..0fa27c2e --- /dev/null +++ b/faq/support/ram_limit.mdwn @@ -0,0 +1,22 @@ +[[!meta copyright="Copyright © 2007, 2008, 2013 Free Software Foundation, +Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!meta title="830 MiB RAM Limit"]] + +Just like any 32-bit OS without bad tricks, GNU Mach can not cope well with lots +of memory. Latest versions of the Debian `gnumach` package will limit themselves +to around 1.7 GiB of memory. If you want more, you can twiddle the `VM_MAX_ADDRESS` +limit between kernelland and userland in `i386/include/mach/i386/vm_param.h`. + +If you have an older version, or still experience problems with `vmstat` (see +above) reported much less memory than you have, the best is to limit the memory +it can see via GRUB's `upppermem` feature. Add `uppermem 786432` to GRUB's Hurd +entry in `menu.lst`. |