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Diffstat (limited to 'doc/emacs/trouble.texi')
| -rw-r--r-- | doc/emacs/trouble.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/emacs/trouble.texi b/doc/emacs/trouble.texi index 93f9c779dbf..f524a820220 100644 --- a/doc/emacs/trouble.texi +++ b/doc/emacs/trouble.texi @@ -296,6 +296,20 @@ editing in the same Emacs session. out of memory, because the Buffer Menu needs a fair amount of memory itself, and the reserve supply may not be enough. +@cindex memory trouble, GNU/Linux + On GNU/Linux systems, the system does not normally report running +out of memory to Emacs, and can instead randomly kill processes when +they run out of memory. We recommend that you turn this behavior off, +so that Emacs can respond correctly when it runs out of memory, by +becoming the super user, editing the file @code{/etc/sysctl.conf} to +contain the following lines, and then running the command @code{sysctl +-p}: + +@example +vm.overcommit_memory=2 +vm.overcommit_ratio=0 +@end example + @node Crashing @subsection When Emacs Crashes |