Clarify stack limit.

diff --git a/doc/vm.texi b/doc/vm.texi
index 8ea6ee46b8c37b6897df3ddd365ed9428c731d1e..982cdcb4f3d06bdd619e22c196c9cc0e8ea713da 100644 (file)
--- a/doc/vm.texi
+++ b/doc/vm.texi
@@ -501,8 +501,9 @@ not be restartable in a straightforward fashion.)  Similarly, the
 bytes below the stack pointer.
 
 You may impose some absolute limit on stack size, as do most OSes.
 bytes below the stack pointer.
 
 You may impose some absolute limit on stack size, as do most OSes.

-(Some OSes make the limit user-adjustable, e.g.@: with the
-@command{ulimit} command on many Unix systems.)
+Some OSes make the limit user-adjustable, e.g.@: with the
+@command{ulimit} command on many Unix systems.  On many GNU/Linux systems,
+the default limit is 8 MB.

 
 The first stack page need not be allocated lazily.  You can initialize
 it with the command line arguments at load time, with no need to wait
 
 The first stack page need not be allocated lazily.  You can initialize
 it with the command line arguments at load time, with no need to wait