|
0
|
1 #!/bin/sh
|
|
|
2 #
|
|
|
3 # ulimit.hack: Create an intermediate program for use in
|
|
|
4 # between kernel initialization and init startup.
|
|
|
5 # This is needed on a 3b system if the standard CDLIMIT is
|
|
|
6 # so small that the dumped Emacs file cannot be written.
|
|
|
7 # This program causes everyone to get a bigger CDLIMIT value
|
|
|
8 # so that the dumped Emacs can be written out.
|
|
|
9 #
|
|
|
10 # Users of V.3.1 and later should not use this; see etc/MACHINES
|
|
|
11 # and reconfig your kernel's CDLIMIT parameter instead.
|
|
|
12 #
|
|
|
13 # Caveat: Heaven help you if you screw this up. This puts
|
|
|
14 # a new program in as /etc/init, which then execs the real init.
|
|
|
15 #
|
|
|
16 cat > ulimit.init.c << \EOF
|
|
|
17 main(argc, argv)
|
|
|
18 int argc;
|
|
|
19 char *argv[];
|
|
|
20 {
|
|
|
21 ulimit(2, 262144L); /* "2" is the "set" command. */
|
|
|
22 /* 262,144 allows for 128Mb files to be written. */
|
|
|
23 /* If that value isn't suitable, roll your own. */
|
|
|
24 execv("/etc/real.init", argv);
|
|
|
25 }
|
|
|
26 EOF
|
|
|
27 #
|
|
|
28 # Compile it and put it in place of the usual init program.
|
|
|
29 #
|
|
|
30 cc ulimit.init.c -o ulimit.init
|
|
|
31 mv /etc/init /etc/real.init
|
|
|
32 mv ulimit.init /etc/ulimit.init
|
|
|
33 ln /etc/ulimit.init /etc/init
|
|
|
34 mv ulimit.init.c /etc/ulimit.init.c # to keep src for this hack nearby.
|
|
|
35 chmod 0754 /etc/init
|
|
|
36 exit 0
|
|
|
37 #
|
|
|
38 # Upon system reboot, all processes will inherit the new large ulimit.
|
