diff options
Diffstat (limited to 'etc/ulimit.hack')
| -rw-r--r-- | etc/ulimit.hack | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/etc/ulimit.hack b/etc/ulimit.hack new file mode 100644 index 00000000000..1baeecc40db --- /dev/null +++ b/etc/ulimit.hack @@ -0,0 +1,38 @@ +#!/bin/sh +# +# ulimit.hack: Create an intermediate program for use in +# between kernel initialization and init startup. +# This is needed on a 3b system if the standard CDLIMIT is +# so small that the dumped Emacs file cannot be written. +# This program causes everyone to get a bigger CDLIMIT value +# so that the dumped Emacs can be written out. +# +# Users of V.3.1 and later should not use this; see etc/MACHINES +# and reconfig your kernel's CDLIMIT parameter instead. +# +# Caveat: Heaven help you if you screw this up. This puts +# a new program in as /etc/init, which then execs the real init. +# +cat > ulimit.init.c << \EOF +main(argc, argv) +int argc; +char *argv[]; +{ + ulimit(2, 262144L); /* "2" is the "set" command. */ + /* 262,144 allows for 128Mb files to be written. */ + /* If that value isn't suitable, roll your own. */ + execv("/etc/real.init", argv); +} +EOF +# +# Compile it and put it in place of the usual init program. +# +cc ulimit.init.c -o ulimit.init +mv /etc/init /etc/real.init +mv ulimit.init /etc/ulimit.init +ln /etc/ulimit.init /etc/init +mv ulimit.init.c /etc/ulimit.init.c # to keep src for this hack nearby. +chmod 0754 /etc/init +exit 0 +# +# Upon system reboot, all processes will inherit the new large ulimit. |