Hi all,
while wondering about missing ulimits for an interactive session
scheduled by SGE (SUN GridEngine) to a node in a cluster running on
Debian (which is working fine with other Linux distributions), I also
found, that each user can increase his limits again by a simple su to
his own account:
$ ulimit -t 55
$ ulimit -aH
...
cpu time (seconds, -t) 55
...
$ su - reuti
Password:
$ ulimit -aH
...
cpu time (seconds, -t) unlimited
...
Digging around I finally found this:
--- pam-0.76.orig/debian/patches-applied/
027_pam_limits_better_init_allow_explicit_root
+++ pam-0.76/debian/patches-applied/
027_pam_limits_better_init_allow_explicit_root
@@ -0,0 +1,100 @@
+Allow explicit limits for root.
+Also, remove limits on su.
+Index: Linux-PAM/modules/pam_limits/pam_limits.c
Seems, that I can get the desired behavior by changing this back. But
more interesting is the question: why was this patch applied to
pam_ulimits.c in Debian? What is the advantage of allowing a user to
circumvent any imposed limits?
Cheers - Reuti
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