Bug 57931

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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.4)
Gecko/20011019 Netscape6/6.2

Description of problem:
tcsh lacks the "vmemoryuse" limit to limit virtual memory use. The desired
result can be obtained by setting "as" limit in /etc/security/limits.conf;
however, this is not possible f.e. for batch systems where the virtual
memory limit has to be set at run-time for each process by the parent tcsh.
Possible cause: RLIMIT_VMEM is not defined in /usr/include/bits/resource.h.

Possible fix: in tcsh-6.10.00/sh.func.c, RLIMIT_VMEM can be #define-d as
RLIMIT_AS (which is defined in /usr/include/bits/resource.h). It seems like
on some systems RLIMIT_AS is #define-d as RLIMIT_VMEM...


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. limit



Actual Results:  cputime         unlimited
filesize        unlimited
datasize        unlimited
stacksize       8192 kbytes
coredumpsize    unlimited
memoryuse       unlimited
descriptors     1024 
memorylocked    unlimited
maxproc         511 
openfiles       1024

Expected Results:  cputime         unlimited
filesize        unlimited
datasize        unlimited
stacksize       8192 kbytes
coredumpsize    unlimited
memoryuse       unlimited
vmemoryuse      unlimited    <<<<<
descriptors     1024 
memorylocked    unlimited
maxproc         511 
openfiles       1024 


Additional info:

tcsh-6.10-6

This is not only a problem of printing the limits with tcsh. The limit
cannot be enforced, so that processes can allocate any amount of memory
they ask for (unless limited in /etc/security/limits.conf). For comparison,
using bash-2.05-8, ulimit -v does have the desired effect.