Hi All!!
This is my first query here, I will be able to solve my problem here hopefully... I have AIX 5.3 and perl 5.8.2.60 installed on it. I am not able to set the data segment to unlimited using perl. I have a perl script that starts a Java process, for that process, I need unlimited data segment. I tried : 
[root@laka09]/
# ulimit -a
time(seconds)        unlimited
file(blocks)         unlimited
data(kbytes)         unlimited
stack(kbytes)        4194304
memory(kbytes)       unlimited
coredump(blocks)     unlimited
nofiles(descriptors) unlimited

[download]
This is by default.

Now i try to run the following 
# ! /usr/bin/perl
 system("ulimit -a");

The result is :

time(seconds)        unlimited
file(blocks)         unlimited
data(kbytes)         2097152
stack(kbytes)        4194304
memory(kbytes)       unlimited
coredump(blocks)     unlimited
nofiles(descriptors) unlimited

[download]
I saw somewhere BSD-Resource-1.28 could help me out, but i wasnot able to get it running.
[root@laka09]/results/sumit/127711/jdk142/lib/perl/BSD-Resource-1.28
# perl Makefile.PL

Configuring BSD::Resource...

Checking whether you have certain header files...
[cccmd = cc_r -c -o tmp245954.o -I/usr/opt/perl5/lib/5.8.2/aix-thread-
+multi/CORE -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE -qmaxmem=16
+384 -qnoansialias -DUSE_NATIVE_DLOPEN -DNEED_PTHREAD_INIT -q32 -D_LAR
+GE_FILES -qlonglong]
[cccmd = cc_r -c -o tmp245954.o -I/usr/opt/perl5/lib/5.8.2/aix-thread-
+multi/CORE -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE -qmaxmem=16
+384 -qnoansialias -DUSE_NATIVE_DLOPEN -DNEED_PTHREAD_INIT -q32 -D_LAR
+GE_FILES -qlonglong]
Your operating system does not seem to have <sys/resource.h> or <sys/r
+usage.h>.

(Run "perl Makefile.PL" with the environment variable VERBOSE set to 1
+ (one)
 too see in more detail what went wrong.)

There is no way BSD::Resource is going to work.

I am awfully sorry but I cannot go further.

Aborting configuration of BSD::Resource.

[download]

Please help!
Cheekoo

I tried this, see: 
[root@laka09]/results/sumit/127711/jdk142/lib/perl
# ! /usr/bin/perl
system("ulimit -a");
system("ulimit  -d unlimited");
system("ulimit -a");
time(seconds)        unlimited
file(blocks)         unlimited
data(kbytes)         2097152
stack(kbytes)        4194304
memory(kbytes)       unlimited
coredump(blocks)     unlimited
nofiles(descriptors) unlimited
time(seconds)        unlimited
file(blocks)         unlimited
data(kbytes)         2097152
stack(kbytes)        4194304
memory(kbytes)       unlimited
coredump(blocks)     unlimited
nofiles(descriptors) unlimited

[download]

In reply to ulimit value not getting set on AIX by cheekoo

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