how to increase maxdsiz

[szhiyong]

Hi,

I meet some problem in malloc, I have to malloc 6 40MB structure array. But when I malloc the second 40MB, the malloc fails. I think this is because my hp/ux 10.20 maxdsiz is too small, it is just 64MB. I try to use command "ulimit -d unlimited", but there is error message "the specified value exceeds the user' allowable limit".

Can anyone help me to solve this problem?

Thanks!

Zhiyong

[Michael Tully · Accepted solution]

Hi,

You need to increase the size of parameter
in your kernel. To do this use either 'sam'
or do it from the command line. Unfortunately
this will require you to generate a new
kernel which will require a reboot for it to
be loaded and used.

sam --> Kernel Configuration --> change the
value and select process new kernel from the
drop down menu.

-OR-
# cd /stand/build
# /usr/lbin/sysadm/system_prep -s system
# vi system (make your changes and save the file)
# mk_kernel -s system
# cd /stand
# mv vmunix vmunix_prev
# mv system system.save
# mv /stand/build/vmunix.test /stand/vmunix
# mv /stand/build/system /stand/system
# cd /
Reboot your system
# shutdown -r -y 0

HTH
-Michael

[szhiyong]

Hi,Michael,

Thanks for your reply and help.

I check the sam, I have a another question. If I want to increase maxdsiz as 700MB, how to represents as 32 bit number.

Have a good day!

Zhiyong

[Santosh Nair_1]

Hi,

You can enter the value for maxdsiz in hex (0x700000) or in decimal (7340032).

-Santosh

[szhiyong]

Hi,Santosh

Thanks for your help!

I will try this.

Have a good night!

Zhiyong