How to change ulimit value in the kernel?

[Romaric Guilloud]

How to change value of "stack" (here 1280 Mb) displayed at ulimit -a command in the kernel parameters so that it applies to everyone?
Is it a kernel parameter?

Rgds,

#ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) 1310720
stack(kbytes) 65536
memory(kbytes) unlimited
coredump(blocks) 4194303

[Patrick Wallek · Accepted solution]

The stack size is controlled by the maxssize kernel parameter. The data size is controlled by the maxdsize parameter.

Do you need a stack bigger than 64MB? Usually that is big enough.

[Pat Lieberg]

That's controlled by the maxssize kernel parameter.

[Patrick Wallek]

I slightly mistyped in my response. The kernel parameter names do *NOT* have an e at the end of them. They should be maxssiz and maxdsiz.

I should also point out the the max?siz parameters are the parameters for 32-bit programs. If you are talking 64-bit, the parameters are max?siz_64bit.

[Romaric Guilloud]

Thanks Patrick for the quick answer and clever explanation.
Rgds,

[Romaric Guilloud]

Many thanks to all.

[Pat Lieberg]

That's funny, cause I made the same typo. I guess greay minds think alike, or something like that.