Re: Current break round up

[Frank Kotler <fbkotler@xxxxxxxxxxx>]

Kircsi Tibor wrote:
> Hi,
>
> Sorry for my english. I started learn assembly again after 15 years.
> Now, I'm learning about memory management and sys_brk system call. I've
> created a really simple program, which try to extend the heap size. I've
> read, when sys_brk is called with the new break address(last usable
> address of the heap or data segment), it will be rounded up to the next
> nearest page, but it didn't. Am I misundestand somthing?

I've noticed this. Seems to be related to kernel version (2.4.33.3 
here). May be a "bug"? I think you can access memory up to the top of 
the page (what you/we would "expect" brk to return). I don't know what 
to make of it.

Best,
Frank

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