Re: [Valgrind-users] How to Valgrind processes near 256GB?

[Ivo R. <iv...@iv...>]

2016-12-07 18:39 GMT+01:00 Gregory Czajkowski <gcf...@gm...>:

> I have processes near 256GB, need to run valgrind to determine why, but it
> runs out of memory ~60GB
>
>
> ==15336==     Valgrind's memory management: out of memory:
>
> ==15336==        newSuperblock's request for 4194304 bytes failed.
>
> ==15336==        62,289,825,792 bytes have already been mmap-ed ANONYMOUS.
>
> ==15336==     Valgrind cannot continue.  Sorry.
>
> ==15336==     more, depending on the tool.  On a 64-bit machine, Valgrind
> ==15336==     should be able to make use of up 32GB memory.
>
> How can it's limits be increased?
>

If you google around then you'll hit:
http://stackoverflow.com/questions/8644234/why-is-valgrind-limited-to-32-gb-on-64-bit-architectures
http://valgrind.10908.n7.nabble.com/increase-32G-limit-td43507.html

This topic was also recently discussed on Valgrind user's list.

Kind regards,
I.