Re: in.tftpd - ulimit -u not working? cgroups?

[Michal Hocko]

On Mon 11-03-13 15:47:37, Nikola Ciprich wrote:
[...]
> I also tried limiting memory using cgroups, but even with limit of
> 2MB, it can spawn much more processes than I'd like, and 1MB is too
> low... 

If you were using memory cgroup then be aware that the controller covers
only user space allocations by default which doesn't prevent forks from
creating new processes.

> Is it possible to limit number of processes using cgroups?

You might be interested in KMEM (CONFIG_MEMCG_KMEM) extension for memory
cgroup (see Documentation/cgroups/memory.txt "2.7 Kernel Memory Extension
(CONFIG_MEMCG_KMEM)" for more information)
-- 
Michal Hocko
SUSE Labs
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