W dniu 3 kwietnia 2011 12:54 użytkownik Lennart Poettering
<mzerqung(a)0pointer.de> napisał:
On Sun, 03.04.11 13:10, Michał Piotrowski (mkkp4x4(a)gmail.com) wrote:
> Hi,
>
> I can write to /run/user/michal in this way I can fill the entire free
> tmpfs space which is not good from my POV.
Yupp, this is trivially fixable by placing another tmpfs on /run/user,
which can be done by installing a run-user.mount unit.
We considered doing so by default, but stepped back a little, since we
didn't want to add another tmpfs to the mix, just like that. But yeah,
we probably should do that.
I see no other way out here because tmpfs does not support quota.
BTW. There still be a possibility to deadlock machine if you have a
not limited /tmp on tmpfs. By default tmpfs can use a half of system
memory size, so if you got a two user writable tmpfs file systems you
can try to deadlock system.
Lennart
--
Lennart Poettering - Red Hat, Inc.
--
Best regards,
Michal
http://eventhorizon.pl/