On Mon, 22.06.09 23:46, Jörn Nettingsmeier ([email protected]) wrote:
> > What is so difficult to understand that rtkit is not intended to be a > > solution for hardcore rt users? > > > > rtkit is not for you! > > > > Let me repeat this: > > > > RTKIT IS NOT FOR YOU! > > this is getting childish. my claim is: if you give rt to a user, you > enable him to fuck the machine up. that's a law of nature. you can do > all kinds of very clever things and try to have a very fast watchdog, > but it doesn't prevent abuse. That is simply bogus. With the reset-on-fork kernel patch in place you can perfectly supervise an RT process and it cannot evade you. If the system becomes unresponsive (which is all that we try to detect), then we can demote/kill everyone who's misbehaving. The worst thing that can happen is that we demote more processes than necessary. But so what? As long as the evildoer's process is demoted/killed you have a usable system again. Also, stuff such as RLIMIT_RTTIME (which we specifically check to be set in clients in rtkit) should make sure that the process cannot even misuse RT in the first place. Really, all this has been answered before. You can run around in circles if you like to, but this is where I get off. Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net http://0pointer.net/lennart/ GnuPG 0x1A015CC4 _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
