linux-kernel - Re: Changing Kernel thread priorities

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 7 Jun 2011 17:15:37 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Peter Zijlstra <peterz@...radead.org>
cc:	Remy Bohmer <linux@...mer.net>,
	Armin Steinhoff <armin@...inhoff.de>,
	Johannes Bauer <hannes_bauer@....at>,
	Monica Puig-Pey <puigpeym@...can.es>,
	Rolando Martins <rolando.martins@...il.com>,
	linux-rt-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Changing Kernel thread priorities

On Tue, 7 Jun 2011, Peter Zijlstra wrote:
> On Tue, 2011-06-07 at 13:02 +0200, Remy Bohmer wrote:
> > Well, I 100% agree that it must be under full userspace control to be
> > able to set the priorities. But, the kernel default assumption of
> > starting everything at 50 is wrong as well.
> > Imagine the following situation:
> > * Realtime application is running and has threads active in the range
> > of prios 20 - 90.
> > * Now bring up a network device, it immediately starts spamming the
> > system at prio 50 _before_ you have the chance to set it below 20 by
> > means of chrt.
> > * RT behaviour is gone!
> 
> Good point I guess, Thomas should we default to 1 for everything?

No objections.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/