| 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
| ||
|
Date: Sun, 15 Sep 2013 16:47:29 +0300 From: Gilad Ben-Yossef <gilad@...yossef.com> To: Frederic Weisbecker <fweisbec@...il.com> Cc: Christoph Lameter <cl@...ux.com>, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, Mike Frysinger <vapier@...too.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> Subject: Re: [RFC] Restrict kernel spawning of threads to a specified set of cpus. On Thu, Sep 12, 2013 at 5:16 PM, Frederic Weisbecker <fweisbec@...il.com> wrote: > On Thu, Sep 12, 2013 at 02:10:56PM +0000, Christoph Lameter wrote: >> On Thu, 12 Sep 2013, Frederic Weisbecker wrote: >> >> > Why not do this from userspace instead? >> >> Because the cpumasks are hardcoded in the kernel code. >> > > Ok but you can change the affinity of a kthread from userspace, as > long as you define a cpu set that is among that kthread's cpus allowed. There is also the problem of kernel threads registering timers. We don't have a good way to migrate those yet, I believe. Gilad -- Gilad Ben-Yossef Chief Coffee Drinker gilad@...yossef.com Israel Cell: +972-52-8260388 US Cell: +1-973-8260388 http://benyossef.com "If you take a class in large-scale robotics, can you end up in a situation where the homework eats your dog?" -- Jean-Baptiste Queru -- 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/
Powered by blists - more mailing lists