linux-kernel - Re: Very high CPU load when idle with 3.0-rc1

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]

Message-ID: <20110530121759.GI22324@elte.hu>
Date:	Mon, 30 May 2011 14:17:59 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Damien Wyart <damien.wyart@...e.fr>,
	Mike Galbraith <efault@....de>, linux-kernel@...r.kernel.org,
	paulmck <paulmck@...ux.vnet.ibm.com>
Subject: Re: Very high CPU load when idle with 3.0-rc1


* Peter Zijlstra <peterz@...radead.org> wrote:

> The problem that patch tried to address is that the RCU threads 
> could stay in UNINTERRUPTIBLE state for quite a while and 
> triggering the hung task detector due to on-demand wake-ups.

and it's not just the hung task detector, but obviously also the load 
average itself that would be skewed in this original bug case as 
well.

Thanks,

	Ingo
--
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/