linux-kernel - Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]

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:	Sat, 8 Dec 2007 20:13:30 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Parag Warudkar <parag.warudkar@...il.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]


* Parag Warudkar <parag.warudkar@...il.com> wrote:

> >    while :; do time usleep 1111111; done
> >
> > or do these sleeps fluctuate?
> 
> They seem to fluctuate - not sure if that's supposed to be exact or if 
> below variations are normal - This is when my compiles are running -

it's normal for them to fluctuate a little when load goes up and the 
task gets delayed.

'bad' fluctuations are ones that happen when the system is idle.

	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/