linux-kernel - Re: 2.6.20-git15 BUG: soft lockup detected on CPU#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]

Message-Id: <1172215923.6774.7.camel@Homer.simpson.net>
Date:	Fri, 23 Feb 2007 08:32:03 +0100
From:	Mike Galbraith <efault@....de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Michal Piotrowski <michal.k.k.piotrowski@...glemail.com>,
	tglx@...utronix.de, LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.20-git15 BUG: soft lockup detected on CPU#0! - timers?

On Fri, 2007-02-23 at 07:08 +0100, Ingo Molnar wrote:

> Index: linux/kernel/sched.c
> ===================================================================
> --- linux.orig/kernel/sched.c
> +++ linux/kernel/sched.c
> @@ -4689,6 +4689,7 @@ int __sched cond_resched_softirq(void)
>  	BUG_ON(!in_softirq());
>  
>  	if (need_resched() && system_state == SYSTEM_RUNNING) {
> +		WARN_ON(current->state != TASK_RUNNING);
>  		raw_local_irq_disable();
>  		_local_bh_enable();
>  		raw_local_irq_enable();

I'm getting NOHZ: local_softirq_pending 02 or 10 every few seconds if
the box is doing anything, and the WARN_ON() has yet to trigger.

	-Mike

-
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/