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

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Message-ID: <82e4877d0712071531h53dc7e3cncd7ab5ff090cada1@mail.gmail.com>
Date:	Fri, 7 Dec 2007 18:31:43 -0500
From:	"Parag Warudkar" <parag.warudkar@...il.com>
To:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Ingo Molnar" <mingo@...e.hu>
Subject: Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]

On Dec 7, 2007 6:12 PM, Pallipadi, Venkatesh
<venkatesh.pallipadi@...el.com> wrote:

> Looks like tick_broadcast_lock did not get freed in some path.
> You do not see this when you CPU_IDLE is not configured?
>
> Thanks,
> Venki
>

No, I did not see this prior to enabling CPU_IDLE.

All previous kernels without CPU_IDLE also had soft lockup detection enabled.

Parag
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