linux-kernel - Re: [2.6.24 REGRESSION] BUG: Soft lockup

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Message-Id: <20080204213911.1bcbaf66.akpm@linux-foundation.org>
Date:	Mon, 4 Feb 2008 21:39:11 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Oliver Pinter (Pintér Olivér)" 
	<oliver.pntr@...il.com>
Cc:	"Linux Kernel" <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org, Stephen Smalley <sds@...ho.nsa.gov>,
	James Morris <jmorris@...ei.org>
Subject: Re: [2.6.24 REGRESSION] BUG: Soft lockup - with VFS

On Mon, 28 Jan 2008 09:31:43 +0100 "Oliver Pinter (Pintér Olivér)"  <oliver.pntr@...il.com> wrote:

> hi all!
> 
> in the 2.6.24 become i some soft lockups with usb-phone, when i pluged
> in the mobile, then the vfs-layer crashed. am afternoon can i the
> .config send, and i bisected the kernel, when i have time.
> 
> pictures from crash:
> http://students.zipernowsky.hu/~oliverp/kernel/regression_2624/

It looks like selinux's file_has_perm() is doing spin_lock() on an
uninitialised (or already locked) spinlock.


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