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Date: Thu, 9 Jul 2009 13:55:49 +0300
From: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Subject: Re: kmemeleak BUG: lock held when returning to user space!
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To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>, "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org
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On (07/09/09 11:47), Catalin Marinas wrote:
> Date: Thu, 09 Jul 2009 11:47:23 +0100
> From: Catalin Marinas <catalin.marinas@arm.com>
> To: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
> Cc: Pekka Enberg <penberg@cs.helsinki.fi>,
> 	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
> 	linux-kernel@vger.kernel.org, linux-mm@kvack.org
> Subject: Re: kmemeleak BUG: lock held when returning to user space!
> User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux)
>=20
> Sergey Senozhatsky <sergey.senozhatsky@mail.by> wrote:
> > kernel: [  149.507103] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D
> > kernel: [  149.507113] [ BUG: lock held when returning to user space! ]
> > kernel: [  149.507119] ------------------------------------------------
> > kernel: [  149.507127] cat/3279 is leaving the kernel with locks still =
held!
> > kernel: [  149.507135] 1 lock held by cat/3279:
> > kernel: [  149.507141]  #0:  (scan_mutex){+.+.+.}, at: [<c110707c>] kme=
mleak_open+0x4c/0x80
> >
> > problem is here:
> > static int kmemleak_open(struct inode *inode, struct file *file)
>=20
> It's been fixed in my kmemleak branch which I'll push to Linus:
>=20
Ok. Nice to hear.

> http://www.linux-arm.org/git?p=3Dlinux-2.6.git;a=3Dshortlog;h=3Dkmemleak
>=20
> --=20
> Catalin
>=20

	Sergey
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