linux-kernel - vga_arb warning [was: mmotm 2009-11-01-10-01 uploaded]

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Date:	Sun, 01 Nov 2009 22:47:05 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	linux-kernel@...r.kernel.org
CC:	mm-commits@...r.kernel.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Tiago Vignatti <tiago.vignatti@...ia.com>,
	Dave Airlie <airlied@...hat.com>, kvm@...r.kernel.org
Subject: vga_arb warning [was: mmotm 2009-11-01-10-01 uploaded]

On 11/01/2009 07:07 PM, akpm@...ux-foundation.org wrote:
> The mm-of-the-moment snapshot 2009-11-01-10-01 has been uploaded to

Hi, I got the following warning while booting an image in qemu-kvm:

WARNING: at fs/attr.c:158 notify_change+0x2da/0x310()
Hardware name:
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.32-rc5-mm1_64 #862
Call Trace:
 [<ffffffff81038008>] warn_slowpath_common+0x78/0xb0
 [<ffffffff8103804f>] warn_slowpath_null+0xf/0x20
 [<ffffffff810d32ba>] notify_change+0x2da/0x310
 [<ffffffff810c5b88>] ? fsnotify_create+0x48/0x60
 [<ffffffff810c6d2b>] ? vfs_mknod+0xbb/0xe0
 [<ffffffff812487b6>] devtmpfs_create_node+0x1e6/0x270
 [<ffffffff811170d0>] ? sysfs_addrm_finish+0x20/0x280
 [<ffffffff811175d6>] ? __sysfs_add_one+0x26/0xf0
 [<ffffffff81117b6c>] ? sysfs_do_create_link+0xcc/0x160
 [<ffffffff81241cf0>] device_add+0x1e0/0x5b0
 [<ffffffff8124adb1>] ? pm_runtime_init+0xa1/0xb0
 [<ffffffff81248f05>] ? device_pm_init+0x65/0x70
 [<ffffffff812420d9>] device_register+0x19/0x20
 [<ffffffff81242290>] device_create_vargs+0xf0/0x120
 [<ffffffff812422ec>] device_create+0x2c/0x30
 [<ffffffff810c0516>] ? __register_chrdev+0x86/0xf0
 [<ffffffff81245599>] ? __class_create+0x69/0xa0
 [<ffffffff814326e9>] ? mutex_lock+0x19/0x50
 [<ffffffff811d4e23>] misc_register+0x93/0x170
 [<ffffffff818994a0>] ? vga_arb_device_init+0x0/0x77
 [<ffffffff818994b3>] vga_arb_device_init+0x13/0x77
 [<ffffffff818994a0>] ? vga_arb_device_init+0x0/0x77
 [<ffffffff810001e7>] do_one_initcall+0x37/0x190
 [<ffffffff8187d6ce>] kernel_init+0x172/0x1c8
 [<ffffffff81003c7a>] child_rip+0xa/0x20
 [<ffffffff8187d55c>] ? kernel_init+0x0/0x1c8
 [<ffffffff81003c70>] ? child_rip+0x0/0x20
---[ end trace 4eaa2a86a8e2da22 ]---

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