Return-Path: <cyrus@holtmann.org>
Date: Wed, 18 Jul 2012 10:04:19 +0300
From: Andrei Emeltchenko <andrei.emeltchenko.news@gmail.com>
To: victor yeo <victoryeo1974@gmail.com>
Cc: Gustavo Padovan <gustavo@padovan.org>,
	linux-bluetooth@vger.kernel.org
Subject: Re: HCI Remote Name Request error "Page Timeout"
Message-ID: <20120718070412.GB18697@aemeltch-MOBL1>
References: <CADX0rsZBLixOvNLhpoSH6PuP3m8LWP6w6CkDKB+cvhBAnwyT0g@mail.gmail.com>
 <20120717180556.GB19582@joana>
 <CADX0rsbXe8Sv8cu_Q_3BYLWCC=N3TCQdKVCC1Tay_gSfrAQWpQ@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
In-Reply-To: <CADX0rsbXe8Sv8cu_Q_3BYLWCC=N3TCQdKVCC1Tay_gSfrAQWpQ@mail.gmail.com>
Sender: linux-bluetooth-owner@vger.kernel.org
List-ID: <linux-bluetooth.vger.kernel.org>

Hi Victor,

On Wed, Jul 18, 2012 at 02:26:47PM +0800, victor yeo wrote:
> > Hi Victor,
> >
> > * victor yeo <victoryeo1974@gmail.com> [2012-07-17 17:34:32 +0800]:
> >
> >> Hi,
> >>
> >> The hcidump program shows a remote name request "Page Timeout" error.
> >> I do not understand the reason. The Bluez stack requests for remote
> >> name, the device replied with 'Nonin_Medical_Inc._359443' twice, Then
> >> Bluez stack requests again, got "Page Timeout" error, and connection
> >> stops. What is the reason of this behavior?
> >>
> >> Thanks,
> >> Victor
> >>
> >> < HCI Command: Remote Name Request (0x01|0x0019) plen 10
> >>     bdaddr 00:1C:05:00:70:44 mode 2 clkoffset 0x0000
> >> > HCI Event: Command Status (0x0f) plen 4
> >>     Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
> >> > HCI Event: Remote Name Req Complete (0x07) plen 255
> >>     status 0x00 bdaddr 00:1C:05:00:70:44 name 'Nonin_Medical_Inc._359443'
> >> < HCI Command: Remote Name Request (0x01|0x0019) plen 10
> >>     bdaddr 00:1C:05:00:70:44 mode 2 clkoffset 0x0000
> >> > HCI Event: Command Status (0x0f) plen 4
> >>     Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
> >> > HCI Event: Remote Name Req Complete (0x07) plen 255
> >>     status 0x00 bdaddr 00:1C:05:00:70:44 name 'Nonin_Medical_Inc._359443'
> >> < HCI Command: Remote Name Request (0x01|0x0019) plen 10
> >>     bdaddr 00:1C:05:00:70:44 mode 2 clkoffset 0x0000
> >> > HCI Event: Command Status (0x0f) plen 4
> >>     Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
> >> > HCI Event: Remote Name Req Complete (0x07) plen 255
> >>     status 0x04 bdaddr 00:1C:05:00:70:44 name ''
> >>     Error: Page Timeout

BTW: What about adding timestamp, just wondering are those requests sent
immediately one after one.

> > Can you enable dynamic_debug on your kernel for the bluetooth module and post
> > those logs to us? I wanna see what HCI is doing here.
> >
> >         Gustavo
> 
> So i re-build the kernel with CONFIG_DYNAMIC_DEBUG, use the newly
> built kernel, then run?
> 
> echo -n 'module bluetoothd +p' >    <debugfs>/dynamic_debug/control

something like this is enough:

	echo 'file l2cap_core.c +fpt' > /debugfs/dynamic_debug/control; \
	echo 'file hci_conn.c +fpt' > /debugfs/dynamic_debug/control; \
	echo 'file hci_event.c +fpt' > /debugfs/dynamic_debug/control; \
	echo 'file hci_core.c +fpt' > /debugfs/dynamic_debug/control"

Best regards 
Andrei Emeltchenko