linux-kernel - Re: 3.10-rc: bluetooth disappeared on thinkpad x60 (regression)

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Date:	Mon, 10 Jun 2013 21:37:47 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	kernel list <linux-kernel@...r.kernel.org>,
	marcel@...tmann.org, gustavo@...ovan.org,
	linux-bluetooth@...r.kernel.org
Subject: Re: 3.10-rc: bluetooth disappeared on thinkpad x60 (regression)

Hi!

> > I ran hcidump, while I did hciconfig hci0 up on other console.
> > 
> > root@amd:~# hcidump hci0
> > HCI sniffer - Bluetooth packet analyzer ver 1.42
> > device: hci0 snap_len: 1028 filter: 0xffffffff
> > < HCI Command: Reset (0x03|0x0003) plen 0
> > > HCI Event: Command Complete (0x0e) plen 4
> > < HCI Command: Read Local Supported Features (0x04|0x0003) plen 0
> > > HCI Event: Command Complete (0x0e) plen 12
> > < HCI Command: Read Local Version Information (0x04|0x0001) plen 0
> > > HCI Event: Command Complete (0x0e) plen 12
> > < HCI Command: Read BD ADDR (0x04|0x0009) plen 0
> > > HCI Event: Command Complete (0x0e) plen 10
> > < HCI Command: Read Buffer Size (0x04|0x0005) plen 0
> > > HCI Event: Command Complete (0x0e) plen 11
> > < HCI Command: Read Class of Device (0x03|0x0023) plen 0
> > > HCI Event: Command Complete (0x0e) plen 7
> > < HCI Command: Read Local Name (0x03|0x0014) plen 0
> > > HCI Event: Command Complete (0x0e) plen 252
> > < HCI Command: Read Voice Setting (0x03|0x0025) plen 0
> > > HCI Event: Command Complete (0x0e) plen 6
> > < HCI Command: Set Event Filter (0x03|0x0005) plen 1
> > > HCI Event: Command Complete (0x0e) plen 4
> > < HCI Command: Write Connection Accept Timeout (0x03|0x0016) plen 2
> > > HCI Event: Command Complete (0x0e) plen 4
> > < HCI Command: Delete Stored Link Key (0x03|0x0012) plen 7
> > > HCI Event: Command Complete (0x0e) plen 4
> > 
> > Hope this helps,
> 
> It gives a better idea but is still lacking a bit of information since
> hcidump is by default quite restrictive in what it outputs. Could you
> try once more, but this time pass the -X and -V command line switches to
> hcidump. It should make it output the full set of parameters of the HCI
> commands and events. What I'd also ask is if you could make an
> additional binary HCI log in the btsnoop format so that we could analyze
> the log with btmon (which has better decoders than hcidump). You get
> hcidump to do this by passing "-B -w <filename>" as parameters and can
> verify that the produced file is correct by running hcidump -r
> <file>.

Ok, here's text log:

(The keys exchanged are not long-lived, so it is okay to post this
publicly.... right?)

Binary dump is attached. Let me know if you need something more,
								Pavel

root@amd:~# hcidump hci0 -X -V
HCI sniffer - Bluetooth packet analyzer ver 1.42
device: hci0 snap_len: 1028 filter: 0xffffffff
< HCI Command: Reset (0x03|0x0003) plen 0
> HCI Event: Command Complete (0x0e) plen 4
    Reset (0x03|0x0003) ncmd 1
    status 0x00
< HCI Command: Read Local Supported Features (0x04|0x0003) plen 0
> HCI Event: Command Complete (0x0e) plen 12
    Read Local Supported Features (0x04|0x0003) ncmd 1
    status 0x00
    Features: 0xff 0xff 0x8d 0xfe 0x9b 0xf9 0x00 0x80
< HCI Command: Read Local Version Information (0x04|0x0001) plen 0
> HCI Event: Command Complete (0x0e) plen 12
    Read Local Version Information (0x04|0x0001) ncmd 1
    status 0x00
    HCI Version: 2.0 (0x3) HCI Revision: 0x206c
    LMP Version: 2.0 (0x3) LMP Subversion: 0x4132
    Manufacturer: Broadcom Corporation (15)
< HCI Command: Read BD ADDR (0x04|0x0009) plen 0
> HCI Event: Command Complete (0x0e) plen 10
    Read BD ADDR (0x04|0x0009) ncmd 1
    status 0x00 bdaddr 00:16:CE:EC:4D:C2
< HCI Command: Read Buffer Size (0x04|0x0005) plen 0
> HCI Event: Command Complete (0x0e) plen 11
    Read Buffer Size (0x04|0x0005) ncmd 1
    status 0x00
    ACL MTU 1017:8 SCO MTU 64:0
< HCI Command: Read Class of Device (0x03|0x0023) plen 0
> HCI Event: Command Complete (0x0e) plen 7
    Read Class of Device (0x03|0x0023) ncmd 1
    status 0x00 class 0x000000
< HCI Command: Read Local Name (0x03|0x0014) plen 0
> HCI Event: Command Complete (0x0e) plen 252
    Read Local Name (0x03|0x0014) ncmd 1
    status 0x00 name 'IBM Callisto'
< HCI Command: Read Voice Setting (0x03|0x0025) plen 0
> HCI Event: Command Complete (0x0e) plen 6
    Read Voice Setting (0x03|0x0025) ncmd 1
    status 0x00 voice setting 0x0060
< HCI Command: Set Event Filter (0x03|0x0005) plen 1
    type 0 condition 0
    Clear all filters
> HCI Event: Command Complete (0x0e) plen 4
    Set Event Filter (0x03|0x0005) ncmd 1
    status 0x00
< HCI Command: Write Connection Accept Timeout (0x03|0x0016) plen 2
    timeout 32000
> HCI Event: Command Complete (0x0e) plen 4
    Write Connection Accept Timeout (0x03|0x0016) ncmd 1
    status 0x00
< HCI Command: Delete Stored Link Key (0x03|0x0012) plen 7
    bdaddr 00:00:00:00:00:00 all 1
> HCI Event: Command Complete (0x0e) plen 4
    Delete Stored Link Key (0x03|0x0012) ncmd 1
    status 0x11 deleted 0
    Error: Unsupported Feature or Parameter Value


-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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