linux-kernel - bluetooth cf slow (10KB/sec), lots of dmesg spam

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20091129155801.GA1634@ucw.cz>
Date:	Sun, 29 Nov 2009 16:58:01 +0100
From:	Pavel Machek <pavel@....cz>
To:	linux-bluetooth@...r.kernel.org,
	Marcel Holtmann <marcel@...tmann.org>,
	kernel list <linux-kernel@...r.kernel.org>
Subject: bluetooth cf slow (10KB/sec), lots of dmesg spam

Hi!

I'm using CF bluetooth card:

toy:~# setserial -av /dev/ttyS0
/dev/ttyS0, Line 0, UART: 16950/954, Port: 0xc48202f8, IRQ: 201
	Baud_base: 921600, close_delay: 50, divisor: 0
	closing_wait: 3000
	Flags: spd_normal skip_test

toy:~# hciconfig
hci0:	Type: UART
	BD Address: 00:10:60:AB:25:9A ACL MTU: 192:8 SCO MTU: 64:8
	UP RUNNING PSCAN ISCAN 
	RX bytes:1612262 acl:5084 sco:0 events:3602 errors:0
	TX bytes:507156 acl:3779 sco:0 commands:28 errors:0

...and it mostly works, but slowly, and with tons of complains. Card
is:

toy:~# lspcmcia -v
Socket 0 Bridge:   	[pxa2xx-pcmcia] 	(bus ID: pxa2xx-pcmcia)
	Configuration:	state: on	ready: yes
			Voltage: 3.3V Vcc: 3.3V Vpp: 0.0V
Socket 0 Device 0:	[serial_cs]		(bus ID: 0.0)
	Configuration:	state: on
	Product Name:   Compact Flash Bluetooth Card 
	Identification:	manf_id: 0x0279	card_id: 0x950b
			function: 2 (serial)
			prod_id(1): "Compact Flash" (0x95521410)
			prod_id(2): "Bluetooth Card" (0x7664fb1d)
			prod_id(3): --- (---)
			prod_id(4): --- (---)

I believe the problem is 115200 bitrate between system and CF serial;
I did setserial baud_base 921600,  but that does not seem to speed it
up. Do I need to do some special magic to enable high speed?

Any ideas?
									Pavel

PM: Adding info for No Bus:hci0
bcsp_recv: Out-of-order packet arrived, got 1 expected 0
PM: Adding info for No Bus:rfcomm1
PM: Adding info for No Bus:hci0:41
PM: Adding info for No Bus:bnep0
bcsp_recv: Short BCSP packet
bcsp_recv: Out-of-order packet arrived, got 5 expected 4
bcsp_recv: Out-of-order packet arrived, got 6 expected 4
SysRq : Changing Loglevel
Loglevel set to 1
bcsp_recv: Short BCSP packet
bcsp_recv: Out-of-order packet arrived, got 1 expected 0
bcsp_recv: Out-of-order packet arrived, got 2 expected 0
bcsp_recv: Out-of-order packet arrived, got 3 expected 0
bcsp_recv: Short BCSP packet
...
bcsp_recv: Out-of-order packet arrived, got 2 expected 7
bcsp_recv: Short BCSP packet
bcsp_recv: Out-of-order packet arrived, got 7 expected 6
bcsp_recv: Out-of-order packet arrived, got 0 expected 6
bcsp_recv: Out-of-order packet arrived, got 1 expected 6
bcsp_recv: Short BCSP packet
bcsp_recv: Error in BCSP hdr checksum
bcsp_recv: Out-of-order packet arrived, got 4 expected 2
bcsp_recv: Out-of-order packet arrived, got 5 expected 2
bcsp_recv: Short BCSP packet
bcsp_recv: Out-of-order packet arrived, got 2 expected 1
bcsp_recv: Out-of-order packet arrived, got 3 expected 1
bcsp_recv: Out-of-order packet arrived, got 4 expected 1
bcsp_unslip_one_byte: Invalid byte 00 after esc byte
bcsp_recv: Out-of-order packet arrived, got 4 expected 3
bcsp_recv: Out-of-order packet arrived, got 5 expected 3
bcsp_recv: Out-of-order packet arrived, got 6 expected 3
bcsp_recv: Short BCSP packet

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/