Return-path: Received: from mail.sysgo.com ([195.145.229.155]:52584 "EHLO mail.sysgo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755651Ab0KAMMK (ORCPT ); Mon, 1 Nov 2010 08:12:10 -0400 Date: Mon, 1 Nov 2010 13:11:59 +0100 From: Pavel Machek To: kernel list , chunkeey@googlemail.com, linux-wireless@vger.kernel.org Subject: Re: carl9170 disconnects under load Message-ID: <20101101121159.GB19442@pma.sysgo.com> References: <20101026104811.GA11357@pma.sysgo.com> <20101101093140.GA2766@pma.sysgo.com> <20101101094649.GA3391@pma.sysgo.com> <20101101101012.GB3391@pma.sysgo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20101101101012.GB3391@pma.sysgo.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi! > > > > I'm testing driver from -wireless testing, cca 2.6.26-rc7. > > > > > > > > It seems to work (up to 802.11n speeds -- I've seen iwconfig claiming > > > > 121 MB/sec), but disconnects rather quickly when under load: > > > > > > > > telnet 192.168.1.3 chargen > /dev/null > > > > > > > > The machine is powerpc mpc5200b board, with OHCI driver -- it is not > > > > capable of USB2.0 speeds. > > > > > > So I tried with different AP, one not capable of 802.11n speeds. It > > > fails in different way :-(. But this one is with my backport to > > > 2.6.34... > > > > But it fails with wireless-testing tree, too :-(. > > > > Linux mpc5200b 2.6.36-rc8-wl-pma-48197-gdcae733-dirty #43 Tue Oct 26 > > 12:06:21 CEST 2010 ppc > > It works "better" if I force AP to 1Mbps.... (Note that I have USB1.1 > host only). Ok, so I tried on powerpc machine with usb2.0... it worked a bit better, but after a reboot, I got this one: usb 1-3: Atheros AR9170 is registered as 'phy0' kjournald starting. Commit interval 5 seconds EXT3-fs (sda3): warning: maximal mount count reached, running e2fsck is recommended EXT3-fs (sda3): using internal journal EXT3-fs (sda3): recovery complete EXT3-fs (sda3): mounted filesystem with writeback data mode warning: `proftpd' uses 32-bit capabilities (legacy support in use) PHY: f0003000:01 - Link is Up - 100/Full mpc5xxx_can f0000900.can: setting BTR0=0x07 BTR1=0x1c FW: MAC RESET wlan0: authenticate with 00:11:95:05:30:d7 (try 1) wlan0: authenticated wlan0: associate with 00:11:95:05:30:d7 (try 1) wlan0: RX AssocResp from 00:11:95:05:30:d7 (capab=0x421 status=0 aid=1) wlan0: associated usb 1-3: no command feedback received (-110). carl9170 cmd: 08 01 00 00 f0 36 1c 00 00 24 00 00 .....6...$.. usb 1-3: restart device (6) writing reg 0x1c36f0 (val 0x2400) failed (-110) lost 3 command responses/traps! w:13 g:0 writing reg 0x1d0104 (val 0x3) failed (-110) usb 1-3: kill pending tx urbs. usb 1-3: firmware upload failed (-110). usb 1-3: stuck tx urbs! usb 1-3: Failed to restart device (-110). writing reg 0x1c36f0 (val 0x2400) failed (-5) writing reg 0x1c36f0 (val 0x2400) failed (-5) writing reg 0x1c36f0 (val 0x5000) failed (-5) wlan0: deauthenticating from 00:11:95:05:30:d7 by local choice (reason=3) usb 1-3: reset high speed USB device using ehci_hcd and address 3 cfg80211: Calling CRDA to update world regulatory domain