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Date:      Sun, 28 Jan 2007 10:45:06 -0800
From:      Sam Leffler <sam@errno.com>
To:        freebsd-stable@freebsd.org
Subject:   Re: ath0: ath_reset: unable to reset hardware; hal status 3
Message-ID:  <45BCEF32.3030101@errno.com>
In-Reply-To: <20070128105053.GA93664@tirith.brixandersen.dk>
References:  <20070128105053.GA93664@tirith.brixandersen.dk>

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Henrik Brix Andersen wrote:
> Hi all,
> 
> I have noticed a problem when using ath(4) as an 802.11g access point
> with hostapd(8) and WPA2-PSK CCMP.
> 
> The following problem seems to only occur when a Microsoft Windows XP
> STA connects to the AP in 802.11g mode, my FreeeBSD STAs doesn't seem
> to trigger this:
> 
> Jan 28 11:21:07 osgiliath kernel: ath0: stuck beacon; resetting (bmiss count 4)
> Jan 28 11:21:07 osgiliath kernel: ath0: ath_reset: unable to reset hardware; hal status 3
> Jan 28 11:21:25 osgiliath kernel: ath0: device timeout
> Jan 28 11:21:25 osgiliath kernel: ath0: stuck beacon; resetting (bmiss count 4)
> Jan 28 11:21:25 osgiliath kernel: ath0: ath_reset: unable to reset hardware; hal status 3
> Jan 28 11:21:37 osgiliath kernel: ath0: device timeout
> Jan 28 11:21:38 osgiliath kernel: ath0: stuck beacon; resetting (bmiss count 4)
> Jan 28 11:21:38 osgiliath kernel: ath0: ath_reset: unable to reset hardware; hal status 3
> Jan 28 11:21:46 osgiliath kernel: ath0: device timeout
> 
> This is FreeBSD RELENG_6 (nanoBSD) as of yesterday with the new
> ath_hal(4) running on a Soekris net4801-50:
> 
> ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
> ath0: <Atheros 5212> mem 0xa0010000-0xa001ffff irq 11 at device 14.0 on pci0
> ath0: Ethernet address: 00:05:4e:42:e8:7c
> ath0: mac 5.6 phy 4.1 5ghz radio 1.7 2ghz radio 2.3
> 
> The same problem occured with version 0.9.17.2 of ath_hal(4).
> 
> I have increased the RX/TX buffers in ath(4) as shown in this snippet
> from my kernel configuration:
> 
> device	ath
> device	ath_hal
> device	ath_rate_sample
> 
> options	ATH_RXBUF=80
> options	ATH_TXBUF=200
> 
> The only way I can get the AP running again after the above messages
> to syslog is to reboot it. The problem doesn't seem to occur in
> 802.11b mode nor in 802.11g mode with only FreeBSD STAs.
> 
> Any help in debugging this will be appreciated.

I take it you tried ifconfig'ing the interface down and up?

The output of athstats at the point where things are wedged might be
useful.  Also verify if only tx is wedged (e.g. athstats 1 will show you
if you're receiving frames).

The fact that the card cannot be reset seems to imply the mac is somehow
locked up.  I vaguely recall some h/w issues like this on older cards
(and you are using a rather old card) but nothing that wasn't handled by
doing a reset operation.  Best suggestion I can make is to use a
different model card.

	Sam



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