linux-kernel - Re: ath5k gets lost with eeepc-laptop removal

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Message-ID: <20081031151901.2d68c32d@doriath.conectiva>
Date:	Fri, 31 Oct 2008 15:19:01 -0200
From:	"Luiz Fernando N. Capitulino" <lcapitulino@...driva.com.br>
To:	"Nick Kossifidis" <mickflemm@...il.com>
Cc:	linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
	willy@...ux.intel.com, lrodriguez@...eros.com
Subject: Re: ath5k gets lost with eeepc-laptop removal

Em Fri, 31 Oct 2008 18:26:28 +0200
"Nick Kossifidis" <mickflemm@...il.com> escreveu:

| 2008/10/31 Luiz Fernando N. Capitulino <lcapitulino@...driva.com.br>:
| >
| >  Hi guys,
| >
| >  If I do a 'rmmod eeepc-laptop', while connected to my AP, I get the
| > following error messages from ath5k:
| >
| > """
| > ath5k phy0: noise floor calibration timeout (2417MHz)
| > ath5k phy0: failed to wakeup the MAC Chip
| > ath5k phy0: can't reset hardware (-5)
| > ath5k phy0: failed to wakeup the MAC Chip
| > ath5k phy0: can't reset hardware (-5)
| > wlan0: No ProbeResp from current AP 00:1d:0f:e9:c7:c0 - assume out of range
| > ath5k phy0: failed to wakeup the MAC Chip
| > ath5k phy0: ath5k_chan_set: unable to reset channel (2412 Mhz)
| > wlan0: failed to set freq to 2412 MHz for scan
| > ath5k phy0: failed to wakeup the MAC Chip
| > ath5k phy0: ath5k_chan_set: unable to reset channel (2417 Mhz)
| > wlan0: failed to set freq to 2417 MHz for scan
| > ath5k phy0: failed to wakeup the MAC Chip
| > ath5k phy0: ath5k_chan_set: unable to reset channel (2422 Mhz)
| > wlan0: failed to set freq to 2422 MHz for scan
| > ath5k phy0: failed to wakeup the MAC Chip
| > ath5k phy0: ath5k_chan_set: unable to reset channel (2427 Mhz)
| > wlan0: failed to set freq to 2427 MHz for scan
| > ath5k phy0: failed to wakeup the MAC Chip
| > ath5k phy0: ath5k_chan_set: unable to reset channel (2432 Mhz)
| > wlan0: failed to set freq to 2432 MHz for scan
| > wlan0: failed to set freq to 2437 MHz for scan
| > wlan0: failed to set freq to 2442 MHz for scan
| > wlan0: failed to set freq to 2447 MHz for scan
| > wlan0: failed to set freq to 2452 MHz for scan
| > wlan0: failed to set freq to 2457 MHz for scan
| > wlan0: failed to set freq to 2462 MHz for scan
| > wlan0: failed to set freq to 2467 MHz for scan
| > wlan0: failed to set freq to 2472 MHz for scan
| > wlan0: failed to set freq to 2484 MHz for scan
| > wlan0: failed to restore operational channel after scan
| > wlan0: authenticate with AP 00:1d:0f:e9:c7:c0
| > wlan0: authenticate with AP 00:1d:0f:e9:c7:c0
| > wlan0: authenticate with AP 00:1d:0f:e9:c7:c0
| > wlan0: authentication with AP 00:1d:0f:e9:c7:c0 timed out
| > """
| >
| >  Then I lost my wireless connection.
| >
| >  I'm running latest Linus git tree (2.6.28-rc2) on a Eeepc 701.
| >
| >  The problem doesn't happen on 2.6.27.4, but as 2.6.28-rc1 doesn't
| > boot on this machine, it would be a bit difficult to bisect it.
| >
| >  Thanks.
| >
| 
| After this does ath_info work ?

 No, it doesn't. It says:

"""
MAC revision 0xffff is not supported!
"""

 And I have realized that I get a flood of 'failed to wakeup'
and 'can't reset the hardware' error messages, just some seconds
after the eeepc-laptop module removal.

-- 
Luiz Fernando N. Capitulino
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