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Date:      Mon, 07 Dec 2009 21:04:29 -0500
From:      Pete Carah <pete@altadena.net>
To:        stable@freebsd.org
Subject:   atheros problem
Message-ID:  <4B1DB42D.3090001@altadena.net>

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With a recent build of 8-stable (last week and again yesterday) the ath
9280 driver doesn't work; wpa_supplicant says "scanning" forever, and if
one observes ifconfig it is scanning some of the 11a frequencies and no
11g ones.  It also doesn't pick up a legit 11a AP at home, nor does it see
*any* AP at work (there are about 12 visible from where I sit).  The
card works in both fedora and windoze (though fedora has a very
annoying 7 second pause every minute or so (irregular intervals).

I can stop wpa_supplicant and manually up it and give ifconfig scan;
this hangs forever and also only appears to be listing 11a freqs when you
look with ifconfig from another window.

It had worked before...  The only change that shows up in the ath driver
is "Add WorldB SKU" to ah_regdomain.c on the 25th.  My previous
build was somewhere around the 17th so that must have broken it.  A
cursory svn diff doesn't look bad to me but I only looked at the syntax.
And none of the net80211 files have changed since the 7th in my source tree.

A second problem that also crept up in the most recent update
(yesterday) one of 3 instances of acpi_ec0 causes a panic.  If I specify
boot_verbose="YES" the panic goes away!!  Since this is a laptop with no
serial port (any modern laptop :-(  I can't capture the panic
directly, only copy it with a camera  (aren't digital cameras
wonderful).  Looking at the last message printed in verbose, I'm guessing an
access to a freed area; why verbose "fix"es it I don't know (maybe
printing reallocates?)

This laptop has always given a string of error messages regarding its
ec0. (Acer 4730; dual-core 2gig intel cpu, intel chipset, running as amd64)
(I run 32-bit windoze but 64 bsd and linux.)

-- Pete




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