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Date:      Wed, 14 Dec 2005 17:58:25 -0800
From:      George Hartzell <hartzell@kestrel.alerce.com>
To:        Sam Leffler <sam@errno.com>
Cc:        hartzell@alerce.com, freebsd-mobile@freebsd.org
Subject:   Re: 6-STABLE, ath, wpa_supplicant/dhcp and suspend/resume problem.
Message-ID:  <17312.52673.193551.922590@satchel.alerce.com>
In-Reply-To: <439B39F0.1040808@errno.com>
References:  <17307.3792.552944.551108@satchel.alerce.com> <439B1F73.4000804@errno.com> <20051210185945.GD12946@odin.ac.hmc.edu> <17307.11863.508599.269079@satchel.alerce.com> <439B39F0.1040808@errno.com>

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Sam Leffler writes:
 > [...]
 > Please send me your wpa_supplicant.conf file offline and I'll see if I 
 > can recreate what's going on.  It may be something specific to WEP 
 > though I can't imagine why.

Hi Sam and -mobile,

I've been poking around looking for clues to my problem [IBM T42p,
6-Stable, ath0 doesn't work after a suspend/resume cycle] and have an
observation that might be a clue.

I've been running /etc/rc.d/netif restart ath0 to get the interface
working again.

I've discovered that if I suspend/resume, then run an

  ifconfig ath0 scan

as root the already-running wpa_suplicant wakes up.

Using wpa_supplicant w/ -d flags and watching ktrace/kdump -l output,
it looks like when the machine resumes wpa_supplicant starts a scan
but it blocks.  Running a scan elsewhere seems to break it loose.

Does anything in that observation give you a clue as to where I might
look next?

Thanks,

g.




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