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Date: Mon, 9 Jul 2012 13:23:51 +0400
From: Lev Serebryakov <lev@FreeBSD.org>
Organization: FreeBSD Project
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To: Adrian Chadd <adrian.chadd@gmail.com>
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Cc: wireless@freebsd.org
Subject: Re: ath0: device timeout with 802.11n client
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Hello, Adrian.
You wrote 9 =D0=B8=D1=8E=D0=BB=D1=8F 2012 =D0=B3., 4:06:52:

AC> ALQ is the queue used by KTR and others to log data.
AC> Look at ieee80211_alq.c and see.
AC> We just need to craft some probes in the ath TX path to log frames and
AC> completion. Then we can try to figure out whats causing your TX to stal=
l.
 I see.

Latest messages about ath0:

Jul  9 01:51:44 gateway kernel: ath0: ath_tx_tid_bar_unsuspend: bar_tx=3D0,=
 bar_wait=3D0: ?
Jul  9 01:54:35 gateway kernel: ath0: device timeout
Jul  9 01:55:07 gateway kernel: ath0: device timeout
Jul  9 01:55:22 gateway kernel: ath0: device timeout
Jul  9 02:09:58 gateway kernel: ath0: device timeout
Jul  9 04:30:54 gateway kernel: ath0: ath_tx_tid_drain: node 0xc4efb000: bf=
=3D0xc3514fe0: addbaw=3D0, dobaw=3D0, seqno=3D1607, retry=3D0
Jul  9 04:30:54 gateway kernel: ath0: ath_tx_tid_drain: node 0xc4efb000: bf=
=3D0xc3514fe0: tid txq_depth=3D330 hwq_depth=3D0, bar_wait=3D0
Jul  9 04:30:54 gateway kernel: ath0: ath_tx_tid_drain: node 0xc4efb000: ti=
d 0: txq_depth=3D1, txq_aggr_depth=3D0, sched=3D0, paused=3D-1, hwq_depth=
=3D0, incomp=3D0, baw_head=3D98, baw_tail=3D98 txa_start=3D1607, ni_txseqs=
=3D1937

--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>