Date: Mon, 9 Jul 2012 02:31:07 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: lev@freebsd.org Cc: wireless@freebsd.org Subject: Re: ath0: device timeout with 802.11n client Message-ID: <CAJ-VmonDzZEBubrbTxMbj32X024orbgbRHFz7FpchrHuJigbkg@mail.gmail.com> In-Reply-To: <1252921508.20120709132351@serebryakov.spb.ru> References: <298155894.20120709002844@serebryakov.spb.ru> <CAJ-VmomWfbTZG1z_iEDEXWmFTWSSfDpPJZ0iFFHOio8eGwuUhg@mail.gmail.com> <1491344515.20120709013411@serebryakov.spb.ru> <CAJ-VmokFcHSx9bQtRMFFx5EGXE=P2Zj-omZ266nNfTVd-DELWw@mail.gmail.com> <1252921508.20120709132351@serebryakov.spb.ru>
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Hm, are you running the latest -HEAD? I'm sure I found/fixed the bug where BAR handling wasn't being refcounted correctly in some corner conditions, leading to a queue that stayed stuck/paused. Adrian On 9 July 2012 02:23, Lev Serebryakov <lev@freebsd.org> wrote: > Hello, Adrian. > You wrote 9 июля 2012 г., 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 stall. > I see. > > Latest messages about ath0: > > Jul 9 01:51:44 gateway kernel: ath0: ath_tx_tid_bar_unsuspend: bar_tx=0, bar_wait=0: ? > 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=0xc3514fe0: addbaw=0, dobaw=0, seqno=1607, retry=0 > Jul 9 04:30:54 gateway kernel: ath0: ath_tx_tid_drain: node 0xc4efb000: bf=0xc3514fe0: tid txq_depth=330 hwq_depth=0, bar_wait=0 > Jul 9 04:30:54 gateway kernel: ath0: ath_tx_tid_drain: node 0xc4efb000: tid 0: txq_depth=1, txq_aggr_depth=0, sched=0, paused=-1, hwq_depth=0, incomp=0, baw_head=98, baw_tail=98 txa_start=1607, ni_txseqs=1937 > > -- > // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org> >
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