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Date:      Tue, 22 Nov 2011 05:47:45 +0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        Warren Block <wblock@wonkity.com>
Cc:        Alexander Best <arundel@freebsd.org>, freebsd-wireless@freebsd.org
Subject:   Re: issues with the recent ath commits (r227740, r227651, ...)
Message-ID:  <CAJ-VmomO-7-TsT1b_=2FBu5rnYf7Z5UhQyuRF95iupiL2xGTnA@mail.gmail.com>
In-Reply-To: <alpine.BSF.2.00.1111211433100.33629@wonkity.com>
References:  <20111121131730.GA3599@freebsd.org> <alpine.BSF.2.00.1111210719430.30516@wonkity.com> <20111121152054.GA22220@freebsd.org> <CAJ-VmomzY6Arh_=nPihdH=RhNyQXV7jgdvV7oyGKfqzb1BQ6sw@mail.gmail.com> <alpine.BSF.2.00.1111211433100.33629@wonkity.com>
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Hi,

Please try this patch:


commit 3993972ed7407867dce188903f68a0751c487fbb
Author: Adrian Chadd <adrian@freebsd.org>
Date:   Tue Nov 22 05:28:16 2011 +0800

    Sleep on the correct lock.

diff --git a/sys/dev/ath/if_ath.c b/sys/dev/ath/if_ath.c
index 83c5ede..84cb91b 100644
--- a/sys/dev/ath/if_ath.c
+++ b/sys/dev/ath/if_ath.c
@@ -1878,9 +1878,9 @@ ath_txrx_stop(struct ath_softc *sc)
         */
        while (sc->sc_rxproc_cnt || sc->sc_txproc_cnt ||
            sc->sc_txstart_cnt || sc->sc_intr_cnt) {
-               if (i <= 0)
+               if (i <= 0)
                        break;
-               msleep(sc, &sc->sc_mtx, 0, "ath_txrx_stop", 1);
+               msleep(sc, &sc->sc_pcu_mtx, 0, "ath_txrx_stop", 1);
                i--;
        }
        ATH_PCU_UNLOCK(sc);
help

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