Thanks for the quick turnaround. I've been testing it for 6+ hrs now with no issue. On Mon, Jan 14, 2013 at 10:56 AM, Felix Fietkau <nbd@xxxxxxxxxxx> wrote: > Fixes a reported CPU soft lockup where the tasklet tries to acquire the > lock and blocks while ath_prepare_reset (holding the lock) waits for it > to complete. > > Cc: stable@xxxxxxxxxxxxxxx > Reported-by: Robert Shade <robert.shade@xxxxxxxxx> > Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx> > --- > drivers/net/wireless/ath/ath9k/main.c | 7 +++---- > 1 file changed, 3 insertions(+), 4 deletions(-) > > diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c > index 17a5eec..0fb53d6 100644 > --- a/drivers/net/wireless/ath/ath9k/main.c > +++ b/drivers/net/wireless/ath/ath9k/main.c > @@ -196,16 +196,12 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx) > ath9k_debug_samp_bb_mac(sc); > ath9k_hw_disable_interrupts(ah); > > - tasklet_disable(&sc->intr_tq); > - > if (!ath_stoprecv(sc)) > ret = false; > > if (!ath_drain_all_txq(sc, retry_tx)) > ret = false; > > - tasklet_enable(&sc->intr_tq); > - > return ret; > } > > @@ -262,6 +258,7 @@ static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan, > > __ath_cancel_work(sc); > > + tasklet_disable(&sc->intr_tq); > spin_lock_bh(&sc->sc_pcu_lock); > > if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) { > @@ -296,6 +293,8 @@ static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan, > > out: > spin_unlock_bh(&sc->sc_pcu_lock); > + tasklet_enable(&sc->intr_tq); > + > return r; > } > > -- > 1.8.0.2 > -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html