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Re: [ath9k-devel] hostapd not sending beacons, and no traffic.

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Karl Hiramoto wrote:
more info on this enabling debug in ath9k

ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT ath9k: receive FIFO overrun interrupt ath9k: 0xf0010071 => 0x10000 ath9k: disable IER ath9k: new IMR 0x10000 ath9k: 0x10000 => 0xf0010071
ath9k: new IMR 0x918104b4
ath9k: enable IER
ath9k: AR_IMR 0x918104b4 IER 0x1
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT

Some more info.   If i rate limit the interface, this bug never occurs.
tc qdisc add dev wlan0_0 root handle 1: cbq avpkt 1000 bandwidth 20mbit


If i restart hostapd, the interface comes back OK.. Or anything that calls ath_reset() will make it come back.


Reproducing this downloading a http large file, without QOS it's always reproduceable. Usually It occurs before 2MB is downloaded.

This is on a 266 mhz IXP425.  So maybee some kind of race happening here..

--
Karl
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