* compat-wireless-2009-08-13 ath9k timeouts
@ 2009-08-14 3:03 Howard Chu
2009-08-14 11:43 ` Howard Chu
0 siblings, 1 reply; 2+ messages in thread
From: Howard Chu @ 2009-08-14 3:03 UTC (permalink / raw)
To: linux-wireless
I just built this on my 2.6.31-rc5 kernel. Using the driver results in a flood of
[ 78.598403] ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
[ 78.599508] ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
[ 78.600500] ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
[ 78.600833] ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
[ 78.600833] ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
[ 78.600833] ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
[ 78.601378] ath9k: AR_INTR_SYNC_LOCAL_TIMEOUT
in dmesg, and throughput is extremely slow. Surprising that there are multiple
messages in a single time tick.
I also tried with the ath9k driver from wireless-testing, as of commit
3fbf09eb3916 and got the same result.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: compat-wireless-2009-08-13 ath9k timeouts
2009-08-14 3:03 compat-wireless-2009-08-13 ath9k timeouts Howard Chu
@ 2009-08-14 11:43 ` Howard Chu
0 siblings, 0 replies; 2+ messages in thread
From: Howard Chu @ 2009-08-14 11:43 UTC (permalink / raw)
To: linux-wireless
After reading this hint
> From: Sujith <Sujith.Manoharan@...>
> Subject: Re: Revert commit in ath9k
> Date: 2009-08-14 06:17:42 GMT (5 hours and 20 minutes ago)
>
> Pavel Roskin wrote:
>> Quoting Sujith <Sujith.Manoharan@...>:
>>
>> > John,
>> >
>> > Can you revert the commit - "ath9k: Change DEBUG level for certain
>> > interrupts" ?
>> > This interrupt seems to trigger fairly often and floods the log.
I reverted that commit in my build, and things were a bit more usable. But now
I'm seeing this momentary pauses, and this in dmesg:
[22479.126146] wlan0: associated
[22734.695276] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024
AR_DIAG_SW=0x40000020
[22978.405252] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024
AR_DIAG_SW=0x42000020
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
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