linux-kernel - Re: ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG

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Message-ID: <4F68235C.5090701@gmail.com>
Date:	Mon, 19 Mar 2012 23:27:40 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	Mohammed Shafi <shafi.wireless@...il.com>
CC:	Linux-wireless <linux-wireless@...r.kernel.org>,
	Felix Fietkau <nbd@...nwrt.org>, linux-kernel@...r.kernel.org,
	Linux-netdev <netdev@...r.kernel.org>
Subject: Re: ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020
 DMADBG_7=0x00008040

On 03/19/2012 11:19 PM, Mohammed Shafi wrote:
>> (gdb) list *ath9k_tx+start+0x284
>> No symbol "start" in current context.
>
> hey, pls try l *(ath9k_tx_start+0x284), yesterday i did the same in
> the latest wireless testing tree it pointed to line 1929 of xmit.c
>
> sc->tx.seq_no +=0x10;
>
> also did few suspend/resume in my machine, nothing interesting happened
>
>>
>> before receiving the email to do the above code with gdb I had cleaned the
>> tree out with git clean -fx so rebuilding might have misalighned things(but
>> could be wrong)..
>>
>
>
>


seems gdb is not working with that code but works if I remove _start.
(maybe -next took this out or something)

(gdb) l *(ath9k_tx_start+0x284)
No symbol "ath9k_tx_start" in current context.
(gdb) l *(ath9k_tx+0x284)
0x4854 is in ath_paprd_activate (drivers/net/wireless/ath/ath9k/main.c:395).
390				continue;
391	
392			ar9003_paprd_populate_single_table(ah, caldata, chain);
393		}
394	
395		ar9003_paprd_enable(ah, true);
396		ath9k_ps_restore(sc);
397	}
398	
399	static bool ath_paprd_send_frame(struct ath_softc *sc, struct 
sk_buff *skb, int chain)

right now I am running next, will wait for the RX DMA to get a clean 
trace, then will look to see.. as for the other issue I just rebooted 
and hit this during bootup.

Justin P. Mattock
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