Re: ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020DMADBG_7=0x00008040

From: Justin P. Mattock
Date: Tue Mar 20 2012 - 02:27:50 EST


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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/