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Message-ID: <4F682555.3020502@gmail.com> Date: Mon, 19 Mar 2012 23:36:05 -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 11:32 PM, Mohammed Shafi wrote: > On Tue, Mar 20, 2012 at 11:57 AM, Justin P. Mattock > <justinmattock@...il.com> wrote: >> 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. > > sorry its > l *(ath_tx_start+0x284) > >> (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 > > > yeah this works: eading symbols from /home/kernel/linux-next/drivers/net/wireless/ath/ath9k/ath9k.o...done. (gdb) l *(ath_tx_start+0x284) 0xcad4 is in ath_tx_start (drivers/net/wireless/ath/ath9k/xmit.c:1878). 1873 ieee80211_is_data_qos(hdr->frame_control)) { 1874 tidno = ieee80211_get_qos_ctl(hdr)[0] & 1875 IEEE80211_QOS_CTL_TID_MASK; 1876 tid = ATH_AN_2_TID(txctl->an, tidno); 1877 1878 WARN_ON(tid->ac->txq != txctl->txq); 1879 } 1880 1881 if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && tid) { 1882 /* (gdb) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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