Messages in this thread Patch in this message | | | Date | Fri, 06 Apr 2012 09:40:20 -0700 | From | "Justin P. Mattock" <> | Subject | Re: ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x00008040 |
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On 03/26/2012 07:17 PM, Sujith Manoharan wrote: > Justin P. Mattock wrote: >> I would have to say this patch above does get rid of this crash I was >> seeing. as a quick test I simply connect to a WPA network, then connect >> to an open network going back and forth triggers this freeze for me >> after applying this I am able to toggle back and forth without a freeze. > > Thanks for verifying. > > Sujith >
From going through the warning message I was playing around and am looking at: AH_UNPLUGGED .. seems if I remove this from the code I have not seen this warning message. is there something wrong with AH_UNPLUGGED = 0x2 ? is this the wrong address(0x2)?
the patch that I was using is:
From ea8a7d6ecf8b0706f3f0521cd22cc359b20b9373 Mon Sep 17 00:00:00 2001 From: "Justin P. Mattock" <justinmattock@gmail.com> Date: Sun, 25 Mar 2012 21:53:31 -0700 Subject: [PATCH] ath_test
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
--- drivers/net/wireless/ath/ath9k/recv.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index f4ae3ba..d887cee 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -523,8 +523,7 @@ bool ath_stoprecv(struct ath_softc *sc) sc->rx.rxlink = NULL; spin_unlock_bh(&sc->rx.rxbuflock);
- if (!(ah->ah_flags & AH_UNPLUGGED) && - unlikely(!stopped)) { + if (!(ah->ah_flags) && unlikely(!stopped)) { ath_err(ath9k_hw_common(sc->sc_ah), "Could not stop RX, we could be " "confusing the DMA engine when we start RX up\n"); -- 1.7.5.4
let me know what you think!
Justin P. Mattock
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