Re: ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x00008040
From: Felix Fietkau <hidden>
Date: 2012-04-06 16:56:23
Also in:
linux-wireless, lkml
On 2012-04-06 6:40 PM, Justin P. Mattock wrote:
quoted hunk ↗ jump to hunk
On 03/26/2012 07:17 PM, Sujith Manoharan wrote:quoted
Justin P. Mattock wrote:quoted
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. SujithFrom 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" <redacted> Date: Sun, 25 Mar 2012 21:53:31 -0700 Subject: [PATCH] ath_test Signed-off-by: Justin P. Mattock <redacted> --- drivers/net/wireless/ath/ath9k/recv.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-)diff --git a/drivers/net/wireless/ath/ath9k/recv.cb/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)) {
That patch is completely messed up - before showing the warning, it checks if ah_flags is set to 0, which will never happen with most devices. You're simply making the warning impossible to trigger. - Felix