Justin P. Mattock wrote:

quoted

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)

Can you try this patch ?

From: Sujith Manoharan<redacted>
Date: Tue, 20 Mar 2012 13:51:26 +0530
Subject: [PATCH] ath9k: Use HW HT capabilites properly

The commit "ath9k: Remove aggregation flags" changed how
nodes were being initialized. Use the HW HT cap bits
to initialize/de-initialize nodes, else we would be
accessing an uninitialized entry during a suspend/resume cycle,
resulting in a panic.

Reported-by: Justin P. Mattock<redacted>
Signed-off-by: Sujith Manoharan<redacted>
---
  drivers/net/wireless/ath/ath9k/main.c |    4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 3879485..215eb25 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c

@@ -640,7 +640,7 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
  	an->sta = sta;
  	an->vif = vif;

-	if (sta->ht_cap.ht_supported) {
+	if (sc->sc_ah->caps.hw_caps&  ATH9K_HW_CAP_HT) {
  		ath_tx_node_init(sc, an);
  		an->maxampdu = 1<<  (IEEE80211_HT_MAX_AMPDU_FACTOR +
  				     sta->ht_cap.ampdu_factor);

@@ -659,7 +659,7 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
  	an->sta = NULL;
  #endif

-	if (sta->ht_cap.ht_supported)
+	if (sc->sc_ah->caps.hw_caps&  ATH9K_HW_CAP_HT)
  		ath_tx_node_cleanup(sc, an);
  }