2 VAP ath9k system hits warning in agg-tx.c

This is with a hacked kernel, but no significant hacks to ath9k. The ath9k _is_ running with regdomain == 0x0 (instead of the 0x6a world-domain in it's eeprom). NIC is Sparklan 127N (AR9830 chipset).

Kernel is 2.6.39-wl+.

The code that is complaining is:

	if (WARN_ON(!tid_tx)) {
#ifdef CONFIG_MAC80211_HT_DEBUG
		printk(KERN_DEBUG "addBA was not requested!\n");
#endif
		goto unlock;
	}

We were associating 128 stations using another AR9380 system as virtual STA interfaces. Aside from scary messages, the system seems fine, and it quit spewing these messages a short time after bringup.

WARNING: at /home/greearb/git/linux.wireless-testing-ct/net/mac80211/agg-tx.c:559

ieee80211_start_tx_ba_cb+0x7c/0xa5 [mac80211]()
Hardware name: To Be Filled By O.E.M.
Modules linked in: cryptd aes_i586 aes_generic xt_CT iptable_raw xt_DSCP

xt_dscp xt_string xt_owner xt_NFQUEUE xt_multiport xt_mark xt_iprange xt_hashlimit xt_connmark xt_addrtype xt_TPROXY nf_tproxy_core xt_socket ip6_tables nf_defrag_ipv6 xt_set ip_set nfnetlink xt_connlimit veth 8021q garp stp llc fuse macvlan wanlink(P) pktgen coretemp hwmon nfs lockd fscache auth_rpcgss nfs_acl sunrpc ipv6 uinput arc4 snd_hda_codec_realtek ath9k snd_hda_intel mac80211 snd_hda_codec snd_hwdep snd_seq snd_seq_device ath9k_common snd_pcm ath9k_hw snd_timer ath cfg80211 snd r8169 iTCO_wdt soundcore iTCO_vendor_support microcode i2c_i801 snd_page_alloc pcspkr mii serio_raw i915 drm_kms_helper drm i2c_algo_bit video [last unloaded:
xt_connmark]
Pid: 38, comm: kworker/u:2 Tainted: P W 2.6.39-wl+ #26

Call Trace:
 [<c0430a17>] warn_slowpath_common+0x65/0x7a
 [<f8d84b2e>] ? ieee80211_start_tx_ba_cb+0x7c/0xa5 [mac80211]
 [<c0430a3b>] warn_slowpath_null+0xf/0x13
 [<f8d84b2e>] ieee80211_start_tx_ba_cb+0x7c/0xa5 [mac80211]
 [<f8d8c598>] ieee80211_iface_work+0x99/0x258 [mac80211]
 [<c043f85c>] process_one_work+0x16a/0x219
 [<f8d8c4ff>] ? ieee80211_teardown_sdata+0xaf/0xaf [mac80211]
 [<c044124a>] worker_thread+0xf7/0x1fe
 [<c0425ccc>] ? complete+0x34/0x3e
 [<c0441153>] ? manage_workers+0x164/0x164
 [<c0443c85>] kthread+0x62/0x67
 [<c0443c23>] ? __init_kthread_worker+0x28/0x28
 [<c07856f6>] kernel_thread_helper+0x6/0xd
---[ end trace 5212779ba7fc27a4 ]---

Thanks,
Ben

Ben Greear <[email protected]>
Candela Technologies Inc  http://www.candelatech.com