Hi, I have D-LINK DWA-547 PCI card on my Gentoo based PC. I'm using kernel 2.31.r8 with the latest drivers from the linux wireless site. I have the following error from the kernel : Nov 30 22:27:04 plamenvasilev kernel: [ 493.171844] ------------[ cut here ]------------ Nov 30 22:27:04 plamenvasilev kernel: [ 493.171952] WARNING: at /root/compat-wireless-2.6.31-rc7/net/mac80211/tx.c:1251 ieee80211_tx+0x5b/0x1ae [mac80211]() Nov 30 22:27:04 plamenvasilev kernel: [ 493.171960] Hardware name: Deskpro Nov 30 22:27:04 plamenvasilev kernel: [ 493.171965] Modules linked in: xt_state xt_TCPMSS xt_comment iptable_raw pppoe pppox ath9k mac80211 ath cfg80211 Nov 30 22:27:04 plamenvasilev kernel: [ 493.171991] Pid: 0, comm: swapper Not tainted 2.6.31-gentoo-r6 #11 Nov 30 22:27:04 plamenvasilev kernel: [ 493.171997] Call Trace: Nov 30 22:27:04 plamenvasilev kernel: [ 493.172026] [<c102f339>] warn_slowpath_common+0x60/0x90 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172036] [<c102f376>] warn_slowpath_null+0xd/0x10 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172069] [<e0840765>] ieee80211_tx+0x5b/0x1ae [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172089] [<c13c815b>] ? skb_release_data+0x8e/0x92 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172122] [<e0840c3c>] ? ieee80211_skb_resize+0x72/0xa6 [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172155] [<e08416a6>] ieee80211_master_start_xmit+0x334/0x362 [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172172] [<c13cf0c2>] dev_hard_start_xmit+0x20e/0x2a1 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172196] [<c13de226>] __qdisc_run+0xbf/0x19d Nov 30 22:27:04 plamenvasilev kernel: [ 493.172205] [<c13cf496>] dev_queue_xmit+0x25b/0x350 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172237] [<e0841359>] ieee80211_subif_start_xmit+0x6e9/0x702 [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172270] [<e083f402>] ? __ieee80211_tx_prepare+0x2d4/0x311 [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172292] [<c13c0000>] ? pci_fixup_nforce2+0x14/0x6f Nov 30 22:27:04 plamenvasilev kernel: [ 493.172313] [<c1466dac>] ? packet_rcv_spkt+0xb9/0xc1 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172322] [<c13cf0c2>] dev_hard_start_xmit+0x20e/0x2a1 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172331] [<c13c71be>] ? skb_copy_bits+0x4b/0x18b Nov 30 22:27:04 plamenvasilev kernel: [ 493.172341] [<c13de226>] __qdisc_run+0xbf/0x19d Nov 30 22:27:04 plamenvasilev kernel: [ 493.172350] [<c13cf496>] dev_queue_xmit+0x25b/0x350 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172382] [<e083c849>] ieee80211_deliver_skb+0xf9/0x101 [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172414] [<e083dcac>] ieee80211_invoke_rx_handlers+0x145b/0x1b9e [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172425] [<c13de24a>] ? __qdisc_run+0xe3/0x19d Nov 30 22:27:04 plamenvasilev kernel: [ 493.172457] [<e0841359>] ? ieee80211_subif_start_xmit+0x6e9/0x702 [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172492] [<e083e83c>] __ieee80211_rx_handle_packet+0x44d/0x45f [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172526] [<e083ef83>] __ieee80211_rx+0x4b9/0x50a [mac80211] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172544] [<c149fdc3>] ? _spin_unlock_bh+0xd/0xf Nov 30 22:27:04 plamenvasilev kernel: [ 493.172613] [<e08a0b05>] ath_rx_send_to_mac80211+0x6b/0x72 [ath9k] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172640] [<e08a11b6>] ath_rx_tasklet+0x628/0x670 [ath9k] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172656] [<c104a6c0>] ? clockevents_program_event+0xd4/0xe3 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172668] [<c104b52e>] ? tick_dev_program_event+0x28/0x95 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172677] [<c1049040>] ? clocksource_get_next+0x3c/0x43 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172703] [<e089f9b8>] ath9k_tasklet+0x44/0x91 [ath9k] Nov 30 22:27:04 plamenvasilev kernel: [ 493.172713] [<c10331b9>] tasklet_action+0x62/0x9f Nov 30 22:27:04 plamenvasilev kernel: [ 493.172725] [<c1033f0e>] __do_softirq+0xa7/0x144 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172734] [<c1033fd1>] do_softirq+0x26/0x2b Nov 30 22:27:04 plamenvasilev kernel: [ 493.172742] [<c10340b6>] irq_exit+0x29/0x5c Nov 30 22:27:04 plamenvasilev kernel: [ 493.172756] [<c1003f6f>] do_IRQ+0x80/0x96 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172766] [<c10030a9>] common_interrupt+0x29/0x30 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172766] [<c1008065>] ? default_idle+0x42/0x5f Nov 30 22:27:04 plamenvasilev kernel: [ 493.172766] [<c1001d4c>] cpu_idle+0x44/0x60 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172766] [<c1483f97>] rest_init+0x53/0x55 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172766] [<c17407d7>] start_kernel+0x2b1/0x2b6 Nov 30 22:27:04 plamenvasilev kernel: [ 493.172766] [<c174006a>] i386_start_kernel+0x6a/0x6f Nov 30 22:27:04 plamenvasilev kernel: [ 493.172766] ---[ end trace a8b664535fdf6c28 ]--- After some time of using the wireless i get the following : Nov 30 22:33:47 plamenvasilev hostapd: wlan0: STA 00:1f:df:0e:dd:eb MLME: MLME-AUTHENTICATE.indication(00:1f:df:0e:dd:eb, OPEN_SYSTEM) Nov 30 22:33:47 plamenvasilev hostapd: wlan0: STA 00:1f:df:0e:dd:eb MLME: MLME-DELETEKEYS.request(00:1f:df:0e:dd:eb) Nov 30 22:33:47 plamenvasilev hostapd: wlan0: STA 00:1f:df:0e:dd:eb IEEE 802.11: authentication OK (open system) Nov 30 22:33:47 plamenvasilev hostapd: wlan0: STA 00:1f:df:0e:dd:eb MLME: MLME-AUTHENTICATE.indication(00:1f:df:0e:dd:eb, OPEN_SYSTEM) Nov 30 22:33:47 plamenvasilev hostapd: wlan0: STA 00:1f:df:0e:dd:eb MLME: MLME-DELETEKEYS.request(00:1f:df:0e:dd:eb) Nov 30 22:33:47 plamenvasilev hostapd: wlan0: STA 00:1f:df:0e:dd:eb IEEE 802.11: authenticated Nov 30 22:33:47 plamenvasilev hostapd: wlan0: STA 00:1f:df:0e:dd:eb IEEE 802.11: authenticated Nov 30 22:36:14 plamenvasilev hostapd: wlan0: WPA rekeying GTK Nov 30 22:36:14 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 WPA: sending 1/2 msg of Group Key Handshake Nov 30 22:36:14 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 WPA: received EAPOL-Key frame (2/2 Group) Nov 30 22:36:14 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 WPA: group key handshake completed (RSN) Nov 30 22:36:48 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 WPA: event 2 notification Nov 30 22:36:48 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 IEEE 802.1X: unauthorizing port Nov 30 22:36:48 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 IEEE 802.11: disassociated Nov 30 22:36:48 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 MLME: MLME-DISASSOCIATE.indication(00:1e:52:83:3f:f2, 8) Nov 30 22:36:48 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 MLME: MLME-DELETEKEYS.request(00:1e:52:83:3f:f2) Nov 30 22:36:49 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 IEEE 802.11: deauthenticated due to inactivity Nov 30 22:36:49 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 MLME: MLME-DEAUTHENTICATE.indication(00:1e:52:83:3f:f2, 2) Nov 30 22:36:49 plamenvasilev hostapd: wlan0: STA 00:1e:52:83:3f:f2 MLME: MLME-DELETEKEYS.request(00:1e:52:83:3f:f2) After that i have to restart hostapd service because i cannot connect any more. 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