Maya Erez <qca_merez@xxxxxxxxxxxxxxxx> writes: > From: Vladimir Kondratiev <qca_vkondrat@xxxxxxxxxxxxxxxx> > > To prevent race when connect flow may run in parallel with > the disconnect event. > > Scenario leading to the bug is: while running connect flow on the AP, > STA sends disconnect. log follows. > > <7>[ 668.736269] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Configure for connection CID 1 > <7>[ 668.736269] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_vring_init_tx() max_mpdu_size 2048 > <7>[ 668.736301] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_vring_alloc() > <7>[ 668.736363] wil6210 0000:01:00.0: wlan0: DBG[MISC]vring[1024] 0xffbe8000:d962ce08 0xdb244000 > <7>[ 668.736394] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Head 0x00880300 -> 0x00880308 > <7>[ 668.736394] wil6210 0000:01:00.0: wlan0: DBG[ WMI]WMI command 0x0821 [28] > <7>[ 668.736426] DBG[ WMI]Cmd 00000000: 20 00 24 00 00 00 00 00 00 00 21 08 00 00 00 00 .$.......!..... > <7>[ 668.736426] DBG[ WMI]cmd 00000000: 00 00 00 00 00 00 5f 5c 00 00 00 00 00 04 00 08 ......_\........ > <7>[ 668.736457] DBG[ WMI]cmd 00000010: 01 01 00 00 00 00 00 00 00 00 ff 0f ............ > <7>[ 668.736488] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]Pseudo IRQ 0x00000004 > <7>[ 668.736519] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Handle WMI 0x1824 (reply_id 0x1821) > <7>[ 668.736519] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]wil6210_mask_irq_pseudo() > <7>[ 668.736519] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]ISR MISC 0x20000000 > <7>[ 668.736551] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Handle WMI 0x1003 (reply_id 0x1821) > <7>[ 668.736551] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Disconnect 04:ce:14:00:07:70 reason [proto 3 wmi 4] > <7>[ 668.736582] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil6210_disconnect() > <7>[ 668.736613] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]Thread IRQ > <7>[ 668.736613] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]Thread ISR MISC 0x20000000 > <7>[ 668.736644] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]MBOX event > <7>[ 668.736644] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Mbox head 00880330 tail 00880328 > <7>[ 668.736676] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Mbox evt 001a 0010 0000 00 > <7>[ 668.736676] wil6210 0000:01:00.0: wlan0: DBG[ WMI]WMI event 0x1821 MID 0 @3255145 msec > <7>[ 668.736707] DBG[ WMI]evt 00000000: 1a 00 10 00 00 00 00 10 00 00 21 18 69 ab 31 00 ..........!.i.1. > <7>[ 668.736707] DBG[ WMI]evt 00000010: 01 01 00 00 00 00 00 00 ........ > <7>[ 668.736738] wil6210 0000:01:00.0: wlan0: DBG[ WMI]queue_work -> 0 > <7>[ 668.736738] wil6210 0000:01:00.0: wlan0: DBG[ WMI]wmi_recv_cmd -> 1 events queued > <7>[ 668.736769] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]wil6210_unmask_irq_pseudo() > <7>[ 668.736832] wil6210 0000:01:00.0: wlan0: DBG[MISC]Disconnect 04:ce:14:00:07:70, CID=1, reason=3 > <7>[ 668.736832] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_disconnect_cid(CID 1, status 1) > <7>[ 668.736894] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_vring_fini_tx() id=1 > <7>[ 668.736894] wil6210 0000:01:00.0: wlan0: DBG[MISC]free Tx vring 1 [1024] 0xffbe8000:d962ce08 0xdb244000 > <7>[ 668.736957] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Handle WMI 0x1821 (reply_id 0x1821) > <7>[ 668.736988] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Complete WMI 0x1821 > <7>[ 668.737019] wil6210 0000:01:00.0: wlan0: DBG[ WMI]wmi_call(0x0821->0x1821) completed in 0 msec > <3>[ 668.737019] wil6210 0000:01:00.0: wlan0: Tx config failed, status 0x01 > <7>[ 668.739518] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_cfg80211_del_station(04:ce:14:00:07:70, reason=2) > <7>[ 668.739550] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil6210_disconnect() > <7>[ 668.739550] wil6210 0000:01:00.0: wlan0: DBG[MISC]_wil6210_disconnect(bssid=04:ce:14:00:07:70, reason=2, ev-) > <7>[ 668.739581] wil6210 0000:01:00.0: wlan0: DBG[MISC]Disconnect 04:ce:14:00:07:70, CID=-2, reason=2 > <7>[ 668.742705] wil6210 0000:01:00.0: wlan0: DBG[MISC]free Tx vring 1 [1024] 0x (null):d962ce08 0x (null) > <3>[ 668.742736] __dma_free_remap: trying to free invalid coherent area: (null) > > Signed-off-by: Vladimir Kondratiev <qca_vkondrat@xxxxxxxxxxxxxxxx> > Signed-off-by: Maya Erez <qca_merez@xxxxxxxxxxxxxxxx> Applied to ath.git, thanks. -- Kalle Valo -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
