2013/6/26 Larry Finger <Larry.Finger@xxxxxxxxxxxx>: > On 06/26/2013 09:22 AM, Richard GENOUD wrote: >> >> Using 3.10-rc7, I'm still seeing the warning, BUT ONLY on the first >> connection. >> >> [ 40.312500] usb 2-2: default language 0x0409 >> [ 40.312500] usb 2-2: udev 2, busnum 2, minor = 129 >> [ 40.320312] usb 2-2: New USB device found, idVendor=0bda, >> idProduct=8176 >> [ 40.328125] usb 2-2: New USB device strings: Mfr=1, Product=2, >> SerialNumber=3 >> [ 40.328125] usb 2-2: Product: 802.11n WLAN Adapter >> [ 40.335937] usb 2-2: Manufacturer: Realtek >> [ 40.343750] usb 2-2: SerialNumber: 00e04c000001 >> [ 40.343750] usb 2-2: usb_probe_device >> [ 40.351562] usb 2-2: configuration #1 chosen from 1 choice >> [ 40.351562] usb 2-2: adding 2-2:1.0 (config #1, interface 0) >> [ 40.500000] cfg80211: Calling CRDA to update world regulatory domain >> [ 40.648437] rtl8192cu 2-2:1.0: usb_probe_interface >> [ 40.656250] rtl8192cu 2-2:1.0: usb_probe_interface - got id >> [ 40.664062] rtl8192cu: Chip version 0x10 >> [ 40.757812] rtl8192cu: MAC address: a0:f3:c1:1e:02:a0 >> [ 40.765625] rtl8192cu: Board Type 0 >> [ 40.773437] rtlwifi: rx_max_size 15360, rx_urb_num 8, in_ep 1 >> [ 40.773437] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw.bin >> [ 40.781250] usbcore: registered new interface driver rtl8192cu >> [ 40.835937] ieee80211 phy0: Selected rate control algorithm 'rtl_rc' >> [ 40.843750] rtlwifi: wireless switch is on >> # ip link set wlan0 up >> [ 59.921875] rtl8192cu: MAC auto ON okay! >> [ 59.960937] rtl8192cu: Tx queue select: 0x05 >> # iw wlan0 connect test >> [ 75.390625] wlan0: authenticate with f8:1a:67:1a:df:88 >> [ 75.421875] wlan0: send auth to f8:1a:67:1a:df:88 (try 1/3) >> [ 75.437500] wlan0: authenticated >> [ 75.453125] wlan0: associate with f8:1a:67:1a:df:88 (try 1/3) >> [ 75.460937] wlan0: RX AssocResp from f8:1a:67:1a:df:88 (capab=0x401 >> status=0 aid=2) >> [ 75.468750] wlan0: associated >> [ 76.375000] ------------[ cut here ]------------ >> [ 76.375000] WARNING: at kernel/workqueue.c:1365 >> __queue_work+0x168/0x200() >> [ 76.375000] Modules linked in: rtl8192cu rtl8192c_common rtlwifi >> mac80211 cfg80211 rfkill ehci_atmel ehci_hcd atmel_usba_udc udc_core >> ohci_hcd >> [ 76.375000] CPU: 0 PID: 308 Comm: kworker/0:1 Not tainted 3.10.0-rc7 >> #36 >> [ 76.375000] Workqueue: rtl92c_usb rtl_watchdog_wq_callback [rtlwifi] >> [ 76.375000] [<c000d9bc>] (unwind_backtrace+0x0/0xf0) from [<c000b9ec>] >> (show_stack+0x10/0x14) >> [ 76.375000] [<c000b9ec>] (show_stack+0x10/0x14) from [<c0015c00>] >> (warn_slowpath_common+0x4c/0x68) >> [ 76.375000] [<c0015c00>] (warn_slowpath_common+0x4c/0x68) from >> [<c0015c38>] (warn_slowpath_null+0x1c/0x24) >> [ 76.375000] [<c0015c38>] (warn_slowpath_null+0x1c/0x24) from >> [<c0029e40>] (__queue_work+0x168/0x200) >> [ 76.375000] [<c0029e40>] (__queue_work+0x168/0x200) from [<c0029f2c>] >> (queue_work_on+0x44/0x50) >> [ 76.375000] [<c0029f2c>] (queue_work_on+0x44/0x50) from [<bf09bb54>] >> (rtl_watchdog_wq_callback+0x320/0x404 [rtlwifi]) >> [ 76.375000] [<bf09bb54>] (rtl_watchdog_wq_callback+0x320/0x404 >> [rtlwifi]) from [<c002b168>] (process_one_work+0x10c/0x354) >> [ 76.375000] [<c002b168>] (process_one_work+0x10c/0x354) from >> [<c002b784>] (worker_thread+0x130/0x380) >> [ 76.375000] [<c002b784>] (worker_thread+0x130/0x380) from [<c0030330>] >> (kthread+0xa4/0xb0) >> [ 76.375000] [<c0030330>] (kthread+0xa4/0xb0) from [<c00092f0>] >> (ret_from_fork+0x14/0x24) >> [ 76.375000] ---[ end trace e116b4b3d671f3d2 ]--- > > > The WARNING is the result of a workqueue not being initialized for the USB > driver. > > Please try the attached patch. As you have posted on a public mailing list, > May I assume that it will be OK to use your address in Reported-by/Tested-by > lines in the patch submission? > > Thanks, > > Larry > Yes, of course, you can add my Reported-by: Richard Genoud <richard.genoud@xxxxxxxxx> But the patch doesn't compile on my platform ( since I'm on ARM, I haven't got a PCI bus, so rtlwifi/pci.c is not compiled ) : ERROR: "rtl_lps_change_work_callback" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined! Best regards, Richard. PS: duckducking the warning, I found this automated report also : https://retrace.fedoraproject.org/faf/reports/142038/ -- for me, ck means con kolivas and not calvin klein... does it mean I'm a geek ? -- 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
