This is a report from a user(added to CC): He has two different mac80211-powered USB devices: one which has an ISL3887 (supported by p54usb), the other is an AR9170 (carl9170). "I found another problem---the driver use the phy index from 0, which will conflict with p54usb driver(i have two wifi card,another one use p54usb). this will cause boot-period wireless init fail. bellow are some details. [ 5.049234] usbcore: registered new interface driver usbfs [ 5.069937] usbcore: registered new interface driver hub [ 5.093766] usbcore: registered new device driver usb [ 5.163736] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 5.170118] ohci_hcd 0000:00:0a.0: OHCI Host Controller [ 5.190581] ohci_hcd 0000:00:0a.0: new USB bus registered, assigned bus number 1 [ 5.202619] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 5.233765] ohci_hcd 0000:00:0a.0: irq 7, io mem 0xfeffd000 [ 5.248441] Warning! ehci_hcd should always be loaded before uhci_hcd and ohci_hcd, not after [ 5.328444] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001 [ 5.335301] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 5.342550] usb usb1: Product: OHCI Host Controller [ 5.349599] usb usb1: Manufacturer: Linux 2.6.36-rc6-wl-wlplug20101006 ohci_hcd [ 5.362825] usb usb1: SerialNumber: 0000:00:0a.0 [ 5.369904] hub 1-0:1.0: USB hub found [ 5.373812] hub 1-0:1.0: 2 ports detected [ 5.379112] ehci_hcd 0000:00:0a.1: EHCI Host Controller [ 5.384472] ehci_hcd 0000:00:0a.1: new USB bus registered, assigned bus number 2 [ 5.415841] ehci_hcd 0000:00:0a.1: irq 9, io mem 0xfefff800 [ 5.433679] ehci_hcd 0000:00:0a.1: USB 2.0 started, EHCI 1.00 [ 5.439605] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002 [ 5.446451] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 5.453717] usb usb2: Product: EHCI Host Controller [ 5.458621] usb usb2: Manufacturer: Linux 2.6.36-rc6-wl-wlplug20101006 ehci_hcd [ 5.465974] usb usb2: SerialNumber: 0000:00:0a.1 [ 5.472880] hub 2-0:1.0: USB hub found [ 5.476790] hub 2-0:1.0: 2 ports detected [ 5.482134] ohci_hcd 0000:00:0b.0: OHCI Host Controller [ 5.487507] ohci_hcd 0000:00:0b.0: new USB bus registered, assigned bus number 3 [ 5.495105] ohci_hcd 0000:00:0b.0: irq 10, io mem 0xfeffe000 [ 5.583815] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001 [ 5.590635] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 5.597906] usb usb3: Product: OHCI Host Controller [ 5.602810] usb usb3: Manufacturer: Linux 2.6.36-rc6-wl-wlplug20101006 ohci_hcd [ 5.610216] usb usb3: SerialNumber: 0000:00:0b.0 [ 5.617114] hub 3-0:1.0: USB hub found [ 5.620920] hub 3-0:1.0: 2 ports detected [ 5.626326] ehci_hcd 0000:00:0b.1: EHCI Host Controller [ 5.631628] ehci_hcd 0000:00:0b.1: new USB bus registered, assigned bus number 4 [ 5.723840] ehci_hcd 0000:00:0b.1: irq 11, io mem 0xfefffc00 [ 5.793740] usb 2-2: new high speed USB device using ehci_hcd and address 2 [ 5.813661] ehci_hcd 0000:00:0b.1: USB 2.0 started, EHCI 1.00 [ 5.819624] usb usb4: New USB device found, idVendor=1d6b, idProduct=0002 [ 5.826550] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 5.833845] usb usb4: Product: EHCI Host Controller [ 5.838765] usb usb4: Manufacturer: Linux 2.6.36-rc6-wl-wlplug20101006 ehci_hcd [ 5.846122] usb usb4: SerialNumber: 0000:00:0b.1 [ 5.853073] hub 4-0:1.0: USB hub found [ 5.856972] hub 4-0:1.0: 2 ports detected [ 6.012773] usb 2-2: New USB device found, idVendor=0cf3, idProduct=1002 [ 6.019545] usb 2-2: New USB device strings: Mfr=16, Product=32, SerialNumber=48 [ 6.026993] usb 2-2: Product: USB2.0 WLAN [ 6.031041] usb 2-2: Manufacturer: ATHER [ 6.037793] usb 2-2: SerialNumber: 12345 [ 6.264804] REISERFS (device hda1): found reiserfs format "3.6" with standard journal [ 6.272704] REISERFS (device hda1): using ordered data mode [ 6.285441] REISERFS (device hda1): journal params: device hda1, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 6.311500] REISERFS (device hda1): checking transaction log (hda1) [ 6.343736] usb 4-2: new high speed USB device using ehci_hcd and address 2 [ 6.498133] usb 4-2: New USB device found, idVendor=1435, idProduct=0427 [ 6.505010] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 6.512273] usb 4-2: Product: Cohiba 3887 rev0 [ 6.516876] usb 4-2: Manufacturer: GlobespanVirata [ 6.604230] REISERFS (device hda1): replayed 22 transactions in 0 seconds [ 6.611613] REISERFS (device hda1): Using r5 hash to sort names [ 14.180410] udevd version 125 started [ 17.303283] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 [ 17.394543] rtc0: alarms up to one day, 114 bytes nvram [ 18.090664] cfg80211: Calling CRDA to update world regulatory domain [ 18.944222] usb 2-2: reset high speed USB device using ehci_hcd and address 2 [ 19.141331] usbcore: registered new interface driver carl9170 [ 19.244279] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [ 19.286717] usb 2-2: driver API: 1.8.8.3 2010-09-28 [1-1] [ 19.292335] usb 2-2: firmware API: 1.8.8.3 2010-09-28 [ 19.482896] ieee80211 phy0: p54 detected a LM87 firmware ----------phy0 used by p54usb [ 19.492278] p54: rx_mtu reduced from 3240 to 2384 [ 19.500711] ieee80211 phy0: FW rev 2.13.24.0 - Softmac protocol 5.9 [ 19.507146] ieee80211 phy0: cryptographic accelerator WEP:YES, TKIP:YES, CCMP:YES [ 20.511550] ieee80211 phy0: hwaddr 00:0b:6b:9d:9e:12, MAC:isl3887 RF:Frisbee [ 20.596019] ath: EEPROM regdomain: 0x809c [ 20.596047] ath: EEPROM indicates we should expect a country code [ 20.596070] ath: doing EEPROM country->regdmn map search [ 20.596091] ath: country maps to regdmn code: 0x52 [ 20.596112] ath: Country alpha2 being used: CN [ 20.596130] ath: Regpair used: 0x52 [ 20.596317] ------------[ cut here ]------------ [ 20.600994] WARNING: at fs/sysfs/dir.c:451 sysfs_add_one+0x82/0xa0() [ 20.624263] sysfs: cannot create duplicate filename '/class/ieee80211/phy0' --seems carl9170 want to use the same phy id which was taken by p54usb [ 20.631249] Modules linked in: p54usb(+) carl9170 p54common led_class crc_ccitt mac80211 ath cfg80211 rtc_cmos ehci_hcd ohci_hcd usbcore ide_gd_mod [ 20.664483] Pid: 1141, comm: firmware/carl91 Not tainted 2.6.36-rc6-wl-wlplug20101006 #1 [ 20.672595] Call Trace: [ 20.684320] [<c10d0d52>] ? sysfs_add_one+0x82/0xa0 [ 20.689235] [<c10d0d52>] ? sysfs_add_one+0x82/0xa0 [ 20.694159] [<c101e37c>] warn_slowpath_common+0x6c/0xa0 [ 20.714291] [<c10d0d52>] ? sysfs_add_one+0x82/0xa0 [ 20.719210] [<c101e42e>] warn_slowpath_fmt+0x2e/0x30 [ 20.734351] [<c10d0d52>] sysfs_add_one+0x82/0xa0 [ 20.739098] [<c10d1c71>] sysfs_do_create_link+0xf1/0x1d0 [ 20.754405] [<c10d0565>] ? sysfs_add_file_mode+0x55/0x90 [ 20.759855] [<c10d1d82>] sysfs_create_link+0x12/0x20 [ 20.774302] [<c1190d74>] device_add+0x124/0x580 [ 20.779007] [<e099091b>] wiphy_register+0x19b/0x280 [cfg80211] [ 20.794752] [<c1083cb0>] ? __kmalloc+0x70/0xc0 [ 20.799374] [<e0a5442e>] ieee80211_register_hw+0x17e/0x530 [mac80211] [ 20.824361] [<e0b265f0>] ? carl9170_reg_notifier+0x0/0x40 [carl9170] [ 20.830849] [<e0b2639e>] carl9170_register+0x1ee/0x440 [carl9170] [ 20.844310] [<c1197920>] ? request_firmware_work_func+0x0/0x80 [ 20.850280] [<e0b29ed1>] carl9170_usb_firmware_step2+0x81/0xe0 [carl9170] [ 20.874296] [<c1197920>] ? request_firmware_work_func+0x0/0x80 [ 20.880253] [<c119795b>] request_firmware_work_func+0x3b/0x80 [ 20.894782] [<c1035c24>] kthread+0x74/0x80 [ 20.899003] [<c1035bb0>] ? kthread+0x0/0x80 [ 20.903307] [<c1002fb6>] kernel_thread_helper+0x6/0x10 [ 20.924282] ---[ end trace 9fa154a9ec88252b ]--- [ 21.238237] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht' [ 21.240677] Registered led device: p54-phy0::assoc [ 21.240874] Registered led device: p54-phy0::tx [ 21.241065] Registered led device: p54-phy0::rx [ 21.241259] Registered led device: p54-phy0::radio [ 21.241331] usb 4-2: is registered as 'phy0' [ 21.251183] usbcore: registered new interface driver p54usb [ 21.287635] udev: renamed network interface wlan0 to wlan2 [ 23.197295] Adding 1004024k swap on /dev/hda5. Priority:-1 extents:1 across:1004024k and when I replug the usb device it shows: [ 381.379902] usb 2-2: USB disconnect, address 2 [ 384.589713] usb 2-2: new high speed USB device using ehci_hcd and address 3 [ 384.797802] usb 2-2: New USB device found, idVendor=0cf3, idProduct=1002 [ 384.805225] usb 2-2: New USB device strings: Mfr=16, Product=32, SerialNumber=48 [ 384.813306] usb 2-2: Product: USB2.0 WLAN [ 384.817350] usb 2-2: Manufacturer: ATHER [ 384.822311] usb 2-2: SerialNumber: 12345 [ 385.229748] usb 2-2: reset high speed USB device using ehci_hcd and address 3 [ 385.428787] usbcore: registered new interface driver carl9170 [ 385.501003] usb 2-2: driver API: 1.8.8.3 2010-09-28 [1-1] [ 385.506622] usb 2-2: firmware API: 1.8.8.3 2010-09-28 [ 386.805068] ath: EEPROM regdomain: 0x809c [ 386.805095] ath: EEPROM indicates we should expect a country code [ 386.805119] ath: doing EEPROM country->regdmn map search [ 386.805139] ath: country maps to regdmn code: 0x52 [ 386.805161] ath: Country alpha2 being used: CN [ 386.805178] ath: Regpair used: 0x52 [ 386.812918] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht' [ 386.816154] cfg80211: Calling CRDA for country: CN [ 386.833303] input: phy1 WPS Button as /devices/pci0000:00/0000:00:0a.1/usb2/2-2/2-2:1.0/ieee80211/phy1/input0 [ 386.846922] udev: renamed network interface wlan0 to wlan6 [ 386.879907] usb 2-2: Atheros AR9170 is registered as 'phy1' -------- then all goes fine." In a roundup he said that the bug might originate from: http://git.kernel.org/?p=linux/kernel/git/linville/wireless-testing.git;a=commitdiff;h=5a254ffe3ffdfa84fe076009bd8e88da412180d2 and that a previous version of net/wireless/core.c solved the problem. -- 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
