Hello, Here is the console log from an instance when my carl9170-based AP was stuck in a bad state. The "Dhcp:" messages are from my user-level application and are merely informative. Any ideas on what could have caused so many "device restarts"? The AP was unusable for ~10 min and fixed itself after that. Is the failed channel change an indication? [ 57.355377] ieee80211 phy1: channel change: 2437 -> 2437 failed (2). #### hostapd started Dhcp: Lease count changed: 17 -> 23 [ 74.126281] usb 1-1: restart device (4) [ 75.270019] usb 1-1: device restarted successfully. [ 75.282958] ieee80211 phy1: Hardware restart was requested [ 76.095520] ieee80211 phy1: channel change: 2437 -> 2437 failed (2). [ 83.962158] usb 1-1: restart device (4) [ 85.105957] usb 1-1: device restarted successfully. [ 85.117248] ieee80211 phy1: Hardware restart was requested [ 85.925445] ieee80211 phy1: channel change: 2437 -> 2437 failed (2). [ 101.475524] ieee80211 phy1: invalid plcp cck rate (0). [ 105.235229] ieee80211 phy1: invalid plcp cck rate (0). [ 116.718292] ieee80211 phy1: invalid plcp cck rate (0). [ 123.892150] usb 1-1: restart device (4) [ 125.035339] usb 1-1: device restarted successfully. [ 125.050964] ieee80211 phy1: Hardware restart was requested Dhcp: Lease count changed: 23 -> 27 Dhcp: Lease count changed: 31 -> 35 [ 213.108276] ieee80211 phy1: invalid plcp cck rate (0). [ 236.235626] usb 1-1: restart device (4) [ 237.379180] usb 1-1: device restarted successfully. [ 237.397216] ieee80211 phy1: Hardware restart was requested [ 245.719970] usb 1-1: restart device (4) [ 246.863586] usb 1-1: device restarted successfully. [ 246.882110] ieee80211 phy1: Hardware restart was requested [ 247.692077] ieee80211 phy1: channel change: 2437 -> 2437 failed (2). [ 260.595031] usb 1-1: restart device (4) [ 261.738433] usb 1-1: device restarted successfully. [ 261.752441] ieee80211 phy1: Hardware restart was requested [ 270.933074] ieee80211 phy1: invalid plcp cck rate (0). [ 285.126220] usb 1-1: restart device (4) [ 286.269622] usb 1-1: device restarted successfully. [ 286.295989] ieee80211 phy1: Hardware restart was requested [ 297.403289] ieee80211 phy1: invalid plcp cck rate (0). [ 362.321533] usb 1-1: restart device (4) [ 363.465087] usb 1-1: device restarted successfully. [ 363.478973] ieee80211 phy1: Hardware restart was requested [ 365.365234] ieee80211 phy1: invalid plcp cck rate (0). [ 373.162506] ieee80211 phy1: invalid plcp cck rate (0). [ 379.313629] usb 1-1: restart device (4) [ 380.321624] usb 1-1: kill pending tx urbs. [ 381.465850] usb 1-1: device restarted successfully. [ 381.503601] ieee80211 phy1: Hardware restart was requested [ 402.352691] usb 1-1: restart device (4) [ 403.497619] usb 1-1: device restarted successfully. [ 403.539215] ieee80211 phy1: Hardware restart was requested [ 419.376220] usb 1-1: restart device (4) [ 420.519714] usb 1-1: device restarted successfully. [ 420.541839] ieee80211 phy1: Hardware restart was requested [ 425.160736] ieee80211 phy1: invalid plcp cck rate (0). [ 429.087493] ieee80211 phy1: invalid plcp cck rate (0). [ 443.876251] usb 1-1: restart device (4) [ 445.027557] usb 1-1: device restarted successfully. [ 445.061523] ieee80211 phy1: Hardware restart was requested [ 453.605346] ieee80211 phy1: invalid plcp cck rate (0). [ 460.923065] usb 1-1: restart device (4) [ 462.066619] usb 1-1: device restarted successfully. [ 462.079711] ieee80211 phy1: Hardware restart was requested [ 468.083282] ieee80211 phy1: invalid plcp cck rate (0). [ 476.703277] ieee80211 phy1: invalid plcp cck rate (0). [ 485.423095] usb 1-1: restart device (4) [ 486.566833] usb 1-1: device restarted successfully. [ 486.580322] ieee80211 phy1: Hardware restart was requested [ 494.907440] usb 1-1: restart device (4) [ 496.051025] usb 1-1: device restarted successfully. [ 496.064727] ieee80211 phy1: Hardware restart was requested [ 509.407470] usb 1-1: restart device (4) [ 510.550872] usb 1-1: device restarted successfully. [ 510.563232] ieee80211 phy1: Hardware restart was requested [ 511.534698] ieee80211 phy1: invalid plcp cck rate (0). [ 602.615661] ieee80211 phy1: invalid plcp cck rate (0). [ 616.634002] usb 1-1: restart device (4) [ 617.777526] usb 1-1: device restarted successfully. [ 617.816711] ieee80211 phy1: Hardware restart was requested Dhcp: Lease count changed: 35 -> 37 Dhcp: Lease count changed: 37 -> 42 Dhcp: Lease count changed: 42 -> 43 [ 662.467742] ieee80211 phy1: invalid plcp cck rate (0). Dhcp: Lease count changed: 43 -> 50 Dhcp: Lease count changed: 50 -> 54 Thanks, - Harshal -- 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
