Debian testing wpa_supplicant 1.03 cannot roam between wifi APs without me killing wpa_supplicant (intel 6300 AGN)

Tue Feb 19 07:33:45 PST 2013

Does on "iw scan" (or wpa_cli scan) instead of killing also help?

Did you try the bg_scan feature?

2013/2/18 Marc MERLIN <marc_hostap at merlins.org>

> On Fri, Feb 15, 2013 at 07:43:53PM -0800, Marc MERLIN wrote:
> > On Thu, Feb 14, 2013 at 11:28:21PM -0800, Marc MERLIN wrote:
>
> Could someone give me a clue if I'm hitting bugs in wpa_supplicant (it
> seems
> like it since I have to kill and it works when restarted), or if the
> problem
> might be with the Intel 6300 AGN chip
>
> Specifically, I'd like to tell the debian folks not to upgrade
> wpasupplicant
> to the newer series and stay with the older versions if I don't have good
> feeling that the new version works properly.
>
> Thanks,
> Marc
>
> > > Howdy
> > >
> > > First, the basics:
> > >
> > > kernel: 3.7.4-amd64-preempt-20121226-fixwd
> > > debian-testing
> > > wpasupplicant-1.0-3+b2
> > >
> > > iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1 build 25532
> > > iwldvm: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:d
> > > iwldvm: Copyright(c) 2003-2012 Intel Corporation
> > > iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG enabled
> > > iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
> > > iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
> > > iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE enabled
> > > iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P enabled
> > > iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Ultimate-N 6300
> AGN, REV=0x74
> > > iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
> > > iwlwifi 0000:03:00.0: RF_KILL bit toggled to enable radio.
> > > iwlwifi 0000:03:00.0: device EEPROM VER=0x43a, CALIB=0x6
> > > iwlwifi 0000:03:00.0: Device SKU: 0x1F0
> > > iwlwifi 0000:03:00.0: Valid Tx ant: 0x7, Valid Rx ant: 0x7
> > >
> > > I started with being connected ok to 2C:B0:5D:3C:7D:F1, and walked
> mostly out of range and close to 2c:b0:5d:a0:c8:a6
> > >
> > > wpa_supplicant actually did connect to 2c:b0:5d:a0:c8:a6, then I had a
> few pings that went through the
> > > new AP, and then the pings stopped.
> > > Networking never recovered until after I ran kilall wpa_supplicant.
> > > This basically happens every time I roam :(
> > >
> > > Debian runs it like so:
> > > root     14862  0.0  0.0  31024  2828 ?        S    20:59   0:00
> /sbin/wpa_supplicant -u -s -O /var/run/wpa_supplicant
> > >
> > > Should I be overriding what debian does and run it like so instead?
> > > /sbin/wpa_supplicant -u -onl80211 -O/var/run/wpa_supplicant -f
> /var/log/wpa_supplicant.log
> > So, I tried that, and it didn't help:
> >
> > Roaming works:
> > wlan0: SME: Trying to authenticate with 2c:b0:5d:a0:c8:a6
> (SSID='magicnet-a' freq=5785 MHz)
> > wlan0: Trying to associate with 2c:b0:5d:a0:c8:a6 (SSID='magicnet-a'
> freq=5785 MHz)
> > wlan0: Associated with 2c:b0:5d:a0:c8:a6
> > wlan0: WPA: Key negotiation completed with 2c:b0:5d:a0:c8:a6 [PTK=CCMP
> GTK=CCMP]
> > wlan0: CTRL-EVENT-CONNECTED - Connection to 2c:b0:5d:a0:c8:a6 completed
> (reauth) [id=0 id_str=]
> >
> >
> > Feb 15 19:40:06 gandalfthegreat NetworkManager[18472]: <info> (wlan0):
> supplicant interface state: 4-way handshake -> completed
> > Feb 15 19:40:06 gandalfthegreat kernel: [388631.790948] cfg80211: Found
> new beacon on frequency: 5785 MHz (Ch 157) on phy0
> > Feb 15 19:40:09 gandalfthegreat NetworkManager[18472]: <info> (wlan0):
> roamed from BSSID 2C:B0:5D:3C:7D:F1 (magicnet-a) to 2C:B0:5D:A0:C8:A6
> (magicnet-a)
> >
> > I get 2 pings out after connecting to the new AP, and then the
> > connection hangs.
> >
> > A while later wpasupplicant goes back to the old unusable AP:
> >
> > wlan0: WPA: Group rekeying completed with 2c:b0:5d:a0:c8:a6 [GTK=CCMP]
> > wlan0: WPA: Group rekeying completed with 2c:b0:5d:a0:c8:a6 [GTK=CCMP]
> > wlan0: WPA: Group rekeying completed with 2c:b0:5d:a0:c8:a6 [GTK=CCMP]
> > wlan0: WPA: Group rekeying completed with 2c:b0:5d:a0:c8:a6 [GTK=CCMP]
> > wlan0: CTRL-EVENT-DISCONNECTED bssid=2c:b0:5d:a0:c8:a6 reason=2
> > wlan0: SME: Trying to authenticate with 2c:b0:5d:3c:7d:f1
> (SSID='magicnet-a' freq=5745 MHz)
> > wlan0: Trying to associate with 2c:b0:5d:3c:7d:f1 (SSID='magicnet-a'
> freq=5745 MHz)
> > wlan0: Associated with 2c:b0:5d:3c:7d:f1
> > wlan0: WPA: Key negotiation completed with 2c:b0:5d:3c:7d:f1 [PTK=CCMP
> GTK=CCMP]
> > wlan0: CTRL-EVENT-CONNECTED - Connection to 2c:b0:5d:3c:7d:f1 completed
> (reauth) [id=0 id_str=]
> > Feb 15 19:41:00 gandalfthegreat kernel: [388685.212350] iwlwifi
> 0000:03:00.0: fail to flush all tx fifo queues
> > Feb 15 19:41:00 gandalfthegreat kernel: [388685.212462] wlan0:
> deauthenticated from 2c:b0:5d:a0:c8:a6 (Reason: 2)
> > (...)
> > Feb 15 19:41:02 gandalfthegreat kernel: [388687.455482] wlan0:
> authenticate with 2c:b0:5d:3c:7d:f1
> > Feb 15 19:41:02 gandalfthegreat NetworkManager[18472]: <info> (wlan0):
> supplicant interface state: scanning -> authenticating
> > Feb 15 19:41:02 gandalfthegreat kernel: [388687.487733] wlan0: send auth
> to 2c:b0:5d:3c:7d:f1 (try 1/3)
> > Feb 15 19:41:02 gandalfthegreat kernel: [388687.689936] wlan0: send auth
> to 2c:b0:5d:3c:7d:f1 (try 2/3)
> > Feb 15 19:41:02 gandalfthegreat kernel: [388687.690640] wlan0:
> authenticated
> > Feb 15 19:41:02 gandalfthegreat NetworkManager[18472]: <info> (wlan0):
> supplicant interface state: authenticating -> associating
> > Feb 15 19:41:02 gandalfthegreat kernel: [388687.693975] wlan0: associate
> with 2c:b0:5d:3c:7d:f1 (try 1/3)
> > Feb 15 19:41:02 gandalfthegreat kernel: [388687.897369] wlan0: associate
> with 2c:b0:5d:3c:7d:f1 (try 2/3)
> > Feb 15 19:41:02 gandalfthegreat kernel: [388687.905992] wlan0: RX
> AssocResp from 2c:b0:5d:3c:7d:f1 (capab=0x11 status=0 aid=1)
> > Feb 15 19:41:02 gandalfthegreat kernel: [388687.909358] wlan0: associated
> >
> > and then things don't work either because that AP is too far.
> >
> > So why is roaming broken for me and how do I fix it?
> >
> > Thanks,
> > Marc
> > --
> > "A mouse is a device used to point at the xterm you want to type in" -
> A.S.R.
> > Microsoft is to operating systems ....
> >                                       .... what McDonalds is to gourmet
> cooking
> > Home page: http://marc.merlins.org/
> > _______________________________________________
> > HostAP mailing list
> > HostAP at lists.shmoo.com
> > http://lists.shmoo.com/mailman/listinfo/hostap
>
> --
> "A mouse is a device used to point at the xterm you want to type in" -
> A.S.R.
> Microsoft is to operating systems ....
>                                       .... what McDonalds is to gourmet
> cooking
> Home page: http://marc.merlins.org/
> _______________________________________________
> HostAP mailing list
> HostAP at lists.shmoo.com
> http://lists.shmoo.com/mailman/listinfo/hostap
>
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