https://bugzilla.kernel.org/show_bug.cgi?id=51061 --- Comment #1 from Luis R. Rodriguez <mcgrof@xxxxxxxxx> 2012-11-29 19:04:33 --- Thanks for the great report, you've done your homework well. Arend I've added you given that upon review I see no direct issues related to backport code but instead this seems to be a real valid upstream issue that can likely be reproduced as an interoperability issue with the Dlink AP and TP-Link AP. Upon my review the logs do not detail why you are getting authentication timeouts and the deauthentications by "Deauthenticated because sending station is leaving " seems to happen as per the iw event logs likely because of the "RSSI went below threshold", but not sure if the supplicant would kick you off just because of this if you don't have another AP that it would try that would have a better signal. Also I believe your supplicant (v1.0) is using the wext driver and while this should work I encourage Linux distributions to use both: * 1) a newer wpa_supplicant (possibly development version, don't get me started), and * 2) nl80211 driver for wpa_supplicant I'll let Arend dig into the logs to see if he recognizes the issue but in the meantime Mario a few things you could do is upgrade wpa_supplicant to the latest git version, and also use the nl80211 driver, you can test it out manually. Here's an example config: mcgrof@frijol ~/wpa $ cat tesla-2g-bcm.conf ctrl_interface=/var/run/wpa_supplicant network={ ssid="tesla-2g-bcm" bgscan="simple:30:-45:300" key_mgmt=WPA-PSK proto=RSN pairwise=CCMP group=CCMP psk="somefoobar" } You would run: sudo wpa_supplicant -i wlan0 -D nl80211 -c tesla-2g-bcm.conf Arend, for what its worth the APs are in two channels on the 2.4 GHz band, either on freq 2462 MHz (channel 11) or freq 2442 (channel 7). I should note that you do have the fglrx driver and while that is proprietary and taints the kernel I do not suspect that is an issue here. Arend, I do believe the warning spit out is real and not caused by backport work but instead a real driver warning. [ 1219.926123] ------------[ cut here ]------------ [ 1219.926168] WARNING: at /usr/local/src/compat-wireless-3.6.6-1/drivers/net/wireless/brcm80211/brcmsmac/main.c:8000 brcms_c_wait_for_tx_co mpletion+0x99/0xb0 [brcmsmac]() [ 1219.926178] Hardware name: 305U1A [ 1219.926182] Modules linked in: usb_storage uas sg snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mix er_oss ipv6 nls_iso8859_1 nls_cp437 vfat fat cpufreq_ondemand lp ppdev parport_pc parport fuse btusb bluetooth uvcvideo videobuf2_vmalloc vi deobuf2_memops videobuf2_core videodev brcmsmac(O) ohci_hcd ssb fglrx(PO) cordic mmc_core sp5100_tco joydev powernow_k8 brcmutil(O) mac80211 (O) ehci_hcd samsung_laptop pcmcia pcmcia_core agpgart video mperf i2c_piix4 processor battery freq_table evdev i2c_core button ac k10temp c fg80211(O) rfkill bcma(O) psmouse serio_raw thermal_sys hwmon snd_hda_codec_realtek r8169 snd_hda_codec_hdmi compat(O) mii snd_hda_intel snd _hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore microcode loop [ 1219.926331] Pid: 827, comm: kworker/u:6 Tainted: P O 3.4.18_MDeC-nov12 #1 [ 1219.926338] Call Trace: [ 1219.926356] [<ffffffff8105082f>] warn_slowpath_common+0x7f/0xc0 [ 1219.926368] [<ffffffff8105088a>] warn_slowpath_null+0x1a/0x20 [ 1219.926391] [<ffffffffa06d7859>] brcms_c_wait_for_tx_completion+0x99/0xb0 [brcmsmac] [ 1219.926410] [<ffffffffa06ca60b>] brcms_ops_flush+0x3b/0x60 [brcmsmac] [ 1219.926442] [<ffffffffa01f7c3b>] __ieee80211_recalc_idle+0x23b/0x2f0 [mac80211] [ 1219.926470] [<ffffffffa01f8093>] ieee80211_recalc_idle+0x33/0x60 [mac80211] [ 1219.926498] [<ffffffffa02130f2>] ieee80211_sta_rx_queued_mgmt+0x392/0x5a0 [mac80211] [ 1219.926524] [<ffffffffa01f766c>] ieee80211_iface_work+0x25c/0x360 [mac80211] [ 1219.926537] [<ffffffff8106ab3b>] process_one_work+0x12b/0x400 [ 1219.926562] [<ffffffffa01f7410>] ? ieee80211_check_queues+0x100/0x100 [mac80211] [ 1219.926574] [<ffffffff8106c36e>] worker_thread+0x12e/0x2d0 [ 1219.926586] [<ffffffff8106c240>] ? manage_workers.isra.26+0x1f0/0x1f0 [ 1219.926596] [<ffffffff810714d3>] kthread+0x93/0xa0 [ 1219.926607] [<ffffffff81572cd4>] kernel_thread_helper+0x4/0x10 [ 1219.926618] [<ffffffff81071440>] ? kthread_freezable_should_stop+0x70/0x70 [ 1219.926627] [<ffffffff81572cd0>] ? gs_change+0xb/0xb [ 1219.926634] ---[ end trace 5e1a1376ac921f6e ]--- Mario another thing you could do is try a new upgraded release of compat-drivers, now based on v3.7: http://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.7-rc1/compat-drivers-3.7-rc1-3.tar.bz2 -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe backports" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
