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Date:      Sat, 20 Aug 2016 18:29:35 -0700
From:      Adrian Chadd <adrian.chadd@gmail.com>
To:        Kevin Oberman <rkoberman@gmail.com>
Cc:        FreeBSD Net <net@freebsd.org>, Andriy Voskoboinyk <avos@freebsd.org>
Subject:   Re: iwn(4) association issues in 11-Stable (and maybe RC)
Message-ID:  <CAJ-VmokAQYQGsdPhoDS%2Bty6toc_oXs_V5rND11_3Qc8Dc_4TdQ@mail.gmail.com>
In-Reply-To: <CAN6yY1udTdC4PKE-%2BoOeFQWyV3TYAyCXqwRfT0fq-8fYJQc02A@mail.gmail.com>
References:  <CAN6yY1udTdC4PKE-%2BoOeFQWyV3TYAyCXqwRfT0fq-8fYJQc02A@mail.gmail.com>

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Hi,

There have been some changes to the scan code and iwn scan timeout code.
Andriy may have some ideas.

Thanks!

A

On Aug 19, 2016 3:48 PM, "Kevin Oberman" <rkoberman@gmail.com> wrote:

> Lately I have had serious issues with my system successfully associating.
> These were not present with 10.3.
>
> > uname -a
> FreeBSD rogue 11.0-BETA4 FreeBSD 11.0-BETA4 #1 r303806: Sat Aug  6 18:50:50
> PDT 2016     root@rogue:/usr/obj/usr/src/sys/GENERIC.4BSD  amd64
>
> iwn0@pci0:3:0:0:    class=0x028000 card=0x13118086 chip=0x00858086
> rev=0x34
> hdr=0x00
>     cap 01[c8] = powerspec 3  supports D0 D3  current D0
>     cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
>     cap 10[e0] = PCI-Express 1 endpoint max data 128(128) FLR RO NS
>                  link x1(x1) speed 2.5(2.5) ASPM L1(L0s/L1)
>     ecap 0001[100] = AER 1 0 fatal 0 non-fatal 0 corrected
>     ecap 0003[140] = Serial 1 a088b4ffffc6ad28
>
> Once associated, it works fine, but a dropped association is often not
> re-established and the network fails to come up at boot time. Kernel is
> GENERIC except the 4BSD scheduler.
>
> I've been using a mobile hotspot this week during travels and it has become
> a real pain. With  lot of patience and many "netif restart wlan0"
> operations, it will come up, but it can be painful. Here is what I see in
> messages:
> Aug 19 00:13:52 rogue kernel: wlan0: Ethernet address: a0:88:b4:c6:ad:28
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to UP
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to DOWN
> Aug 19 00:13:52 rogue kernel: iwn0: scan timeout
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to UP
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to DOWN
> Aug 19 00:13:52 rogue kernel: iwn0: scan timeout
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to UP
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to DOWN
> Aug 19 00:13:52 rogue kernel: iwn0: scan timeout
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to UP
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to DOWN
> Aug 19 00:13:52 rogue kernel: iwn0: scan timeout
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to UP
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to DOWN
> Aug 19 00:13:52 rogue kernel: iwn0: scan timeout
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to UP
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to DOWN
> Aug 19 00:13:52 rogue kernel: iwn0: scan timeout
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to UP
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to DOWN
> Aug 19 00:13:52 rogue kernel: iwn0: scan timeout
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to UP
> Aug 19 00:13:52 rogue kernel: ipfw2 (+ipv6) initialized, divert loadable,
> nat loadable, default to deny, logging disabled
> Aug 19 00:13:52 rogue kernel: wlan0: link state changed to DOWN
> Aug 19 00:13:52 rogue kernel: iwn0: scan timeout
> Aug 19 00:13:52 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:14:17 rogue dhclient[362]: send_packet: Network is down
> Aug 19 00:14:37 rogue dhclient[362]: send_packet: Network is down
> Aug 19 00:14:39 rogue wpa_supplicant[350]: wlan0: CTRL-EVENT-TERMINATING
> Aug 19 00:14:39 rogue dhclient[362]: connection closed
> Aug 19 00:14:39 rogue dhclient[362]: exiting.
> Aug 19 00:14:39 rogue rtsold[873]: <rtsock_input_ifannounce> interface
> wlan0 removed
> Aug 19 00:14:39 rogue kernel: wlan0: Ethernet address: a0:88:b4:c6:ad:28
> Aug 19 00:14:39 rogue wpa_supplicant[1621]: Successfully initialized
> wpa_supplicant
> Aug 19 00:14:39 rogue wpa_supplicant[1633]: Successfully initialized
> wpa_supplicant
> Aug 19 00:14:39 rogue root: /etc/rc.d/wpa_supplicant: WARNING: failed to
> start wpa_supplicant
> Aug 19 00:14:39 rogue kernel: iwn0: iwn_read_firmware: ucode rev=0x12a80601
> Aug 19 00:14:39 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:39 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:40 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:40 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:41 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:41 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:42 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:42 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:43 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:43 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:44 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:44 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:45 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:45 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:46 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:46 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:47 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:47 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:48 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:48 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:49 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:49 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:50 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:50 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:50 rogue root: /etc/rc.d/dhclient: WARNING: failed to start
> dhclient
> Aug 19 00:14:51 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:51 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:52 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:52 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
> Aug 19 00:14:53 rogue wpa_supplicant[1634]: ioctl[SIOCS80211, op=103,
> val=0, arg_len=128]: Operation now in progress
> Aug 19 00:14:53 rogue wpa_supplicant[1634]: wlan0: CTRL-EVENT-SCAN-FAILED
> ret=-1 retry=1
>
> Is anyone else seeing this?
>
> Kevin Oberman, Part time kid herder and retired Network Engineer
> E-mail: rkoberman@gmail.com
> PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
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