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Date:      Tue, 6 Dec 2011 20:34:19 -0600
From:      Chuck Burns <break19@gmail.com>
To:        Bernhard Schmidt <bschmidt@techwires.net>
Cc:        "Andrey V. Elsukov" <ae@freebsd.org>, Adrian Chadd <adrian@freebsd.org>, freebsd-net@freebsd.org
Subject:   Re: [urtw] Wifi link dying randomly. reboot required to reconnect.
Message-ID:  <CAE2yjrph7J34B_73fB6O0p0pQgK38v3kTyxekAs0eFLE=y4ppg@mail.gmail.com>
In-Reply-To: <CAAgh0_bphb%2Bigka4iRUGHqGNUJ%2BA-XXqduwa6mN1sFzB46AJNg@mail.gmail.com>
References:  <201110042008.48915.break19@gmail.com> <201110071816.17335.break19@gmail.com> <CAJ-Vmok3m4jZ3CKwVajDdo-8wfN0niocNdjWcQWawof6QyZ0aw@mail.gmail.com> <201110071936.50071.break19@gmail.com> <CAJ-Vmo=tng00vkd91jhodaiJtnZCktUyKEhqCMik3zcJFuS4eg@mail.gmail.com> <CAE2yjroY%2BA3g6%2BVVP6ZeEDArVyjj0KVZCMK4mgg2MXQZnwvjZg@mail.gmail.com> <1322792905.1975.3.camel@esl.kevlo.org> <4ED846C1.5040109@gmail.com> <4EDC32F5.3020205@gmail.com> <CAJ-Vmo=BF3nbAZcYQKHpoAkYjHM09LozXCLB0yxkDO5HdFo8_g@mail.gmail.com> <4EDCA970.4050109@FreeBSD.org> <CAE2yjrrdoD2tuiVcKM4x686b3OZMVOYj6BBA8rU%2BSJ_Qt1VGRA@mail.gmail.com> <CAAgh0_bphb%2Bigka4iRUGHqGNUJ%2BA-XXqduwa6mN1sFzB46AJNg@mail.gmail.com>

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It crashed again earlier, and I have another trace for you.  My wifi
died, and I tried service netif restart. It refused to associate to
the WAP.  Unplugging the dongle then caused a kernel panic, attached
is the core.txt file from the dump.

On Mon, Dec 5, 2011 at 7:59 AM, Bernhard Schmidt <bschmidt@techwires.net> w=
rote:
> On Mon, Dec 5, 2011 at 14:44, Chuck Burns <break19@gmail.com> wrote:
>> freebeast dumped core - see /var/crash/vmcore.0
>> Sun Dec =A04 14:58:49 CST 2011
>> FreeBSD freebeast 10.0-CURRENT FreeBSD 10.0-CURRENT #4 r228221: Sat
>> Dec =A03 09:10:37 CST 2011
>> toor@freebeast:/usr/obj/usr/src/sys/GENERIC =A0amd64
>> panic:
>> ..
>> #9 =A00xffffffff8092f692 in node_free (ni=3D0xffffff8003565000)
>> =A0 =A0at ieee80211_ratectl.h:84
>> #10 0xffffffff8071634b in urtw_free_data_list (sc=3DVariable "sc" is not
>> available.
>> )
>> =A0 =A0at /usr/src/sys/dev/usb/wlan/if_urtw.c:989
>> #11 0xffffffff8071bf75 in urtw_detach (dev=3D0xfffffe0005b22a00)
>> =A0 =A0at /usr/src/sys/dev/usb/wlan/if_urtw.c:957
>> #12 0xffffffff80868d54 in device_detach (dev=3D0xfffffe0005b22a00)
>> =A0 =A0at device_if.h:214
>> #13 0xffffffff806df6a8 in usb_detach_device (udev=3D0xfffffe0005b19000,
>> =A0 =A0iface_index=3D32 ' ', flag=3DVariable "flag" is not available.
>> ) at /usr/src/sys/dev/usb/usb_device.c:1062
>> #14 0xffffffff806dffc4 in usb_unconfigure (udev=3D0xfffffe0005b19000,
>> flag=3DVariable "flag" is not available.
>
> ni/vap does no longer exist at that point because it has been free'd
> before. How about attached patch?
>
> --
> Bernhard



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