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Date:      Tue, 1 Jun 2021 05:18:03 -0700
From:      David Wolfskill <david@catwhisker.org>
To:        current@freebsd.org
Subject:   wpa_supplicant: SIGBUS after main-n247052-d40cd26a86a7 -> main-n247092-ec7b47fc81b2
Message-ID:  <YLYle5bAV%2BaDYzVS@albert.catwhisker.org>

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Reading symbols from /usr/obj/usr/src/amd64.amd64/usr.sbin/wpa/wpa_supplica=
nt/wpa_supplicant...
(No debugging symbols found in /usr/obj/usr/src/amd64.amd64/usr.sbin/wpa/wp=
a_supplicant/wpa_supplicant)
[New LWP 100168]
Core was generated by `/usr/sbin/wpa_supplicant -s -B -i wlan0 -c /etc/wpa_=
supplicant.conf -D bsd -P /v'.
Program terminated with signal SIGBUS, Bus error.
--Type <RET> for more, q to quit, c to continue without paging--
#0  0x00000000010fb34f in wpa_sm_rx_eapol ()
(gdb) bt
#0  0x00000000010fb34f in wpa_sm_rx_eapol ()
#1  0x00000000010f3afe in l2_packet_receive ()
#2  0x0000000001122ef3 in eloop_run ()
#3  0x00000000010b44a8 in wpa_supplicant_run ()
#4  0x000000000109fdec in main ()
(gdb)=20

wlan0 is an iwn(4) device, in this case.  Not yet sure how reproducible
this is, but wpa_supplicant's issue(s) do not (yet) seem to prevent the
machine from using teh network (as I'm typing on the laptop's keyboard
to write this).

uname strings: yesterday:

FreeBSD g1-55.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #258 main-n2=
47052-d40cd26a86a7: Mon May 31 05:48:18 PDT 2021     root@g1-55.catwhisker.=
org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1400018 1400018

today:

FreeBSD g1-55.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #259 main-n2=
47092-ec7b47fc81b2: Tue Jun  1 04:49:26 PDT 2021     root@g1-55.catwhisker.=
org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1400018 1400018

(Though the laptop did just lose connectivity; checking /var/log/messages:

<6>1 2021-06-01T12:06:15.336865+00:00 g1-55.catwhisker.org kernel - - - wla=
n0: link state changed to DOWN
<2>1 2021-06-01T12:09:26.811751+00:00 g1-55.catwhisker.org kernel - - - if_=
delmulti_locked: detaching ifnet instance 0xfffff800126d6800
<2>1 2021-06-01T12:09:26.811773+00:00 g1-55.catwhisker.org syslogd - - - la=
st message repeated 5 times
<6>1 2021-06-01T12:09:26.811774+00:00 g1-55.catwhisker.org kernel - - - lo0=
: link state changed to DOWN
<27>1 2021-06-01T12:09:27.317032+00:00 g1-55.catwhisker.org dhclient 441 - =
- My address (172.17.1.55) was deleted, dhclient exiting
<2>1 2021-06-01T12:09:27.317474+00:00 g1-55.catwhisker.org kernel - - - if_=
delmulti_locked: detaching ifnet instance 0xfffff800129a1800

I tried "sudo service netif restart" and that brought the connection back
(for now, anyway).

As the laptop is a machine that I connect to networks I do not
control, it uses packet filtering (ipfw, which I've been using since
Whistle Communications, ca. 1998).

The build typescript will be up at
https://www.catwhisker.org/~david/FreeBSD/history/laptop.14_build_typescrip=
t.txt
shortly.

Peace,
david
--=20
David H. Wolfskill                              david@catwhisker.org
Claiming that Donald Trump won the 2020 election is the opposite of
patriotism.  Make of that what you will.

See https://www.catwhisker.org/~david/publickey.gpg for my public key.

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