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Date:      Sat, 17 Jun 2017 22:20:42 +0200
From:      "O. Hartmann" <ohartmann@walstatt.org>
To:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   igb0: core crash (if_io_tqg_0) VLAN
Message-ID:  <20170617222042.6a9d8cb5@thor.intern.walstatt.dynvpn.de>

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Running CURRENT (FreeBSD 12.0-CURRENT #0 r320050: Sat Jun 17 11:03:50 CEST =
2017 amd64) on
PCengines APU 2C4: CPU: AMD GX-412TC SOC with recent Sea BIOS.
The APU is configured as a small router. The tun0 device is spawned from ig=
b0 and bound
to ppp (providing the conenction to my ISP).

igb1 is the internal NIC and it is a Intel i210, identified as igb1. The NI=
C is
configured to bear a also a VLAN called igb1.2 providing a dedicated VoIP n=
etwork
framework on which I'm working for some tests. So far, that setup worked wi=
t a
12-CURRENT roughly two weeks old - I don't have the revison at hand.

Firewall is IPFW.

The very moment I plug in the uplink to the switch, the APU goes down with =
an coredump:

 Fatal trap 12: page fault while in kernel mode
cpuid =3D 0; apic id =3D 00
fault virtual address   =3D 0x0
fault code              =3D supervisor write data, page not present
instruction pointer     =3D 0x20:0xffffffff8068b5c0
stack pointer           =3D 0x28:0xfffffe0126762920
frame pointer           =3D 0x28:0xfffffe01267629f0
code segment            =3D base 0x0, limit 0xfffff, type 0x1b
                        =3D DPL 0, pres 1, long 1, def32 0, gran 1
                                                processor eflags        =3D=
 interrupt
enabled, resume, IOPL =3D 0 current process         =3D 0 (if_io_tqg_0)
                                                trap number             =3D=
 12
                                                panic: page fault
                                                cpuid =3D 0
                                                time =3D 1497723644
                                                Uptime: 21s
                                                Dumping 253 out of 4063
MB:..7%..13%..26%..32%..45%..51%..64%..76%..82%..95% Dump complete
                                                PCEngines apu2
                                                coreboot build 20170228
                                                4080 MB ECC DRAM

                                                SeaBIOS (version rel-1.10.0=
.1)

                                                Press F10 key now for boot =
menu


--=20
O. Hartmann

Ich widerspreche der Nutzung oder =C3=9Cbermittlung meiner Daten f=C3=BCr
Werbezwecke oder f=C3=BCr die Markt- oder Meinungsforschung (=C2=A7 28 Abs.=
 4 BDSG).

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