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 igb0 
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 NIC is
configured to bear a also a VLAN called igb1.2 providing a dedicated VoIP 
network
framework on which I'm working for some tests. So far, that setup worked wit 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 = 0; apic id = 00
fault virtual address   = 0x0
fault code              = supervisor write data, page not present
instruction pointer     = 0x20:0xffffffff8068b5c0
stack pointer           = 0x28:0xfffffe0126762920
frame pointer           = 0x28:0xfffffe01267629f0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
                                                processor eflags        = 
interrupt
enabled, resume, IOPL = 0 current process         = 0 (if_io_tqg_0)
                                                trap number             = 12
                                                panic: page fault
                                                cpuid = 0
                                                time = 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


-- 
O. Hartmann

Ich widerspreche der Nutzung oder Übermittlung meiner Daten für
Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG).

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