Re: CURRENT (r316844): Fatal trap 12: page fault while in kernel mode (syslogd)

On Fri, Apr 14, 2017 at 9:53 AM, O. Hartmann <o.hartmann_at_walstatt.org> wrote:
> I just updated today CURRENT's tree sources for nanoBSD to r316844 and recompiled an
> image I use for an PCengines APU 2C4. The APU now crashes with the error shown below.
>
> r316717 is all right and boots and works as expected.
>
> Just now, I depend on the box, so debugging kernel with more info is underway, but in due
> time.
>
> Kind regards,
>
> Oliver
>
> [...]
> uhub2: <vendor 0x0438 product 0x7900, class 9/0, rev 2.00/0.18, addr 2> on usbus1
> uhub2: 4 ports with 4 removable, self powered
> Link state changed to up
> igb0: link state changed to UP
> Link state changed to up
> igb1: link state changed to UP
> igb1.100: link state changed to UP
> igb1.2: link state changed to UP
> igb1.66: link state changed to UP
> igb1.111: link state changed to UP
> igb1.10: link state changed to UP
> tun0: link state changed to UP
> link state changed to down
> igb0: link state changed to DOWN
> Bump sched buckets to 64 (was 0)
> Link state changed to up
>
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address   = 0xfffff80012231600
> fault code              = supervisor read instruction, protection violation
> instruction pointer     = 0x20:0xfffff80012231600
> stack pointer           = 0x28:0xfffffe012cdc1f58
> frame pointer           = 0x28:0xfffffe012cdc1fc0
> 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         = 941 (syslogd)
> trap number             = 12
> panic: page fault
> cpuid = 1
> time = 1492182471
> Uptime: 16s
> PCEngines apu2
> coreboot build 20160311

At a minimum, you need to include a backtrace with a bug report like this.

-Alan