[Bug 227720] Kernel panic in ppp server

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227720

            Bug ID: 227720
           Summary: Kernel panic in ppp server
           Product: Base System
           Version: 11.1-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: matt.allanson at trimedx.com

Created attachment 192755
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=192755&action=edit
KCONF and nanobsd config

I'm running a FreeBSD 11.1-RELEASE after build using nanobsd.sh. Hardware is
amd64 running in a virtual machine (vmware). Attached is kernel config and
nanobsd config. 

The system is rebooting every 30 minutes to 8 hours. Sample dmesg output is:

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x0
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff805bbe57
stack pointer           = 0x28:0xfffffe0000242360
frame pointer           = 0x28:0xfffffe00002424b0
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         = 37669 (ppp)
trap number             = 12
panic: page fault
cpuid = 0
Uptime: 8h6m0s


Any additional information needed please let me know.

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