[Bug 191432] New: FreeBSD 10.0-STABLE #0 r267746: panic when using ue0 network

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=191432

            Bug ID: 191432
           Summary: FreeBSD 10.0-STABLE #0 r267746: panic when using ue0
                    network
           Product: Base System
           Version: 10.0-STABLE
          Hardware: Any
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: usb
          Assignee: freebsd-usb at FreeBSD.org
          Reporter: vikashb at where-ever.za.net

Created attachment 144187
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=144187&action=edit
core.txt

hardware:
Dell M3800

nic:
ugen2.4: <AX88179 ASIX Elec. Corp.> at usbus2, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON (248mA)


Unread portion of the kernel message buffer:
panic: vm_fault: fault on nofault entry, addr: fffffe02346f0000
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff8092a2d0 at kdb_backtrace+0x60
#1 0xffffffff808ef825 at panic+0x155
#2 0xffffffff80b5f8e9 at vm_fault_hold+0x1a89
#3 0xffffffff80b5de17 at vm_fault+0x77
#4 0xffffffff80ce455c at trap_pfault+0x19c
#5 0xffffffff80ce3d80 at trap+0x4a0
#6 0xffffffff80cca7f2 at calltrap+0x8
#7 0xffffffff81c1687e at axge_bulk_read_callback+0x19e
#8 0xffffffff8079684c at usbd_callback_wrapper+0x71c
#9 0xffffffff80797ac3 at usb_command_wrapper+0x113
#10 0xffffffff80796a71 at usb_callback_proc+0xc1
#11 0xffffffff80791b8f at usb_process+0x11f
#12 0xffffffff808c03da at fork_exit+0x9a
#13 0xffffffff80ccad2e at fork_trampoline+0xe
Uptime: 10m38s

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