[Bug 263783] USB MBIM: Support for LTE/4G USB modems (MBIM)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263783

--- Comment #14 from hendrik@0x00.to ---
(In reply to Hans Petter Selasky from comment #13)

umb0 on uhub2
umb0: <Sierra Wireless, Incorporated MC7455, class 0/0, rev 2.10/0.06, addr 3>
on usbus3
umb0: version 1.0


Fatal trap 12: page fault while in kernel mode
cpuid = 4; apic id = 04
fault virtual address   = 0x28
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff80d2cdc4
stack pointer           = 0x28:0xfffffe011db43e50
frame pointer           = 0x28:0xfffffe011db43e80
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         = 15 (umb0)
trap number             = 12
panic: page fault
cpuid = 4
time = 1667064094
KDB: stack backtrace:
#0 0xffffffff80c694a5 at kdb_backtrace+0x65
#1 0xffffffff80c1bb5f at vpanic+0x17f
#2 0xffffffff80c1b9d3 at panic+0x43
#3 0xffffffff810afdf5 at trap_fatal+0x385
#4 0xffffffff810afe4f at trap_pfault+0x4f
#5 0xffffffff81087578 at calltrap+0x8
#6 0xffffffff82b0c7b7 at umb_attach_task+0x37
#7 0xffffffff80a36bd0 at usb_process+0x100
#8 0xffffffff80bd8a9e at fork_exit+0x7e
#9 0xffffffff810885ee at fork_trampoline+0xe

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