[Bug 242406] mpd & 3G USB modem: Fatal trap 12: page fault while in kernel mode

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242406

--- Comment #4 from Andrey Khlebutin <gadskypapa at gmail.com> ---
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 02
fault virtual address   = 0x28
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff80cf2f16
stack pointer           = 0x28:0xfffffe00004481f0
frame pointer           = 0x28:0xfffffe0000448230
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 (usbus0)
trap number             = 12

panic: page fault
cpuid = 1
time = 1575375614
KDB: stack backtrace:
#0 0xffffffff80c1d297 at kdb_backtrace+0x67
#1 0xffffffff80bd05cd at vpanic+0x19d
#2 0xffffffff80bd0423 at panic+0x43
#3 0xffffffff810a7dcc at trap_fatal+0x39c
#4 0xffffffff810a7e19 at trap_pfault+0x49
#5 0xffffffff810a740f at trap+0x29f
#6 0xffffffff81081a0c at calltrap+0x8
#7 0xffffffff8350c739 at ng_iface_rcvdata+0x129
#8 0xffffffff834eb98d at ng_apply_item+0x2bd
#9 0xffffffff834eb4d6 at ng_snd_item+0x186
#10 0xffffffff834eb98d at ng_apply_item+0x2bd
#11 0xffffffff834eb4d6 at ng_snd_item+0x186
#12 0xffffffff834eb98d at ng_apply_item+0x2bd
#13 0xffffffff834eb4d6 at ng_snd_item+0x186
#14 0xffffffff834eb98d at ng_apply_item+0x2bd
#15 0xffffffff834eb4d6 at ng_snd_item+0x186
#16 0xffffffff834eb98d at ng_apply_item+0x2bd
#17 0xffffffff834eb4d6 at ng_snd_item+0x186

__curthread () at /usr/src/sys/amd64/include/pcpu.h:234
warning: Source file is more recent than executable.
234             __asm("movq %%gs:%P1,%0" : "=r" (td) : "n"
(OFFSETOF_CURTHREAD));
(kgdb) #0  __curthread () at /usr/src/sys/amd64/include/pcpu.h:234
#1  doadump (textdump=<optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:371
#2  0xffffffff80bd01c8 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:451
#3  0xffffffff80bd0629 in vpanic (fmt=<optimized out>, ap=<optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:877
#4  0xffffffff80bd0423 in panic (fmt=<unavailable>)
    at /usr/src/sys/kern/kern_shutdown.c:804
#5  0xffffffff810a7dcc in trap_fatal (frame=0xfffffe0000448130, eva=40)
    at /usr/src/sys/amd64/amd64/trap.c:943
#6  0xffffffff810a7e19 in trap_pfault (frame=0xfffffe0000448130, usermode=0)
    at /usr/src/sys/amd64/amd64/trap.c:767
#7  0xffffffff810a740f in trap (frame=0xfffffe0000448130)
    at /usr/src/sys/amd64/amd64/trap.c:443
#8  <signal handler called>
#9  0xffffffff80cf2f16 in netisr_dispatch_src (proto=1, source=0, 
    m=0xfffff8027496cd00) at /usr/src/sys/net/netisr.c:1100
#10 0xffffffff8350c739 in ng_iface_rcvdata (hook=<optimized out>, 
    item=<optimized out>) at /usr/src/sys/netgraph/ng_iface.c:734
#11 0xffffffff834eb98d in ng_apply_item (node=0xfffff80286dbcd00, 
    item=0xfffff802c69d8d00, rw=0) at /usr/src/sys/netgraph/ng_base.c:2403
#12 0xffffffff834eb4d6 in ng_snd_item (item=0xfffff802c69d8d00, flags=0)
    at /usr/src/sys/netgraph/ng_base.c:2320
#13 0xffffffff834eb98d in ng_apply_item (node=0xfffff802a7fa2500, 
    item=0xfffff802c69d8d00, rw=0) at /usr/src/sys/netgraph/ng_base.c:2403
#14 0xffffffff834eb4d6 in ng_snd_item (item=0xfffff802c69d8d00, flags=0)
    at /usr/src/sys/netgraph/ng_base.c:2320
#15 0xffffffff834eb98d in ng_apply_item (node=0xfffff802a7f9bd00, 
    item=0xfffff802c69d8d00, rw=1) at /usr/src/sys/netgraph/ng_base.c:2403
#16 0xffffffff834eb4d6 in ng_snd_item (item=0xfffff802c69d8d00, flags=0)
    at /usr/src/sys/netgraph/ng_base.c:2320
#17 0xffffffff834eb98d in ng_apply_item (node=0xfffff802a79d3900, 
    item=0xfffff802c69d8d00, rw=0) at /usr/src/sys/netgraph/ng_base.c:2403
#18 0xffffffff834eb4d6 in ng_snd_item (item=0xfffff802c69d8d00, flags=0)
    at /usr/src/sys/netgraph/ng_base.c:2320
#19 0xffffffff834eb98d in ng_apply_item (node=0xfffff80286d67800, 
    item=0xfffff802c69d8d00, rw=0) at /usr/src/sys/netgraph/ng_base.c:2403
#20 0xffffffff834eb4d6 in ng_snd_item (item=0xfffff802c69d8d00, flags=0)
    at /usr/src/sys/netgraph/ng_base.c:2320
#21 0xffffffff83517702 in nga_rcv_async (sc=<optimized out>, 
    item=<optimized out>) at /usr/src/sys/netgraph/ng_async.c:545
#22 nga_rcvdata (hook=<optimized out>, item=<optimized out>)
    at /usr/src/sys/netgraph/ng_async.c:248
#23 0xffffffff834eb98d in ng_apply_item (node=0xfffff80286dabe00, 
    item=0xfffff802c69d8d00, rw=1) at /usr/src/sys/netgraph/ng_base.c:2403
#24 0xffffffff834eb4d6 in ng_snd_item (item=0xfffff802c69d8d00, flags=0)
    at /usr/src/sys/netgraph/ng_base.c:2320
#25 0xffffffff83515bcb in ngt_rint_bypass (tp=<optimized out>, 
    buf=0xfffff802bfd93800, len=<optimized out>)
    at /usr/src/sys/netgraph/ng_tty.c:446
#26 0xffffffff82ab9aba in ucom_put_data (sc=0xfffffe00ac1d2088, 
    pc=<optimized out>, offset=0, len=<optimized out>)
    at /usr/src/sys/dev/usb/serial/usb_serial.c:1540
#27 0xffffffff82aafda5 in u3g_read_callback (xfer=0xfffffe00abb4e278, 
    error=USB_ERR_NORMAL_COMPLETION) at /usr/src/sys/dev/usb/serial/u3g.c:1137
#28 0xffffffff80a0b87b in usbd_callback_wrapper (pq=<optimized out>)
    at /usr/src/sys/dev/usb/usb_transfer.c:2437
#29 0xffffffff80a0cf93 in usb_command_wrapper (pq=0xfffffe00abb4e060, 
    xfer=<optimized out>) at /usr/src/sys/dev/usb/usb_transfer.c:3091
#30 0xffffffff80a0bb4b in usb_callback_proc (_pm=<optimized out>)
    at /usr/src/sys/dev/usb/usb_transfer.c:2298
#31 0xffffffff80a064a5 in usb_process (arg=0xfffffe00007e4500)
    at /usr/src/sys/dev/usb/usb_process.c:178
#32 0xffffffff80b90c23 in fork_exit (
    callout=0xffffffff80a063b0 <usb_process>, arg=0xfffffe00007e4500, 
    frame=0xfffffe00004489c0) at /usr/src/sys/kern/kern_fork.c:1065
#33 <signal handler called>
(kgdb)

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