Kernel panic - not syncing: Fatal exception in interrupt

Got a Kernel panic - not syncing: Fatal exception in interrupt."

I was rapidly changing channels testing Bug ~~#152~~ and I got a kernel panic.

See attached serial port log. Summary inline below :-

"

KEY: 403 make BOUQUET-
action ->  InfobarChannelSelection ChannelMinusPressed
playing 1:0:1:434:430:1012:EEEE0000:0:0:0:
[eDVBCAService] free slot 0 demux 0 for service 1:0:1:432:430:10CPU 0 Unable to handle kernel paging request at virtual address 001000d4, epc == 8044f3b8, ra == 80450824
Oops[#1]:
Cpu 0
$ 0   : 00000000 10008300 00100100 00001fff
$ 4   : cf0a6ac8 df1f0000 0000ff90 00000002
$ 8   : 00000001 00001000 d6d6a3e8 00000000
$12   : 00000007 cfecb5e8 fffffffd 0005de3f
$16   : 000fefd0 cf0a6bd0 00000200 00002000
$20   : ffffffb7 df1f0000 00000001 00000000
$24   : 80623e70 00000000
$28   : cf192000 cf193a20 ffffff6a 80450824
Hi    : 00006108
Lo    : 00000000
epc   : 8044f3b8 dvb_dmx_swfilter_packet+0xd8/0x5cc
    Tainted: GF       W  O
ra    : 80450824 dvb_dmx_swfilter+0x138/0x1e4
Status: 10008302    KERNEL EXL
Cause : 00800008
BadVA : 001000d4
PrId  : 0002a044 (Brcm4380)
Modules linked in: ipv6 dvb_usb_it913x it913x_fe dvb(OF)
Process dvb (pid: 153, threadinfo=cf192000, task=cf0a4178, tls=00000000)
Stack : cf0a4178 cfe149d8 807131cc cfe14a10 cf0a41b0 8005dc78 00000000 81408200
        81408200 8005801c 00005e37 cfe149d8 0000ff90 df1f0000 00000047 cf0a6ac8
        000000bc 0000ff90 dff3f1e0 cccb9580 ffffff6a 80450824 ffffffff 80057ff0
        81408200 10008300 00000000 cf3e7600 cf3e7600 cfecb400 cf0a6d38 df1f0000
        cf3e7580 8045d12c 00000000 cec0ff0c 00000000 00000000 cf3e7600 00000000
        ...
Call Trace:
[<8044f3b8>] dvb_dmx_swfilter_packet+0xd8/0x5cc
[<80450824>] dvb_dmx_swfilter+0x138/0x1e4
[<8045d12c>] usb_urb_complete+0x13c/0x144
[<8040b470>] usb_hcd_giveback_urb+0x50/0x13c
[<8041cf04>] ehci_urb_done+0x88/0xbc
[<804205e8>] qh_completions+0x26c/0x4ec
[<8042347c>] ehci_work.part.59+0xdc/0x91c
[<804240fc>] ehci_irq+0x358/0x400
[<8040a214>] usb_hcd_irq+0x50/0x8c
[<8007b9c0>] handle_irq_event_percpu+0x64/0x398
[<8007bd44>] handle_irq_event+0x50/0x8c
[<8007f798>] handle_level_irq+0xd4/0x15c
[<8007b054>] generic_handle_irq+0x34/0x4c
[<800073f0>] do_IRQ+0x18/0x28
[<800027f4>] brcm_intc_dispatch.isra.0+0x12c/0x210
[<800029a0>] plat_irq_dispatch+0xc8/0x104
[<800055a8>] ret_from_irq+0x0/0x4
[<8030227c>] __copy_user_common+0x34/0x2d8
[<8045a6a4>] dvb_ringbuffer_write+0x50/0xb4
[<8044e84c>] dvb_dmxdev_ts_callback+0x80/0x14c
[<e0816394>] tDmxThread+0x3f0/0x450 [dvb]
[<e08f7368>] NEXUS_P_ThreadStart+0x28/0x74 [dvb]
[<8004a390>] kthread+0x90/0x98
[<8000753c>] kernel_thread_helper+0x10/0x18


Code: 8e021130  1222005e  2450eed0 <96021104> 1452fff9  00000000  8e0310fc  10600047  00000000
---[ end trace 4eaa2a86a8e2da24 ]---
12:EEEE0000:0:0:Kernel panic - not syncing: Fatal exception in interrupt
Rebooting in 180 seconds..

Reproduction steps

Recording in progress on USB tuner D
Rapidly cycle through channels
Bang!

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