Kernel oops when shutting down program using usb device

[Philip Balister <philip@xxxxxxxxxxxx>]

The program streams data from the USRP (Universal Software Radio 
Peripheral) and calculates a transfer rate. It looks like the test 
completes and the program ooops as it is exiting.

Let me know if I can collect anything else. I am not much of a usb guy :(

Philip

root@beagleboard:~/gnuradio-3.1.2/usrp/host/apps# 
./test_usrp_standard_rx -D 200rx_overrun
eth0: set allmulti
eth0: set allmulti
eth0: set allmulti
eth0: set allmulti
xfered 1.34e+08 bytes in 116 seconds.  1.159e+06 bytes/sec.  cpu time = 
1.633
noverruns = 1
------------[ cut here ]------------
WARNING: at lib/kref.c:43 kref_get+0x28/0x44()
Modules linked in: ipv6 pegasus
[<c0037b88>] (dump_stack+0x0/0x14) from [<c0053c44>] 
(warn_on_slowpath+0x4c/0x68)
[<c0053bf8>] (warn_on_slowpath+0x0/0x68) from [<c0176064>] 
(kref_get+0x28/0x44)
 r6:c7cbd1c0 r5:c700a880 r4:c700a880
[<c017603c>] (kref_get+0x0/0x44) from [<c01eac18>] (usb_get_urb+0x18/0x20)
 r5:c700a880 r4:c700a880
[<c01eac00>] (usb_get_urb+0x0/0x20) from [<c01e9fa0>] 
(usb_hcd_flush_endpoint+0xa0/0xcc)
 r5:c700a880 r4:c7cbd1b8
[<c01e9f00>] (usb_hcd_flush_endpoint+0x0/0xcc) from [<c01eb1a0>] 
(usb_disable_endpoint+0x5c/0x6c)
 r7:c7c9e000 r6:c7cbd548 r5:c7c9e000 r4:c7cbd1c0
[<c01eb144>] (usb_disable_endpoint+0x0/0x6c) from [<c01eb2dc>] 
(usb_disable_interface+0x34/0x4c)
 r5:00000028 r4:00000001
[<c01eb2a8>] (usb_disable_interface+0x0/0x4c) from [<c01edec0>] 
(usb_unbind_interface+0x44/0xa0)
 r7:00000000 r6:c041a884 r5:c7fc6200 r4:c7fc6220
[<c01ede7c>] (usb_unbind_interface+0x0/0xa0) from [<c01b99e4>] 
(__device_release_driver+0x78/0x98)
 r9:c718c000 r8:c7c9e108 r7:00000001 r6:c7fc6200 r5:c041a884
r4:c7fc6220
[<c01b996c>] (__device_release_driver+0x0/0x98) from [<c01b9ab8>] 
(device_release_driver+0x24/0x30)
 r5:c7fc62c8 r4:c7fc6220
[<c01b9a94>] (device_release_driver+0x0/0x30) from [<c01eda20>] 
(usb_driver_release_interface+0x54/0x90)
 r5:c7c9e060 r4:c7f91180
[<c01ed9cc>] (usb_driver_release_interface+0x0/0x90) from [<c01f0e74>] 
(releaseintf+0x58/0x64)
 r7:00000001 r6:c7fc6200 r5:00000002 r4:c7f91180
[<c01f0e1c>] (releaseintf+0x0/0x64) from [<c01f1024>] 
(usbdev_release+0x80/0xec)
 r7:00000001 r6:c7c9e000 r5:00000002 r4:c7f91180
[<c01f0fa4>] (usbdev_release+0x0/0xec) from [<c00a1efc>] (__fput+0xb8/0x170)
 r9:c718c000 r8:c78ec080 r7:00000006 r6:c700ab80 r5:c707d3d0
r4:00000008
[<c00a1e44>] (__fput+0x0/0x170) from [<c00a2270>] (fput+0x30/0x34)
[<c00a2240>] (fput+0x0/0x34) from [<c009ee78>] (filp_close+0x74/0x80)
[<c009ee04>] (filp_close+0x0/0x80) from [<c00a0390>] (sys_close+0x84/0xb8)
 r7:00000006 r6:00000000 r5:c700ab80 r4:c7fefb40
[<c00a030c>] (sys_close+0x0/0xb8) from [<c0033b00>] 
(ret_fast_syscall+0x0/0x2c)
 r5:40050250 r4:00012668
---[ end trace fa9f194ff0bebebb ]---

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Description: S/MIME Cryptographic Signature