[ubuntu] UVC camera program crash, then USB port no working anymore

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http://ubuntuforums.org – Hi, I have one program to run UVC camera After a segfault, my usb port are all no response. Ubuntu 12.04, 3.5.0-30-generic, 64bit, usb 3.0 port -> usb 3.0 hub with one usb 2.0 camera and one NIC Here is dmesg: [ 131.838543] full[2366]: segfault at 7f2d47f81000 ip 00007f2d4643e59b sp 00007fff26aad838 error 7 in libc-2.15.so[7f2d463b2000+1b5000] [ 131.952214] xhci_hcd 0000:00:14.0: Signal while waiting for configure endpoint command [ 131.952256] usb 3-2.2: Not enough bandwidth for altsetting 0 [ 131.952258] xhci_hcd 0000:00:14.0: WARN Set TR Deq Ptr cmd with unknown completion code (Hardware)