Comment 25 for bug 1173723

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penalvch (penalvch) wrote : Re: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050; RIP: 0010:[<ffffffffa046ada1>] [<ffffffffa046ada1>] v4l2_ctrl_g_ctrl+0x11/0x60 [videodev]

SlavikZ, thank you for commit bisecting the kernel. Could you please boot into a Live environment of Quantal via http://releases.ubuntu.com/quantal/ , unplug all USB devices, plug in just the Hercules Blog Webcam, and then immediately execute the following in a terminal and attach the results:
lsusb -v > lsusb-v.log