[ 243.591455] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 243.599689] pgd = d876c000 [ 243.602439] [00000000] *pgd=00000000 [ 243.606051] Internal error: Oops: 5 [#1] ARM [ 243.610354] CPU: 0 PID: 5056 Comm: captureCameraHy Tainted: G W 4.14-at22 #16 [ 243.618646] Hardware name: Freescale i.MX6 Ultralite (Device Tree) [ 243.624850] task: d8049dc0 task.stack: d992e000 [ 243.629411] PC is at usb_ifnum_to_if+0x20/0x6c [ 243.633873] LR is at 0x2 [ 243.636422] pc : [] lr : [<00000002>] psr: 200f0113 [ 243.642709] sp : d992fd6c ip : c070113c fp : c0c2bbc4 [ 243.647951] r10: dde47000 r9 : 00000001 r8 : 00000000 [ 243.653196] r7 : c0485284 r6 : 00000000 r5 : ffffffb9 r4 : d803f000 [ 243.659745] r3 : 00000000 r2 : dd9e0800 r1 : 00000001 r0 : 00000000 [ 243.666295] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 243.673453] Control: 10c53c7d Table: 9876c059 DAC: 00000051 [ 243.679222] Process captureCameraHy (pid: 5056, stack limit = 0xd992e210) [ 243.686030] Stack: (0xd992fd6c to 0xd9930000) [ 243.690411] fd60: c0438b6c dda93d80 c04a1270 00000001 014000c0 [ 243.698623] fd80: c0c71ed0 00000001 00000022 d9815800 ffffffb9 00000000 c0485284 00000000 [ 243.706833] fda0: c0c2b9fc d8764840 c0c2bbc4 c04a2944 d9815aa4 d9815b78 d9815aa4 c049e378 [ 243.715046] fdc0: d9815a54 d9815b78 d9815aa4 c0497260 d9815aa4 d9815aa4 00000001 c0485284 [ 243.723256] fde0: 00000000 c0497ecc d9815bc4 d9815aa4 00000001 c049e6e4 00000001 d9815a94 [ 243.731469] fe00: d9815800 c049f618 00000001 40045612 d9815810 c048a314 e1b97061 ddf2e480 [ 243.739679] fe20: d98f3c00 d992fe88 d98f3c00 00000001 00000000 c013ba50 000000c3 ffffffff [ 243.747892] fe40: 00000000 c04f2af0 ddf2e480 40045612 00000000 00000000 00000051 d992fe88 [ 243.756102] fe60: 00000000 bea05d3c 00000001 c048a5bc d9b46540 d8764840 c048a098 00000000 [ 243.764315] fe80: 00000000 00000000 00000001 ffffffff 00000000 00000000 00004000 de2d6d80 [ 243.772525] fea0: 00000121 c0107324 d992e000 00000121 bea056b0 c04f05bc 00000000 c04f1918 [ 243.780738] fec0: d992fee0 00000000 00000042 00000000 0107a008 00000042 00000000 00000000 [ 243.788948] fee0: 00000001 00000000 00000000 d992fed8 00000000 ddf08000 00000000 00000000 [ 243.797161] ff00: 00004000 d992ff58 00000000 bea05d3c d98d6d60 d8764840 40045612 bea05d3c [ 243.805371] ff20: d992e000 00000036 00000000 c01d7bf0 00000000 c018e170 00000001 00000000 [ 243.813584] ff40: 00000672 d992ff54 0c7605ed 00000000 c0c086f8 d992ff90 00000000 00000000 [ 243.821794] ff60: 0000004e c0107324 d992e000 00000000 d8764840 00000004 d8764840 40045612 [ 243.830007] ff80: bea05d3c d992e000 00000036 c01d843c 00000720 00000000 00000000 00000036 [ 243.838219] ffa0: c0107324 c0107120 00000720 00000000 00000004 40045612 bea05d3c 40045612 [ 243.846430] ffc0: 00000720 00000000 00000000 00000036 00000000 00000000 00503000 00000000 [ 243.854640] ffe0: 00503024 bea05694 004f09e5 b6f24916 20030030 00000004 00000000 00000000 [ 243.862870] [] (usb_ifnum_to_if) from [] (usb_set_interface+0x28/0x2f8) [ 243.871272] [] (usb_set_interface) from [] (uvc_video_enable+0xec/0x12c) [ 243.879756] [] (uvc_video_enable) from [] (uvc_start_streaming+0x1c/0x44) [ 243.888326] [] (uvc_start_streaming) from [] (vb2_start_streaming+0x5c/0x150) [ 243.897245] [] (vb2_start_streaming) from [] (vb2_core_streamon+0x118/0x160) [ 243.906069] [] (vb2_core_streamon) from [] (uvc_queue_streamon+0x24/0x38) [ 243.914630] [] (uvc_queue_streamon) from [] (uvc_ioctl_streamon+0x34/0x48) [ 243.923282] [] (uvc_ioctl_streamon) from [] (__video_do_ioctl+0x27c/0x2d8) [ 243.931930] [] (__video_do_ioctl) from [] (video_usercopy+0x24c/0x4bc) [ 243.940233] [] (video_usercopy) from [] (do_vfs_ioctl+0x9c/0x8b4) [ 243.948099] [] (do_vfs_ioctl) from [] (SyS_ioctl+0x34/0x5c) [ 243.955451] [] (SyS_ioctl) from [] (ret_fast_syscall+0x0/0x54) [ 243.963057] Code: e5d2e004 e35e0000 0a00000f e5920050 (e5903000) [ 243.969321] Loading crashdump kernel... [ 243.973294] Bye!