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root@var-som-mx6:~# modprobe virtual_fb                                                                                 
Segmentation fault

[   94.754774] Console: switching to colour frame buffer device 16x16
[   94.754809] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[   94.754814] pgd = d9b54000
[   94.754817] [00000000] *pgd=00000000
[   94.754831] Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM
[   94.754835] Modules linked in: virtual_fb(O+) uvcvideo mxc_v4l2_capture ipu_bg_overlay_sdc ipu_still ipu_prp_enc ipu_csi_enc ipu_fg_overlay_sdc ahci_imx libahci_platform libahci ov5640_camera_mipi_int v4l2_int_device imx_sdma mxc_dcic virt_dma p2_shutdown(O) galcore(O)
[   94.754887] CPU: 2 PID: 851 Comm: modprobe Tainted: G           O    4.14.78-mx6+ge692c3062368 #1
[   94.754891] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[   94.754896] task: d9bf8000 task.stack: d9776000
[   94.754903] PC is at 0x0
[   94.754915] LR is at soft_cursor+0x184/0x1f4
[   94.754920] pc : [<00000000>]    lr : [<80470514>]    psr: 60010013
[   94.754925] sp : d9777b68  ip : d898a007  fp : d9cc34b8
[   94.754929] r10: d898a000  r9 : 00000001  r8 : 00000001
[   94.754934] r7 : d99d5c00  r6 : 00000008  r5 : d9777ba8  r4 : d9cc3480
[   94.754938] r3 : 00000000  r2 : d9cc34c0  r1 : d9cc3480  r0 : d99d5c00
[   94.754945] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   94.754950] Control: 10c53c7d  Table: 69b5404a  DAC: 00000051
[   94.754955] Process modprobe (pid: 851, stack limit = 0xd9776210)
[   94.754961] Stack: (0xd9777b68 to 0xd9778000)
[   94.754969] 7b60:                   00000008 80e0f864 80b307c8 00000000 d9dbc800 d9dbc800
[   94.754978] 7b80: d9777ba8 d9cc33c0 d9cc33c7 d99d5c00 80937b80 00000000 00000001 8046fe10
[   94.754987] 7ba0: 00000002 00000000 0000003b 00000001 d9cc33c0 00000000 00000078 00000068
[   94.754995] 7bc0: 00000008 00000008 00000007 00000000 80ed0101 80937b80 80ed0178 80874130
[   94.755004] 7be0: ffffffff 80168888 60010013 60010013 00000023 d8008800 00000000 d99d5c00
[   94.755012] 7c00: 8046fab4 00000002 00000769 00000007 80ed0178 8046cf78 00000007 00000000
[   94.755021] 7c20: d8008800 80e31b38 80ed0114 80e7638c 00000001 80b248a0 00000000 804dafb4
[   94.755029] 7c40: d8008800 00000000 80ed0114 804dc254 00000001 801702fc 80b248a0 00000000
[   94.755038] 7c60: 00000000 80ed0114 00000001 00000001 80b248a0 804dce7c 00000010 8053194c
[   94.755046] 7c80: 80e31b50 00000000 0000003e 00000000 80ed021c 80ed0234 00000001 80ed0130
[   94.755054] 7ca0: 80943fb4 00000000 00000000 00000000 0000003e 00000001 80ed0734 804dd28c
[   94.755063] 7cc0: 80e31b50 80b30724 00000001 80911b88 d9871420 80ec984c 80e2119c d9777d40
[   94.755071] 7ce0: 00000005 00000000 00000000 d99d5e24 d99d5e24 8046c008 ffffffff 80e21f4c
[   94.755081] 7d00: d9777d40 8014836c 00000005 80e210ac d9777d40 80e047ac d99d5c0c 80148b6c
[   94.755090] 7d20: 00000000 80874130 d99d5c00 00000000 80ec9844 80463530 80b24488 00000000
[   94.755098] 7d40: d99d5c00 808740dc 00000000 00000000 00000080 00000080 00000000 00000000
[   94.755106] 7d60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000020
[   94.755115] 7d80: d99d5c00 7f12d000 00000001 7f12d280 7f12c0fc d99d5c34 00010001 7f130190
[   94.755123] 7da0: 00000000 00000000 00000080 00000080 00000000 00000000 00000000 00000000
[   94.755131] 7dc0: 00000000 00000000 00000000 00000000 00000000 00000020 d9dbda00 ffffe000
[   94.755140] 7de0: 7f130000 00000000 7f12d080 d9cc3de4 00000001 00000000 00000028 80101938
[   94.755148] 7e00: d8676000 00000004 d8676018 d8185400 7f12d0c8 00000000 dbd3c9bc 80d694c8
[   94.755156] 7e20: 00000000 80e70d40 80e70d40 801d161c d9cc3800 f1bc8000 00000001 0000000c
[   94.755165] 7e40: 7f12d080 00000001 7f12d080 00000001 d9cc3880 7f12d080 d9cc3de4 8019dd08
[   94.755175] 7e60: d9cc3de4 8020500c d9777f50 d9777f50 00000001 d9cc3dc0 7f12d080 801a0020
[   94.755184] 7e80: 7f12d08c 00007fff 7f12d080 8019ca78 7f12d0c8 8019c4b0 7f12d23c 7f12c108
[   94.755193] 7ea0: 7f12d1b0 80b9585c 809038b4 80af4dac 80af4c70 ffffe000 7f000000 000021f4
[   94.755204] 7ec0: 00000000 d8b82b40 d9777f48 00000000 00000000 00000000 00000000 00000000
[   94.755212] 7ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   94.755220] 7f00: 00000000 00000000 7fffffff 00000000 00000003 0049fb7c 0000017b 80107b44
[   94.755229] 7f20: d9776000 0000017b 00d20430 801a0494 7fffffff 00000000 00000003 00000000
[   94.755238] 7f40: 00000000 f1bc8000 000021f4 00000000 f1bc8886 f1bc8000 000021f4 f1bc9d94
[   94.755246] 7f60: f1bc9c80 f1bc96e4 00003000 00003220 00000000 00000000 00000000 0000186c
[   94.755254] 7f80: 00000019 0000001a 00000014 00000011 0000000d 00000000 00000000 00000000
[   94.755265] 7fa0: 00000000 80107940 00000000 00000000 00000003 0049fb7c 00000000 00040000
[   94.755273] 7fc0: 00000000 00000000 00000000 0000017b 00000000 00000000 7eee1c34 00d20430
[   94.755281] 7fe0: 7eee0820 7eee0810 00498875 76ef4e12 40010030 00000003 00000000 00000000
[   94.755302] [<80470514>] (soft_cursor) from [<8046fe10>] (bit_cursor+0x35c/0x4c4)
[   94.755313] [<8046fe10>] (bit_cursor) from [<8046cf78>] (fbcon_cursor+0x13c/0x15c)
[   94.755331] [<8046cf78>] (fbcon_cursor) from [<804dafb4>] (hide_cursor+0x38/0xa0)
[   94.755344] [<804dafb4>] (hide_cursor) from [<804dc254>] (redraw_screen+0x118/0x228)
[   94.755358] [<804dc254>] (redraw_screen) from [<804dce7c>] (do_bind_con_driver+0x340/0x3ac)
[   94.755370] [<804dce7c>] (do_bind_con_driver) from [<804dd28c>] (do_take_over_console+0x150/0x1b8)
[   94.755381] [<804dd28c>] (do_take_over_console) from [<8046c008>] (do_fbcon_takeover+0x74/0xd4)
[   94.755396] [<8046c008>] (do_fbcon_takeover) from [<8014836c>] (notifier_call_chain+0x48/0x84)
[   94.755409] [<8014836c>] (notifier_call_chain) from [<80148b6c>] (blocking_notifier_call_chain+0x50/0x68)
[   94.755426] [<80148b6c>] (blocking_notifier_call_chain) from [<80463530>] (register_framebuffer+0x1e0/0x2b0)
[   94.755448] [<80463530>] (register_framebuffer) from [<7f130190>] (init_module+0x190/0x1000 [virtual_fb])
[   94.755476] [<7f130190>] (init_module [virtual_fb]) from [<80101938>] (do_one_initcall+0x44/0x170)
[   94.755489] [<80101938>] (do_one_initcall) from [<8019dd08>] (do_init_module+0x60/0x230)
[   94.755500] [<8019dd08>] (do_init_module) from [<801a0020>] (load_module+0x20e0/0x2348)
[   94.755509] [<801a0020>] (load_module) from [<801a0494>] (SyS_finit_module+0xa4/0xbc)
[   94.755520] [<801a0494>] (SyS_finit_module) from [<80107940>] (ret_fast_syscall+0x0/0x54)
[   94.755529] Code: bad PC value
[   94.755536] ---[ end trace 8f217d13d61f3767 ]---