Hi to all, On DM6446 EVM I have succesfully load modules for davinci_vpfe with the below command "modprobe davinci_capture device_type=0" and then run ./prev_vga_example which captures data from my MT9V113 sensor and displays on my 4.3" LCD.
While I am trying to add resizer function to the prev_vga_example application I got a "Segmentation Fault". After that I can not load modules again with "modprobe davinci_capture device_type=0". There is no change on the modules, kernel and filesys ;only application changes but I can not load modules which gives the below error: [email protected]:/opt/dvsdk/Leopard_imaging# ./load_modules.sh kobject_register failed for vpfe (-17) Unable to handle kernel NULL pointer dereference at virtual address 00000070 pgd = c5300000 [00000070] *pgd=852da031, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] Modules linked in: davinci_capture mt9t001 tvp5146 CPU: 0 PC is at vpfe_init+0x228/0x674 [davinci_capture] LR is at bus_add_driver+0x6c/0x12c pc : [<bf00c650>] lr : [<c0169f44>] Not tainted sp : c6c49f40 ip : c6c49f18 fp : c6c49f74 r10: 003f4800 r9 : bf00fc04 r8 : 00000000 r7 : bf00fc14 r6 : bf00fc08 r5 : 003f47ff r4 : 00000003 r3 : 00000000 r2 : bf00fc00 r1 : c6c48000 r0 : ffffffef Flags: NzCv IRQs on FIQs on Mode SVC_32 Segment user Control: 5317F Table: 85300000 DAC: 00000015 Process modprobe (pid: 1066, stack limit = 0xc6c481a0) Stack: (0xc6c49f40 to 0xc6c4a000) 9f40: c003c55c c6c48000 c6c48000 bf00fb00 c02d3ff0 c6c48000 c02d3fe0 00000000 9f60: c6c48000 00000002 c6c49fa4 c6c49f78 c00681ec bf00c438 4b1fb5ea 00009190 9f80: 00000000 00000000 00000080 c0036154 c6c48000 00900080 00000000 c6c49fa8 9fa0: c00359c0 c006802c 00009190 00000000 4012d000 00007cf4 00015490 00015490 9fc0: 00009190 00000000 00000000 00015210 00015270 00000000 4012d000 0001527c 9fe0: 000148b4 befff98c 0000a070 400d074c 60000010 4012d000 00000010 00000000 Backtrace: [<bf00c428>] (vpfe_init+0x0/0x674 [davinci_capture]) from [<c00681ec>] (sys_init_module+0x1d0/0x3e0) [<c006801c>] (sys_init_module+0x0/0x3e0) from [<c00359c0>] (ret_fast_syscall+0x0/0x2c) Code: e3500000 0a00000b e59f2408 e5923000 (e5931070) ./load_modules.sh: line 1: 1066 Segmentation fault modprobe davinci_capture device_type=0 What may be the reason for the Segmentation fault during modprobe? Ferhat
_______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
