i just ported linphone 2.0.1 on arm9 (kernel 2.6 ,oss)
> i can make call between arm and pc > but after dialogue established ,i get following error in linphone and it > crashes out > > linphonec> linphonec> Connected. > linphonec> Unable to handle kernel NULL pointer dereference at virtual > address 00000000 > pgd = c3dec000 > [00000000] *pgd=00de6031, *pte=00000000, *ppte=00000000 > Internal error: Oops: 17 [#1] > CPU: 0 > PC is at i2c_smbus_write_byte_data+0x10/0x4c > LR is at WM8978_WriteData+0x2c/0x38 > pc : [<c01711c0>] lr : [<c0175a48>] Not tainted > sp : c031fe40 ip : c031fe88 fp : c031fe84 > r10: 00000000 r9 : c031e000 r8 : c001ff68 > r7 : c092f7a0 r6 : c01735c8 r5 : c0238be4 r4 : f0009000 > r3 : c0238c14 r2 : 00000000 r1 : 00000000 r0 : 00000000 > Flags: nzCv IRQs on FIQs on Mode SVC_32 Segment user > Control: 5317F Table: 03DEC000 DAC: 00000015 > Process linphonec (pid: 809, stack limit = 0xc031e1a0) > Stack: (0xc031fe40 to 0xc0320000) > fe40: 00000000 c0cdb240 c0e561b8 c092f7a0 c031e000 00000000 c031fe7c > c031fe68 > fe60: c01cffe0 c01cf950 c0e561b8 00000000 c031fe8c c031fe80 c031fe94 > c031fe88 > fe80: c0175a48 c01711c0 c031feac c031fe98 c0175cac c0175a2c 00003e80 > f0009000 > fea0: c031fecc c031feb0 c0175888 c0175ca0 c031fee4 c0238b14 00000002 > bdfffd48 > fec0: c031fee4 c031fed0 c0173410 c01757ec 00000003 00000002 c031ff2c > c031fee8 > fee0: c01747dc c01733b8 c08e2bcc 00000000 f0000000 c031e000 f0000000 > c022fb00 > ff00: 00000003 00000002 00008000 00010000 c092f7a0 bdfffd48 40045010 > c092f7a0 > ff20: c031ff4c c031ff30 c0081654 c0174414 c001fa90 0000000c c092f7a0 > bdfffd48 > ff40: c031ff7c c031ff50 c008192c c00815e8 c0045005 c092f7a0 c001ff68 > 0000000c > ff60: bdfffd48 40045010 c001ff68 c031e000 c031ffa4 c031ff80 c0081990 > c0081680 > ff80: c00815d0 00000001 bdfffd54 0000000c 0012b288 00000036 00000000 > c031ffa8 > ffa0: c001fdc0 c0081960 bdfffd54 0000000c 0000000c 40045010 bdfffd48 > bdfffc9c > ffc0: bdfffd54 0000000c 0012b288 00000036 00003e80 bdfffd50 00000010 > 00000000 > ffe0: 0001adcc bdfffc80 00011984 000dfb98 60000010 0000000c c5a7b83a > 494f713e > Backtrace: > [<c01711b0>] (i2c_smbus_write_byte_data+0x0/0x4c) from [<c0175a48>] > (WM8978_WriteData+0x2c /0x38) > [<c0175a1c>] (WM8978_WriteData+0x0/0x38) from [<c0175cac>] > (WM8978_DAC_Setup+0x1c/0xe0) > [<c0175c90>] (WM8978_DAC_Setup+0x0/0xe0) from [<c0175888>] > (i2sStartPlay+0xac/0xe4) > r4 = F0009000 > [<c01757dc>] (i2sStartPlay+0x0/0xe4) from [<c0173410>] > (wb_audio_start_play+0x68/0xa8) > r6 = BDFFFD48 r5 = 00000002 r4 = C0238B14 > [<c01733a8>] (wb_audio_start_play+0x0/0xa8) from [<c01747dc>] > (wb_dsp_ioctl+0x3d8/0x46c) > r5 = 00000002 r4 = 00000003 > [<c0174404>] (wb_dsp_ioctl+0x0/0x46c) from [<c0081654>] > (do_ioctl+0x7c/0x98) > r7 = C092F7A0 r6 = 40045010 r5 = BDFFFD48 r4 = C092F7A0 > [<c00815d8>] (do_ioctl+0x0/0x98) from [<c008192c>] (vfs_ioctl+0x2bc/0x2e0) > r6 = BDFFFD48 r5 = C092F7A0 r4 = 0000000C > [<c0081670>] (vfs_ioctl+0x0/0x2e0) from [<c0081990>] (sys_ioctl+0x40/0x64) > r9 = C031E000 r8 = C001FF68 r6 = 40045010 r5 = BDFFFD48 > r4 = 0000000C > [<c0081950>] (sys_ioctl+0x0/0x64) from [<c001fdc0>] > (ret_fast_syscall+0x0/0x2c) > r7 = 00000036 r6 = 0012B288 r5 = 0000000C r4 = BDFFFD54 > Code: e1a0c00d e92dd800 e24cb004 e24dd038 (e1d0c0b0) > Segmentation fault >
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