I guess it is a similar problem like the one that was solved a few months ago with this patch: http://article.gmane.org/gmane.linux.drivers.video-input-infrastructure/14232 I compiled the current v4l-dvb hg against the 2.6.32 Ubuntu 10.04 kernel May 24 13:30:22 ubuntuvdr1 kernel: [ 5.629408] DVB: registering new adapter (TT-Budget C-1501 PCI) May 24 13:30:22 ubuntuvdr1 kernel: [ 5.646949] tda9887 3-0043: i2c i/o error: rc == -5 (should be 4) May 24 13:30:22 ubuntuvdr1 kernel: [ 5.649823] tda9887 3-0043: i2c i/o error: rc == -5 (should be 4) May 24 13:30:22 ubuntuvdr1 kernel: [ 5.666028] adapter has MAC addr = 00:d0:5c:c6:5a:11 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692518] Registered IR keymap rc-tt-1500 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692545] BUG: unable to handle kernel NULL pointer dereference at (null) May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692554] IP: [<f825bd7e>] ir_register_class+0x3e/0x190 [ir_core] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692566] *pde = 00000000 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692571] Oops: 0000 [#1] SMP May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692575] last sysfs file: /sys/module/ir_core/initstate May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692580] Modules linked in: rc_tt_1500 tda10021 snd_hda_codec_realtek tuner_simple tuner_types tda9887 tda8290 tuner msp3400 snd_hda_intel$ May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692659] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692663] Pid: 375, comm: modprobe Not tainted (2.6.32-22-generic #33-Ubuntu) M56S-S3 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692669] EIP: 0060:[<f825bd7e>] EFLAGS: 00010246 CPU: 0 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692677] EIP is at ir_register_class+0x3e/0x190 [ir_core] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692681] EAX: 00000000 EBX: f6375000 ECX: 00000000 EDX: 00000100 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692686] ESI: f4fa6000 EDI: 00000000 EBP: f61d5d78 ESP: f61d5d4c May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692691] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692697] Process modprobe (pid: 375, ti=f61d4000 task=f61b6680 task.ti=f61d4000) May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692704] Stack: May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692707] 00000246 f825ba47 c24054e0 f825ba47 001d5d64 00000128 f4fa6000 0000003f May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692717] <0> faee9068 00000027 f4fa6000 f61d5db0 f825bb7c 0000009f 00000000 f8ce32ef May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692728] <0> c0588f82 f825cc11 00000296 f637513c f6375120 f6375000 f6827000 f4fa6000 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692741] Call Trace: May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692750] [<f825ba47>] ? __ir_input_register+0x167/0x350 [ir_core] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692759] [<f825ba47>] ? __ir_input_register+0x167/0x350 [ir_core] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692769] [<f825bb7c>] ? __ir_input_register+0x29c/0x350 [ir_core] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692779] [<c0588f82>] ? printk+0x1d/0x23 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692789] [<f8ce1153>] ? budget_ci_attach+0x193/0xd80 [budget_ci] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692800] [<f81ffeac>] ? saa7146_init_one+0x7dc/0x860 [saa7146] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692811] [<c01078d0>] ? dma_generic_alloc_coherent+0x0/0xc0 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692821] [<c0363883>] ? local_pci_probe+0x13/0x20 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692827] [<c0364688>] ? pci_device_probe+0x68/0x90 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692835] [<c03e688d>] ? really_probe+0x4d/0x140 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692843] [<c03ed19e>] ? pm_runtime_barrier+0x4e/0xc0 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692850] [<c03e69bc>] ? driver_probe_device+0x3c/0x60 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692857] [<c03e6a61>] ? __driver_attach+0x81/0x90 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692864] [<c03e5ea3>] ? bus_for_each_dev+0x53/0x80 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692871] [<c03e675e>] ? driver_attach+0x1e/0x20 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692877] [<c03e69e0>] ? __driver_attach+0x0/0x90 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692884] [<c03e6125>] ? bus_add_driver+0xd5/0x280 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692890] [<c03645c0>] ? pci_device_remove+0x0/0x40 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692897] [<c03e6d5a>] ? driver_register+0x6a/0x130 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692903] [<c03648c5>] ? __pci_register_driver+0x45/0xb0 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692913] [<f81fed63>] ? saa7146_register_extension+0x53/0x90 [saa7146] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692923] [<f8ce700d>] ? budget_ci_init+0xd/0xf [budget_ci] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692929] [<c0101131>] ? do_one_initcall+0x31/0x190 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692937] [<f8ce7000>] ? budget_ci_init+0x0/0xf [budget_ci] May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692945] [<c0182340>] ? sys_init_module+0xb0/0x210 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692951] [<c01033ec>] ? syscall_call+0x7/0xb May 24 13:30:22 ubuntuvdr1 kernel: [ 5.692956] Code: 00 89 c6 8d 80 a0 07 00 00 e8 bf a7 18 c8 ba 00 01 00 00 89 c3 b8 0c d4 25 f8 e8 6e ec 0e c8 89 c7 85 ff 78 6f 8b 83 44 01 $ May 24 13:30:22 ubuntuvdr1 kernel: [ 5.693003] EIP: [<f825bd7e>] ir_register_class+0x3e/0x190 [ir_core] SS:ESP 0068:f61d5d4c May 24 13:30:22 ubuntuvdr1 kernel: [ 5.693015] CR2: 0000000000000000 May 24 13:30:22 ubuntuvdr1 kernel: [ 5.693020] ---[ end trace 2c915ef882a2f862 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
