Em 07-06-2010 13:33, Helmut Auer escreveu: > Am 24.05.2010 17:26, schrieb Martin Dauskardt: >> 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 ]--- >> --I can confirm this. Loading budget_ci from current v4l-dvb hg with kernel >> 2.6.34 causes kernel oops:
As I've answered at the other thread, there's a fix that will likely solve this bug, already merged upstream. The patch is available at: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=84b14f181a36eea6591779156ef356f8d198bbfd > > It looks to me that v4l-dvb is not really maintained anymore :( It is maintained, but Douglas had a 2-weeks trip abroad and couldn't find time to backport the patches during the trip. He is currently working to re-sync the backport tree with the upstream one. Cheers, Mauro. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
