Hi, I have successfully been running Ubuntu 9.10 on an old Pentium4 test-box. The machine has two PCI cards, both of which worked with stock 9.10 and with a slightly upgraded kernel (2.6.31-14-generic-pae and 2.6.31-15-generic-pae). These cards, have, in the past also worked on Ubuntu 6.10 so have been supported for a long time. The output on the 2.6.31-15-generic-pae gives: [ 6.173285] cx88/0: cx2388x v4l2 driver version 0.0.7 loaded [ 6.173349] cx8800 0000:02:0b.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23 [ 6.174531] cx88[0]: subsystem: 18ac:db10, board: DViCO FusionHDTV DVB-T Plus [card=21,insmod option], frontend(s): 1 [ 6.174537] cx88[0]: TV tuner type 4, Radio tuner type -1 [ 6.183548] cx88/2: cx2388x MPEG-TS Driver Manager version 0.0.7 loaded [ 6.340041] cx88[0]/0: found at 0000:02:0b.0, rev: 5, irq: 23, latency: 32, mmio: 0xef000000 [ 6.340065] IRQ 23/cx88[0]: IRQF_DISABLED is not guaranteed on shared IRQs [ 6.340191] cx88[0]/0: registered device video0 [v4l2] [ 6.340237] cx88[0]/0: registered device vbi0 [ 6.340313] cx88[0]/2: cx2388x 8802 Driver Manager [ 6.340335] cx88-mpeg driver manager 0000:02:0b.2: PCI INT A -> GSI 23 (level, low) -> IRQ 23 [ 6.340349] cx88[0]/2: found at 0000:02:0b.2, rev: 5, irq: 23, latency: 32, mmio: 0xee000000 [ 6.340358] IRQ 23/cx88[0]: IRQF_DISABLED is not guaranteed on shared IRQs [ 6.340395] cx8800 0000:02:0c.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 6.341628] cx88[1]: subsystem: 17de:a8a6, board: Conexant DVB-T reference design [card=19,insmod option], frontend(s): 1 [ 6.341635] cx88[1]: TV tuner type 4, Radio tuner type -1 [ 6.504094] cx88[1]/0: found at 0000:02:0c.0, rev: 5, irq: 20, latency: 32, mmio: 0xed000000 [ 6.504166] IRQ 20/cx88[1]: IRQF_DISABLED is not guaranteed on shared IRQs [ 6.504294] cx88[1]/0: registered device video1 [v4l2] [ 6.504342] cx88[1]/0: registered device vbi1 [ 6.506583] cx88[1]/2: cx2388x 8802 Driver Manager [ 6.506609] cx88-mpeg driver manager 0000:02:0c.2: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 6.506625] cx88[1]/2: found at 0000:02:0c.2, rev: 5, irq: 20, latency: 32, mmio: 0xec000000 [ 6.506638] IRQ 20/cx88[1]: IRQF_DISABLED is not guaranteed on shared IRQs [ 6.609088] alloc irq_desc for 18 on node -1 [ 6.609095] alloc kstat_irqs on node -1 [ 6.609108] C-Media PCI 0000:02:0d.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 [ 6.873923] EXT4-fs (sda11): internal journal on sda11:8 [ 7.011870] cx88/2: cx2388x dvb driver version 0.0.7 loaded [ 7.011877] cx88/2: registering cx8802 driver, type: dvb access: shared [ 7.011884] cx88[0]/2: subsystem: 18ac:db10, board: DViCO FusionHDTV DVB-T Plus [card=21] [ 7.011889] cx88[0]/2: cx2388x based DVB/ATSC card [ 7.011893] cx8802_alloc_frontends() allocating 1 frontend(s) [ 7.092877] ip_tables: (C) 2000-2006 Netfilter Core Team [ 7.397447] DVB: registering new adapter (cx88[0]) [ 7.397457] DVB: registering adapter 0 frontend 0 (Zarlink ZL10353 DVB-T)... [ 7.398038] cx88[1]/2: subsystem: 17de:a8a6, board: Conexant DVB-T reference design [card=19] [ 7.398046] cx88[1]/2: cx2388x based DVB/ATSC card [ 7.398050] cx8802_alloc_frontends() allocating 1 frontend(s) [ 7.434445] DVB: registering new adapter (cx88[1]) [ 7.434456] DVB: registering adapter 1 frontend 0 (Conexant CX22702 DVB-T)... In order to debug a problem with a new dual tuner USB module, I grabbed the latest v4l-dvb and built all the modules from source (sans FireTV) and installed them using the provided makefile targets. This results in the following: [ 5.831860] cx88/2: cx2388x MPEG-TS Driver Manager version 0.0.7 loaded [ 5.833100] cx88[0]: subsystem: 18ac:db10, board: DViCO FusionHDTV DVB-T Plus [card=21,insmod option], frontend(s): 1 [ 5.833107] cx88[0]: TV tuner type 4, Radio tuner type -1 [ 5.846548] cx88/0: cx2388x v4l2 driver version 0.0.7 loaded [ 5.884782] EXT4-fs (sda11): internal journal on sda11:8 [ 6.012069] BUG: unable to handle kernel NULL pointer dereference at (null) [ 6.012313] IP: [<e0db9aa6>] ir_input_free+0x16/0x40 [ir_common] [ 6.012490] *pdpt = 000000001e550001 *pde = 0000000000000000 [ 6.012725] Oops: 0000 [#1] SMP [ 6.012957] last sysfs file: /sys/devices/virtual/dmi/id/sys_vendor [ 6.013048] Modules linked in: snd_opl3_lib snd_timer x_tables snd_hwdep cx8800(+) cx8802(+) snd_mpu401_uart cx88xx ir_common i2c_algo_bit snd_rawmidi v4l2_common snd_seq_device tveeprom videodev v4l1_compat videobuf_dma_sg btcx_risc snd videobuf_core soundcore ppdev parport_pc shpchp lp intel_agp parport agpgart psmouse serio_raw e100 mii natsemi floppy [ 6.015697] [ 6.015784] Pid: 534, comm: modprobe Not tainted (2.6.31-15-generic-pae #50-Ubuntu) System Name [ 6.015886] EIP: 0060:[<e0db9aa6>] EFLAGS: 00010246 CPU: 0 [ 6.015983] EIP is at ir_input_free+0x16/0x40 [ir_common] [ 6.016013] EAX: 00000000 EBX: 00000000 ECX: ffffffed EDX: de08778c [ 6.016013] ESI: de087000 EDI: d7c60800 EBP: d81a5d38 ESP: d81a5d30 [ 6.016013] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 6.016013] Process modprobe (pid: 534, ti=d81a4000 task=decab240 task.ti=d81a4000) [ 6.016013] Stack: [ 6.016013] 00000200 de540400 d81a5d70 e0e14787 00000000 00000000 00000000 ffffffff [ 6.016013] <0> ffffffed d7c60800 d7c60800 d7c60800 df8a7000 d7c60800 d7c60a84 d7c60a84 [ 6.016013] <0> d81a5dfc e0e1018a e0e1cd7c d7c60810 00000004 ffffffff e0e1bd84 00000015 [ 6.016013] Call Trace: [ 6.016013] [<e0e14787>] ? cx88_ir_init+0x77/0x5c3 [cx88xx] [ 6.016013] [<e0e1018a>] ? cx88_core_create+0x84a/0x1130 [cx88xx] [ 6.016013] [<c03151e4>] ? ida_get_new_above+0x104/0x1a0 [ 6.016013] [<c023eb3f>] ? __sysfs_add_one+0x1f/0xc0 [ 6.016013] [<e0e10de5>] ? cx88_core_get+0x85/0xd0 [cx88xx] [ 6.016013] [<e0e8a6ed>] ? cx8802_probe+0x15/0x2cd [cx8802] [ 6.016013] [<c023e13b>] ? sysfs_addrm_start+0x5b/0xa0 [ 6.016013] [<c032c57e>] ? pci_match_device+0xbe/0xd0 [ 6.016013] [<c032c3ae>] ? local_pci_probe+0xe/0x10 [ 6.016013] [<c032d130>] ? pci_device_probe+0x60/0x80 [ 6.016013] [<c03a7a70>] ? really_probe+0x50/0x140 [ 6.016013] [<c0576b6a>] ? _spin_lock_irqsave+0x2a/0x40 [ 6.016013] [<c03a7b79>] ? driver_probe_device+0x19/0x20 [ 6.016013] [<c03a7bf9>] ? __driver_attach+0x79/0x80 [ 6.016013] [<c03a70c8>] ? bus_for_each_dev+0x48/0x70 [ 6.016013] [<c03a7939>] ? driver_attach+0x19/0x20 [ 6.016013] [<c03a7b80>] ? __driver_attach+0x0/0x80 [ 6.016013] [<c03a731f>] ? bus_add_driver+0xbf/0x2a0 [ 6.016013] [<c032d070>] ? pci_device_remove+0x0/0x40 [ 6.016013] [<c03a7e85>] ? driver_register+0x65/0x120 [ 6.016013] [<c0575a14>] ? mutex_lock+0x14/0x40 [ 6.016013] [<c032d350>] ? __pci_register_driver+0x40/0xb0 [ 6.016013] [<e0e8f03e>] ? cx8802_init+0x3e/0x40 [cx8802] [ 6.016013] [<c010112c>] ? do_one_initcall+0x2c/0x190 [ 6.016013] [<e0e8f000>] ? cx8802_init+0x0/0x40 [cx8802] [ 6.016013] [<c0175671>] ? sys_init_module+0xb1/0x1f0 [ 6.016013] [<c010336c>] ? syscall_call+0x7/0xb [ 6.016013] Code: 89 7c 24 04 c7 04 24 dc 9d db e0 e8 0b ad 7b df eb e4 8d 76 00 55 89 e5 53 83 ec 04 8b 98 ec 07 00 00 a1 dc 46 dc e0 85 c0 7f 1a <8b> 03 c7 43 04 00 00 00 00 e8 ec 90 42 df c7 03 00 00 00 00 83 [ 6.016013] EIP: [<e0db9aa6>] ir_input_free+0x16/0x40 [ir_common] SS:ESP 0068:d81a5d30 [ 6.016013] CR2: 0000000000000000 [ 6.026493] ---[ end trace 8926730ffc0a686f ]--- which is seen without any modifications to the v4l-dvb tree. I am using the standard build tools (e.g. gcc (Ubuntu 4.4.1-4ubuntu8) 4.4.1). hg identify gives: e0cd9a337600 tip and there are no available updates. Assuming we can fix this problem and my minor driver addition actually works then I will submit patches to support the variant of the USB tuner I wish to get functioning. Hopefully this is something that people with far more knowledge and skill in this area than myself can resolve. Thanks in advance. Shaun. -- 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
