Hello The bug is still exist in a Ubuntu 10.04 LTS with kernel 2.6.32 [ 58.540239] saa7146: register extension 'budget dvb'. [ 58.540263] budget dvb 0000:07:02.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 58.540303] IRQ 17/: IRQF_DISABLED is not guaranteed on shared IRQs [ 58.540323] saa7146: found saa7146 @ mem ffffc900006be000 (revision 1, irq 17) (0x13c2,0x101c). [ 58.540327] saa7146 (0): dma buffer size 192512 [ 58.540329] DVB: registering new adapter (TT-Budget S2-1600 PCI) [ 58.598137] adapter has MAC addr = 00:d0:5c:cc:a2:f6 [ 59.079969] cfg80211: World regulatory domain updated: [ 59.079972] (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 59.079974] (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 59.079977] (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 59.079978] (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 59.079981] (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 59.079983] (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 59.179903] DVB: Unable to find symbol stv090x_attach() [ 59.179911] BUG: unable to handle kernel NULL pointer dereference at 00000000000000b0 [ 59.179913] IP: [<ffffffffa01f7e6c>] dvb_frontend_detach+0xc/0x90 [dvb_core] [ 59.179921] PGD 1370c7067 PUD 133e09067 PMD 0 [ 59.179924] Oops: 0000 [#1] SMP [ 59.179925] last sysfs file: /sys/module/snd_seq_device/initstate [ 59.179928] CPU 0 [ 59.179929] Modules linked in: snd_seq_midi_event snd_seq ath5k(+) budget(+) budget_core mac80211 ath saa7146 snd_timer uvcvideo snd_seq_device ttpci_eeprom cfg80211 videodev snd asus_atk0110 led_class v4l1_compat dvb_core v4l2_compat_ioctl32 soundcore snd_page_alloc squashfs aufs nls_cp437 isofs dm_raid45 xor fbcon tileblit font bitblit softcursor vga16fb vgastate usbhid hid nouveau ttm drm_kms_helper ohci1394 intel_agp ieee1394 drm i2c_algo_bit r8169 mii ahci [ 59.179948] Pid: 1616, comm: modprobe Not tainted 2.6.32-21-generic #32-Ubuntu System Product Name [ 59.179949] RIP: 0010:[<ffffffffa01f7e6c>] [<ffffffffa01f7e6c>] dvb_frontend_detach+0xc/0x90 [dvb_core] [ 59.179953] RSP: 0018:ffff880138a5bba8 EFLAGS: 00010246 [ 59.179955] RAX: 0000000000000041 RBX: ffff880139823000 RCX: 000000000000001e [ 59.179956] RDX: 0000000000000000 RSI: 0000000000000082 RDI: 0000000000000000 [ 59.179957] RBP: ffff880138a5bbb8 R08: 00000000ffffffff R09: 0000000000000000 [ 59.179958] R10: 0000000000000005 R11: 0000000000000000 R12: ffff88013ad5a200 [ 59.179960] R13: ffffffffa0312cc0 R14: 0000000000000000 R15: ffff88013ad5a294 [ 59.179961] FS: 00007f95687d6700(0000) GS:ffff880028200000(0000) knlGS:0000000000000000 [ 59.179963] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 59.179964] CR2: 00000000000000b0 CR3: 0000000133e0b000 CR4: 00000000000006f0 [ 59.179965] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.179966] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 59.179968] Process modprobe (pid: 1616, threadinfo ffff880138a5a000, task ffff8801376496f0) [ 59.179969] Stack: [ 59.179970] ffff880139823000 ffff88013ad5a200 ffff880138a5bc28 ffffffffa0310bbe [ 59.179972] <0> ffffffffa0312d60 ffff880139823810 ffff880138a5bc28 ffffffffa0307d50 [ 59.179974] <0> ffff8801398233a8 ffff8801398230f8 0000000000000000 ffff880139823000 [ 59.179977] Call Trace: [ 59.179980] [<ffffffffa0310bbe>] frontend_init+0x91e/0xd90 [budget] [ 59.179983] [<ffffffffa0307d50>] ? ttpci_budget_init+0x2f0/0x470 [budget_core] [ 59.179986] [<ffffffffa0311aae>] budget_attach+0x9e/0x150 [budget] [ 59.179989] [<ffffffffa02aa296>] saa7146_init_one+0x8c6/0x9b0 [saa7146] [ 59.179994] [<ffffffff812ce6f7>] local_pci_probe+0x17/0x20 [ 59.179996] [<ffffffff812cea19>] __pci_device_probe+0xe9/0xf0 [ 59.179999] [<ffffffff812b358a>] ? kobject_get+0x1a/0x30 [ 59.180002] [<ffffffff81364ea9>] ? get_device+0x19/0x20 [ 59.180004] [<ffffffff812cf847>] pci_device_probe+0x37/0x60 [ 59.180006] [<ffffffff81368f85>] really_probe+0x65/0x170 [ 59.180008] [<ffffffff813690d5>] driver_probe_device+0x45/0x70 [ 59.180010] [<ffffffff81369100>] ? __driver_attach+0x0/0xa0 [ 59.180011] [<ffffffff8136919b>] __driver_attach+0x9b/0xa0 [ 59.180013] [<ffffffff81369100>] ? __driver_attach+0x0/0xa0 [ 59.180015] [<ffffffff813683e8>] bus_for_each_dev+0x68/0x90 [ 59.180016] [<ffffffff81368dfe>] driver_attach+0x1e/0x20 [ 59.180018] [<ffffffff813686be>] bus_add_driver+0xde/0x280 [ 59.180020] [<ffffffff813694d0>] driver_register+0x80/0x150 [ 59.180022] [<ffffffff8153e0e0>] ? printk+0x41/0x49 [ 59.180024] [<ffffffff812cfad6>] __pci_register_driver+0x56/0xd0 [ 59.180027] [<ffffffffa0316000>] ? budget_init+0x0/0x12 [budget] [ 59.180029] [<ffffffffa02a8f91>] saa7146_register_extension+0x61/0xa0 [saa7146] [ 59.180032] [<ffffffffa0316010>] budget_init+0x10/0x12 [budget] [ 59.180035] [<ffffffff8100a04c>] do_one_initcall+0x3c/0x1a0 [ 59.180040] [<ffffffff810a17ef>] sys_init_module+0xdf/0x260 [ 59.180043] [<ffffffff810131b2>] system_call_fastpath+0x16/0x1b [ 59.180044] Code: 0e 89 c8 c9 29 f0 c3 0f 1f 84 00 00 00 00 00 8d 81 40 42 0f 00 c9 29 f0 c3 66 0f 1f 44 00 00 55 48 89 e5 41 54 53 0f 1f 44 00 00 <48> 8b 87 b0 00 00 00 48 89 fb 48 85 c0 74 0e ff d0 48 8b bb b0 [ 59.180061] RIP [<ffffffffa01f7e6c>] dvb_frontend_detach+0xc/0x90 [dvb_core] [ 59.180064] RSP <ffff880138a5bba8> [ 59.180065] CR2: 00000000000000b0 [ 59.180067] ---[ end trace be546a77b329611b ]--- Andrey Gangan -- 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