2009/6/23 jon bird <news@xxxxxxxxxxxxxxxxxxxx>: > I replaced my stock Linux V4l/dvb drivers with the versions from cvs on > linuxtv.org whilst attempting to resolve problems with my Nova-T stick > (a red herring as it happens). However what I've discovered since is > that they argue quite badly with drivers for the 2 webcams I have (of > course the webcam drivers themselves may be at fault here but I thought > it worth pointing out....). > > Replacing the linux kernel modules (2.6.26) resolves the problem and > both these and the DVB side work. > > here's the log from the snapshot I took 2 days ago: > > Jun 22 17:17:55 fridge kernel: ------------[ cut here ]------------ > Jun 22 17:17:55 fridge kernel: WARNING: at > /opt2/data/kernel/v4l-dvb-6c50c4b2ef70/v4l/v4l2-dev.c:434 > video_register_device_index+0x3a/0x354 [videodev]() > Jun 22 17:17:55 fridge kernel: Modules linked in: gspca(+) videodev > v4l1_compat af_packet nfsd exportfs usbserial ppdev parport_pc lp > parport snd_pcm_oss snd_mixer_oss snd_via82xx snd_ac97_codec ac97_bus > snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi > snd_seq_device snd soundcore xt_TCPMSS xt_DSCP ipt_MASQUERADE ipt_LOG > ipt_REDIRECT xt_state joydev evdev dvb_usb_dib0700 dib7000p dib7000m > dvb_usb dvb_core firmware_class dib3000mc dibx000_common dib0070 > uhci_hcd ohci_hcd ehci_hcd usbcore ipv6 8139too mii ipt_REJECT > iptable_mangle iptable_nat nf_nat iptable_filter nf_conntrack_ipv4 > nf_conntrack ip_tables mt2060 i2c_core sata_via libata dock 8250 > serial_core > Jun 22 17:17:55 fridge kernel: Pid: 3853, comm: modprobe Not tainted > 2.6.26 #9 > Jun 22 17:17:55 fridge kernel: [warn_on_slowpath+62/91] > warn_on_slowpath+0x3e/0x5b > Jun 22 17:17:55 fridge kernel: [<c0117690>] warn_on_slowpath+0x3e/0x5b > Jun 22 17:17:55 fridge kernel: [__wake_up+15/21] __wake_up+0xf/0x15 > Jun 22 17:17:55 fridge kernel: [<c0114aa9>] __wake_up+0xf/0x15 > Jun 22 17:17:55 fridge kernel: [wake_up_klogd+43/45] > wake_up_klogd+0x2b/0x2d > Jun 22 17:17:55 fridge kernel: [<c0118109>] wake_up_klogd+0x2b/0x2d > Jun 22 17:17:55 fridge kernel: [<f8982405>] > usb_internal_control_msg+0x54/0x61 [usbcore] > Jun 22 17:17:55 fridge kernel: [<f8982490>] usb_control_msg+0x7e/0x8b > [usbcore] > Jun 22 17:17:55 fridge kernel: [printk+14/17] printk+0xe/0x11 > Jun 22 17:17:55 fridge kernel: [<c0117cdc>] printk+0xe/0x11 > Jun 22 17:17:55 fridge kernel: [<f8ca5a6d>] > spca5xx_getcapability+0xa2/0xad [gspca] > Jun 22 17:17:55 fridge kernel: [<f8c353ae>] > video_register_device_index+0x3a/0x354 [videodev] > Jun 22 17:17:55 fridge kernel: [<f8c35372>] > video_register_device+0x7/0x9 [videodev] > Jun 22 17:17:55 fridge kernel: [<f8caa441>] spca5xx_probe+0x1f4/0x287 > [gspca] > Jun 22 17:17:55 fridge kernel: [<f8983b95>] > usb_probe_interface+0xb3/0xde [usbcore] > Jun 22 17:17:55 fridge kernel: [__driver_attach+0/85] > __driver_attach+0x0/0x55 > Jun 22 17:17:55 fridge kernel: [<c0227384>] __driver_attach+0x0/0x55 > Jun 22 17:17:55 fridge kernel: [really_probe+112/226] > really_probe+0x70/0xe2 > Jun 22 17:17:55 fridge kernel: [<c022725d>] really_probe+0x70/0xe2 > Jun 22 17:17:55 fridge kernel: [driver_probe_device+54/62] > driver_probe_device+0x36/0x3e > Jun 22 17:17:55 fridge kernel: [<c022731a>] > driver_probe_device+0x36/0x3e > Jun 22 17:17:55 fridge kernel: [__driver_attach+55/85] > __driver_attach+0x37/0x55 > Jun 22 17:17:55 fridge kernel: [<c02273bb>] __driver_attach+0x37/0x55 > Jun 22 17:17:55 fridge kernel: [bus_for_each_dev+53/89] > bus_for_each_dev+0x35/0x59 > Jun 22 17:17:55 fridge kernel: [<c02267b6>] bus_for_each_dev+0x35/0x59 > Jun 22 17:17:55 fridge kernel: [driver_attach+17/19] > driver_attach+0x11/0x13 > Jun 22 17:17:55 fridge kernel: [<c02273ea>] driver_attach+0x11/0x13 > Jun 22 17:17:55 fridge kernel: [__driver_attach+0/85] > __driver_attach+0x0/0x55 > Jun 22 17:17:55 fridge kernel: [<c0227384>] __driver_attach+0x0/0x55 > Jun 22 17:17:55 fridge kernel: [bus_add_driver+138/306] > bus_add_driver+0x8a/0x132 > Jun 22 17:17:55 fridge kernel: [<c0226cf4>] bus_add_driver+0x8a/0x132 > Jun 22 17:17:55 fridge kernel: [driver_register+104/136] > driver_register+0x68/0x88 > Jun 22 17:17:55 fridge kernel: [<c0227716>] driver_register+0x68/0x88 > Jun 22 17:17:55 fridge kernel: [<f898409b>] > usb_register_driver+0x52/0x9c [usbcore] > Jun 22 17:17:55 fridge kernel: [<f8b37014>] usb_spca5xx_init+0x14/0x31 > [gspca] > Jun 22 17:17:55 fridge kernel: [<c0131660>] sys_init_module+0x84/0x173 > Jun 22 17:17:55 fridge kernel: [syscall_call+7/11] syscall_call+0x7/0xb > Jun 22 17:17:55 fridge kernel: [<c0102a22>] syscall_call+0x7/0xb > Jun 22 17:17:55 fridge kernel: ======================= > Jun 22 17:17:55 fridge kernel: ---[ end trace be190c3dbfd1c67f ]--- > > > this happens with the spca5xx webcam driver and the old Logitech > quickcam express driver. > > > -- > == jon bird - software engineer > == <reply to address _may_ be invalid, real mail below> > == <reduce rsi, stop using the shift key> > == posted as: news 'at' onastick 'dot' clara.co.uk > > > _______________________________________________ > linux-dvb users mailing list > For V4L/DVB development, please use instead linux-media@xxxxxxxxxxxxxxx > linux-dvb@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb > I can confirm this behaviour on gspcaxx and spcaxx drivers since several years ago. Román -- 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
