Yes,<br>soft disconnect caused by something in the USB communication chain, exactly what I donīt know.<br>Try a later or latest version of the dvb drivers or even start with a newer kernel and then newer dvb.<br>Also check cables and other sources of interference.
<br><br>Search the archive for nova-t 500 and there will be al lot of threads about soft disconnects.<br><br><br>/Henrik<br><br><div><span class="gmail_quote">On 3/14/07, <b class="gmail_sendername">Benjamin Gillam</b> <
<a href="mailto:bsg104@soton.ac.uk">bsg104@soton.ac.uk</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">My card has not been (physically) disconnected from my computer for over 5
<br>weeks, whilst this crash happened yesterday. Is it perhaps a "soft" disconnect<br>(not sure of correct term)? If so, what can I do to prevent it from "soft"<br>disconnecting in future? Is it issue with the card, or my computers USB ports,
<br>or USB controller chipset, or what? Any ideas gratefully received!<br><br>Kind regards, and thank you for your fast response,<br><br>Benjie Gillam<br><br>Henrik Beckman wrote:<br>> Hi,<br>><br>> [17267534.120000
] usb 1-3: USB disconnect, address 2<br>> [17267534.120000] dvb-usb: bulk message failed: -22 (1/-909000848)<br>> [17267534.124000] dvb-usb: WideView WT-220U PenType Receiver<br>> (Typhoon/Freecom)<br>> successfully deinitialized and disconnected.
<br>><br>> Your DVB card is disconnected and that isnīt handled gracefully, DVB<br>> doesnīt handle hotplug.<br>> Then your mythbackend bites the dust. This happens when there is a<br>> disconnct during use, the disconnect is the problem.
<br>><br>> For someone to come with something useful, lsusb, kernelversion and<br>> hardware information probably need to be included, but Iīm no expert.<br>><br>> /Henrik<br>><br>><br>><br>><br>
><br>><br>> On 3/13/07, *Benjamin Gillam* <<a href="mailto:bsg104@soton.ac.uk">bsg104@soton.ac.uk</a><br>> <mailto:<a href="mailto:bsg104@soton.ac.uk">bsg104@soton.ac.uk</a>>> wrote:<br>><br>> Why am I getting these random kernel Oops? Is it DVB's fault or
<br>> something else?<br>> I have no knowledge of DVB or kernel internals...<br>><br>> Kind regards,<br>><br>> Benjie.<br>><br>><br>> [17267534.120000] ehci_hcd 0000:00:10.4 : fatal error
<br>> [17267534.120000] ehci_hcd 0000:00:10.4: HC died; cleaning up<br>> [17267534.120000] usb 1-3: USB disconnect, address 2<br>> [17267534.120000] dvb-usb: bulk message failed: -22 (1/-909000848)<br>
> [17267534.124000 ] dvb-usb: WideView WT-220U PenType Receiver<br>> (Typhoon/Freecom)<br>> successfully deinitialized and disconnected.<br>> [17267534.132000] BUG: unable to handle kernel paging request at
<br>> virtual address<br>> 2d31005f<br>> [17267534.132000 ] printing eip:<br>> [17267534.132000] f8d89b7e<br>> [17267534.132000] *pde = 00000000<br>> [17267534.132000] Oops: 0000 [#1]
<br>> [17267534.132000] SMP<br>> [17267534.132000] Modules linked in: lirc_serial binfmt_misc ipt_TCPMSS<br>> xt_tcpudp ip_nat_irc ip_nat_ftp iptable_nat cpufreq_userspace<br>> cpufreq_stats<br>
> freq_table cpufreq_powersave cpufreq_ondemand cpufreq_conservative video<br>> tc1100_wmi sbs sony_acpi i2c_ec asus_acpi it87 hwmon_vid eeprom<br>> i2c_isa ipaq<br>> usbserial ppp_async ppp_generic crc_ccitt ip6table_filter ip6_tables
<br>> sbp2<br>> lirc_dev bt878 tvaudio saa7134_alsa tda9887 tuner snd_seq_dummy<br>> snd_seq_oss<br>> snd_seq_midi snd_seq_midi_event snd_seq nvidia bttv dvb_usb_dtt200u<br>> dvb_usb<br>
> saa7134 snd_bt87x snd_via82xx dvb_core dvb_pll snd_cmipci<br>> snd_opl3_lib snd_hwdep<br>> snd_mpu401_uart snd_via82xx_modem snd_ac97_codec snd_ac97_bus<br>> snd_pcm_oss<br>> snd_mixer_oss snd_pcm snd_timer snd_rawmidi snd_seq_device video_buf
<br>> v4l1_compat<br>> ir_kbd_i2c ir_common analog via_agp agpgart pcspkr v4l2_common<br>> tveeprom videodev<br>> gameport snd soundcore snd_page_alloc usbhid vesafb fbcon tileblit<br>> font bitblit
<br>> softcursor vga16fb vgastate capability commoncap fan thermal<br>> processor sata_via<br>> libata sd_mod generic ide_disk ide_cd cdrom ohci1394 ieee1394<br>> uhci_hcd ehci_hcd<br>> ide_generic reiserfs evdev sg shpchp pci_hotplug btcx_risc i2c_algo_bit
<br>> i2c_viapro compat_ioctl32 serio_raw skge psmouse sk98lin floppy<br>> tsdev slhc<br>> i2c_dev i2c_core usb_storage scsi_mod libusual usbtest usbcore<br>> af_packet md_mod<br>> dm_mod ipv6 via82cxxx ext2 ext3 jbd hotkey dev_acpi ac pcc_acpi
<br>> button container<br>> battery lp parport_pc ppdev parport iptable_filter xt_state<br>> ip_conntrack_ftp<br>> ip_conntrack_irc ipt_REJECT ipt_TOS ipt_MASQUERADE ip_nat<br>> ip_conntrack nfnetlink
<br>> ipt_LOG iptable_mangle ip_tables xt_limit x_tables rfcomm l2cap<br>> bluetooth<br>> [17267534.132000] CPU: 0<br>> [17267534.132000] EIP: 0060:[<f8d89b7e>] Tainted: PF VLI
<br>> [17267534.132000] EFLAGS: 00010246 (2.6.17-11-generic #2)<br>> [17267534.132000] EIP is at dvb_dvr_poll+0x3e/0x90 [dvb_core]<br>> [17267534.132000] eax: 00000000 ebx: 00000106 ecx: f8d89b40
<br>> edx: 2d310063<br>> [17267534.132000 ] esi: ec931960 edi: 2d310033 ebp: f70c5e9c<br>> esp: f70c5c10<br>> [17267534.132000] ds: 007b es: 007b ss: 0068<br>> [17267534.132000] Process mythbackend (pid: 30166, threadinfo=f70c4000
<br>> task=f2726030)<br>> [17267534.132000 ] Stack: c012b7c0 f2726030 00000020 ec931960<br>> 00000000 c017e085<br>> f70c5c54 f70c5fac<br>> [17267534.132000] a39fe3f4 a39fe3fc f70c5e94 f70c5e94
<br>> 00000001 00000000<br>> 00000000 00000001<br>> [17267534.132000] f70c5e94 c017ed60 00000000 00000000<br>> 00000001 ec931960<br>> 00000000 f2726030<br>> [17267534.132000
] Call Trace:<br>> [17267534.132000] <c012b7c0> process_timeout+0x0/0x10 <c017e085><br>> do_sys_poll+0x205/0x400<br>> [17267534.132000] <c017ed60> __pollwait+0x0/0xf0 <c011bde0>
<br>> default_wake_function+0x0/0x10<br>> [17267534.132000] <f8ab58f3> qh_append_tds+0x133/0x540<br>> [ehci_hcd] <f8ab5dca><br>> qh_urb_transaction+0xca/0x320 [ehci_hcd]<br>> [
17267534.132000] <f8ab6b64> ehci_urb_enqueue+0xf4/0xd00<br>> [ehci_hcd] <f8d8b37d><br>> dvb_dmx_swfilter_packet+0x34d/0x370 [dvb_core]<br>> [17267534.132000] <f8a077b9> usb_submit_urb+0x199/0x200
<br>> [usbcore] <f8a06e4d><br>> hcd_submit_urb+0x1dd/0x930 [usbcore]<br>> [17267534.132000] <f8d8ac34> dvb_dmxdev_ts_callback+0xa4/0xd0<br>> [dvb_core]<br>> <f8d8b37d> dvb_dmx_swfilter_packet+0x34d/0x370 [dvb_core]
<br>> [17267534.132000] <c01e3071> rb_insert_color+0x71/0xd0 <f8a077b9><br>> usb_submit_urb+0x199/0x200 [usbcore]<br>> [17267534.132000] <f8d379d8> dvb_usb_urb_complete+0x88/0x100 [dvb_usb]
<br>> <c012b819> do_timer+0x39/0x360<br>> [17267534.132000] <c010f142> mark_offset_pmtmr+0x22/0xee0 <c010709e><br>> timer_interrupt+0x6e/0xb0<br>> [17267534.132000] <c0149415> __do_IRQ+0xc5/0x110 <c0105c8e>
<br>> do_IRQ+0x1e/0x30<br>> [17267534.132000] <c010408a> common_interrupt+0x1a/0x20 <c01e55b9><br>> copy_to_user+0x39/0x70<br>> [17267534.132000] <f8d9301f> dvb_ringbuffer_read+0xcf/0x100 [dvb_core]
<br>> <f8d89c2f> dvb_dmxdev_buffer_read+0x5f/0x1b0 [dvb_core]<br>> [17267534.132000] <f8ab7afe> ehci_irq+0x11e/0x190<br>> [ehci_hcd] <c016afc9><br>> vfs_read+0x119/0x180<br>
> [17267534.132000] <f8d89d80> dvb_dvr_read+0x0/0x40<br>> [dvb_core] <c017e2bd><br>> sys_poll+0x3d/0x50<br>> [17267534.132000] <c0102fbb> sysenter_past_esp+0x54/0x79<br>> [
17267534.132000] Code: 8b 40 78 8b 78 28 a1 88 d5 d9 f8 85 c0 75 4e<br>> 85 db 8d 57<br>> 30 74 0a 85 d2 74 06 89 d9 89 f0 ff 13 f6 46 18 03 bb 06 01 00 00 75<br>> 1a <83> 7f<br>> 2c 01 8d 47 1c 19 db e8 84 90 00 00 f7 d3 83 e3 4b 85 c0
<br>> [17267534.132000] EIP: [<f8d89b7e>] dvb_dvr_poll+0x3e/0x90<br>> [dvb_core] SS:ESP<br>> 0068:f70c5c10<br>> [17267534.132000] <6>usb 3-1: new full speed USB device using<br>> uhci_hcd and
<br>> address 3<br>> [17267534.716000] usb 3-1: not running at top speed; connect to a<br>> high speed hub<br>> [17267534.736000] usb 3-1: configuration #1 chosen from 1 choice<br>> [17267534.740000
] dvb-usb: found a 'WideView WT-220U PenType Receiver<br>> (Typhoon/Freecom)' in warm state.<br>> [17267534.740000] dvb-usb: will use the device's hardware PID filter<br>> (table<br>> count: 15).
<br>> [17267534.744000] DVB: registering new adapter (WideView WT-220U PenType<br>> Receiver (Typhoon/Freecom)).<br>> [17267534.744000] DVB: registering frontend 0 (WideView USB DVB-T)...<br>> [
17267534.744000] input: IR-receiver inside an USB DVB receiver as<br>> /class/input/input5<br>> [17267534.744000] dvb-usb: schedule remote query interval to 300 msecs.<br>> [17267534.744000] dvb-usb: WideView WT-220U PenType Receiver
<br>> (Typhoon/Freecom)<br>> successfully initialized and connected.<br>> [17267537.044000] dvb-usb: recv bulk message failed: -110<br>><br>><br>><br>><br>> _______________________________________________
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><br><br><br></blockquote></div><br>