It happens the same to me. I have a ASUS M4A785TD-V EVO Motherboard with a SB710 chipset and Lucyd Lynx (Linux nexus 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:28:05 UTC 2010 x86_64 GNU/Linux).
It happens when I try to open me-tv to watch dvb. The program freezes and yells some error I can't remember right now, I'm not in front of my box, but it's related to some kind of read timeout. I unplug my dvb-t stickit but it does not unload related modules, and if I try to plug another usb device, it does not work. Even the tiny green light of my usb drive does not flash, as if it could get power from the USB port. These are the modules loaded: dvb_usb_dib0700 71047 0 dib7000p 18348 2 dvb_usb_dib0700 dib7000m 15907 1 dvb_usb_dib0700 dib0070 8549 2 dvb_usb_dib0700 dvb_usb 16709 1 dvb_usb_dib0700 dib3000mc 12997 1 dvb_usb_dib0700 dib8000 26879 1 dvb_usb_dib0700 dibx000_common 3570 4 dib7000p,dib7000m,dib3000mc,dib8000 dvb_core 102929 3 dib7000p,dvb_usb,dib8000 This is the dmesg output: [ 177.413252] ehci_hcd 0000:00:12.2: force halt; handhake ffffc90000650824 00004000 00000000 -> -110 [ 177.413301] ehci_hcd 0000:00:12.2: HC died; cleaning up [ 177.413334] usb 1-1: USB disconnect, address 2 [ 192.261966] dvb-usb: error while stopping stream. [ 206.778845] dvb-usb: could not submit URB no. 0 - get them all back [ 206.778857] dvb-usb: error while enabling fifo. [ 360.970053] INFO: task khubd:44 blocked for more than 120 seconds. [ 360.970060] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 360.970066] khubd D 0000000000000000 0 44 2 0x00000000 [ 360.970077] ffff880119d07b40 0000000000000046 0000000000015bc0 0000000000015bc0 [ 360.970087] ffff880119d09ab0 ffff880119d07fd8 0000000000015bc0 ffff880119d096f0 [ 360.970096] 0000000000015bc0 ffff880119d07fd8 0000000000015bc0 ffff880119d09ab0 [ 360.970104] Call Trace: [ 360.970131] [<ffffffffa043dd45>] dvb_unregister_frontend+0xc5/0x110 [dvb_core] [ 360.970144] [<ffffffff81085320>] ? autoremove_wake_function+0x0/0x40 [ 360.970156] [<ffffffffa03860e2>] dvb_usb_adapter_frontend_exit+0x22/0x40 [dvb_usb] [ 360.970166] [<ffffffffa03854b3>] dvb_usb_exit+0x53/0xd0 [dvb_usb] [ 360.970176] [<ffffffffa0385579>] dvb_usb_device_exit+0x49/0x60 [dvb_usb] [ 360.970187] [<ffffffff813d92d4>] usb_unbind_interface+0x124/0x170 [ 360.970196] [<ffffffff81368c8f>] __device_release_driver+0x6f/0xe0 [ 360.970203] [<ffffffff81368dfd>] device_release_driver+0x2d/0x40 [ 360.970212] [<ffffffff81367e1a>] bus_remove_device+0x9a/0xc0 [ 360.970220] [<ffffffff81365f77>] device_del+0x127/0x1d0 [ 360.970227] [<ffffffff813d5a98>] usb_disable_device+0xa8/0x130 [ 360.970236] [<ffffffff813cf832>] usb_disconnect+0xd2/0x170 [ 360.970244] [<ffffffff813cf931>] hub_quiesce+0x61/0xc0 [ 360.970252] [<ffffffff813d0e21>] hub_events+0x31/0x5a0 [ 360.970260] [<ffffffff8153e768>] ? thread_return+0x48/0x420 [ 360.970270] [<ffffffff810397a9>] ? default_spin_lock_flags+0x9/0x10 [ 360.970278] [<ffffffff813d13e5>] hub_thread+0x55/0x190 [ 360.970286] [<ffffffff81085320>] ? autoremove_wake_function+0x0/0x40 [ 360.970294] [<ffffffff813d1390>] ? hub_thread+0x0/0x190 [ 360.970301] [<ffffffff81084fa6>] kthread+0x96/0xa0 [ 360.970308] [<ffffffff810141ea>] child_rip+0xa/0x20 [ 360.970316] [<ffffffff81084f10>] ? kthread+0x0/0xa0 [ 360.970322] [<ffffffff810141e0>] ? child_rip+0x0/0x20 -- After removing dvb-t usb stick (MSI Digivox duo, af9015 based)usb subsystem hangs https://bugs.launchpad.net/bugs/558532 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
