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[Launchpad Bug Tracker <476260@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/476260

Title:
  USB sound card gets pulseaudio and the kernel to fail

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Binary package hint: ubuntu-docs

  Hi everyone,

  I have two USB soundcards and this bug happens whatever the card.
  After a while into every single session, my USB soundcard stops
  reacting (no more sound, can't control the volume) and I get these
  errors :

  Nov  4 12:01:58 shao197-laptop kernel: [ 1476.804056] timeout: still 3 active urbs..
  Nov  4 12:02:14 shao197-laptop kernel: [ 1492.928930] 3:1:1: usb_set_interface failed
  Nov  4 12:02:19 shao197-laptop kernel: [ 1497.928129] 3:1:1: usb_set_interface failed
  Nov  4 12:02:24 shao197-laptop kernel: [ 1502.928319] 3:1:1: usb_set_interface failed
  Nov  4 12:02:29 shao197-laptop kernel: [ 1507.928501] 3:1:1: usb_set_interface failed
  Nov  4 12:02:34 shao197-laptop pulseaudio[1474]: alsa-sink.c: Failed to set hardware parameters: Input/output error
  Nov  4 12:02:34 shao197-laptop kernel: [ 1512.928710] 3:1:1: usb_set_interface failed
  Nov  4 12:02:39 shao197-laptop kernel: [ 1517.928891] 3:1:1: usb_set_interface failed

  And then a bit later :

  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488063] INFO: task khubd:19 blocked for more than 120 seconds.
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488069] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488073] khubd         D c08145c0     0    19      2 0x00000000
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488080]  db8e5e30 00000046 c2814000 c08145c0 db876718 c08145c0 3558f92b 00000192
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488089]  c08145c0 c08145c0 db876718 c08145c0 00000000 00000192 c08145c0 da892700
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488098]  db876480 d0e47000 db8e5e38 d27e3540 db8e5e54 c0410bf5 00000000 db876480
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488106] Call Trace:
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488121]  [<c0410bf5>] usb_kill_urb+0x65/0xa0
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488129]  [<c015c280>] ? autoremove_wake_function+0x0/0x40
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488135]  [<c040f83f>] usb_hcd_flush_endpoint+0xaf/0x100
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488140]  [<c0411679>] usb_disable_endpoint+0x49/0x80
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488145]  [<c04116ce>] usb_disable_device+0x1e/0xf0
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488149]  [<c040c37e>] usb_disconnect+0x9e/0x110
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488154]  [<c040c72c>] hub_port_connect_change+0x7c/0x830
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488159]  [<c0412400>] ? usb_control_msg+0xd0/0x120
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488166]  [<c0400100>] ? ppp_mp_reconstruct+0x210/0x2c0
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488170]  [<c040df95>] hub_events+0x1f5/0x500
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488178]  [<c056e97c>] ? schedule+0x40c/0x730
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488183]  [<c015c3da>] ? finish_wait+0x4a/0x70
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488188]  [<c040e2a0>] ? hub_thread+0x0/0x150
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488192]  [<c040e2d5>] hub_thread+0x35/0x150
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488197]  [<c015c280>] ? autoremove_wake_function+0x0/0x40
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488201]  [<c015bf8c>] kthread+0x7c/0x90
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488206]  [<c015bf10>] ? kthread+0x0/0x90
  Nov  4 12:15:21 shao197-laptop kernel: [ 2280.488212]  [<c0104007>] kernel_thread_helper+0x7/0x10

  I have to restart to get the sound back. Disconnecting the soundcard
  and replugging it doesn't help at all.

  I use Ubuntu 9.10 final and the 1:0.9.19-0ubuntu4 version of PulseAudio.
  Tell me if you need more info.

  Thanks.

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