kernel-packages team mailing list archive

["Federico M. Pires" <1191603@xxxxxxxxxxxxxxxxxx>]

I've been following this, since I was affected using Arch Linux too. It
seems a commit has been included in 3.10.8 for the workaround of
accepting late URBs submissions:

https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.10.8

commit c72a0e036f9d80c609e608a723751343f1f5e9fc

USB: EHCI: accept very late isochronous URBs

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1191603

Title:
  raring-updates: regression: 3.8.0-24.35 causes sporadic failure of USB
  audio devices

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  The 3.8.0-24.35 kernel update in raring introduced sporadic failure of
  USB audio devices. The symptoms are that the device suddenly stops
  working and you get the following dmesg output:

  [ 7532.838274] cannot submit urb (err = -18)
  [ 7532.838283] cannot submit urb (err = -18)
  [ 7532.838291] cannot submit urb (err = -18)
  [ 7532.842224] delay: estimated 288, actual 96
  [ 7532.922160] delay: estimated 432, actual 96

  This bug has been introduced by the following commits (UHCI: implement new semantics for URB_ISO_ASAP, OHCI: implement new semantics for URB_ISO_ASAP):
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c44b225077bb1fb25ed5cd5c4f226897b91bedd4
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6a41b4d3fe8cd4cc95181516fc6fba7b1747a27c

  A fix has been released (USB: fix latency in uhci-hcd and ohci-hcd):
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e1944017839d7dfbf7329fac4bdec8b4050edf5e

  The fix hasn't been backported to 3.8 yet, but as this bug was
  introduced to raring by pulling upstream kernel changes, it would be
  nice to backport the fix to raring as soon as possible.

  For further reference:
  http://markmail.org/message/gt554vejrjkutsfw#query:+page:1+mid:gt554vejrjkutsfw+state:results
  https://bbs.archlinux.org/viewtopic.php?id=163891
  http://comments.gmane.org/gmane.linux.usb.general/85343
  http://lists.opensuse.org/opensuse-bugs/2013-05/msg01617.html

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603/+subscriptions