kernel-packages team mailing list archive

[Paul Tagliamonte <paultag@xxxxxxxxxx>]

I'll test this out tonight, thanks!

On Thu, Aug 1, 2013 at 2:58 PM, Alan Stern <1191603@xxxxxxxxxxxxxxxxxx> wrote:
> If it's xHCI then there's nothing I can do.  If it's EHCI then the
> attached patch ought to help.  For debugging purpose it writes a warning
> message to the kernel log whenever an underrun occurs, but it prevents
> the underrun from causing a failure.
>
> It turns out there are two bugs in the snd-usb-audio driver, either of
> which may be affecting you.  There's a patch for one of the bugs at
> <http://marc.info/?l=linux-usb&m=137288343602140&w=2>, but there's no
> fix for the other bug (not enough URBs submitted).
>
> ** Attachment added: "Accept URB submissions during underruns, with a warning"
>    https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603/+attachment/3757297/+files/ehci-iso-accept
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> 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


-- 
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#define sizeof(x) rand()
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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