### I seem to be affected by this bug with the current raring kernel: david@skyhawk:~$ uname -r 3.8.0-27-generic
Aug 4 21:24:32 skyhawk kernel: [21591.992070] usb 1-6: new high-speed USB device number 15 using ehci-pci Aug 4 21:24:33 skyhawk kernel: [21592.220296] usb 1-6: New USB device found, idVendor=041e, idProduct=4095 Aug 4 21:24:33 skyhawk kernel: [21592.220306] usb 1-6: New USB device strings: Mfr=3, Product=1, SerialNumber=2 Aug 4 21:24:33 skyhawk kernel: [21592.220313] usb 1-6: Product: Live! Cam Sync HD VF0770 Aug 4 21:24:33 skyhawk kernel: [21592.220319] usb 1-6: Manufacturer: Creative Technology Ltd. Aug 4 21:24:33 skyhawk kernel: [21592.220325] usb 1-6: SerialNumber: Aug 4 21:24:33 skyhawk kernel: [21592.225765] uvcvideo: Found UVC 1.00 device Live! Cam Sync HD VF0770 (041e:4095) Aug 4 21:24:33 skyhawk kernel: [21592.237697] input: Live! Cam Sync HD VF0770 as /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/input/input18 Aug 4 21:25:15 skyhawk kernel: [21634.298726] cannot submit urb (err = -18) Aug 4 21:26:32 skyhawk kernel: last message repeated 7 times ### The video is not affected, but the audio recording by the microphone just stops when the "cannot submit urb" error shows ### up. It only works for a short before it stops. It sounds like Alan's patch above might workaround the problem in this case. ### I'll try it when I get a chance and get back to you... -- 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
