Public bug reported: Using kernel 3.8.0.19.35, when I plug in my Tascam us-122 usb audio device, the log fills up with many of the following messages as soon as the firmware is loaded:
May 5 18:40:31 scaph kernel: [64138.774214] Sequence Error!(hcd_frame=391894 ep=10out;wait=391892,frame=391890). May 5 18:40:31 scaph kernel: [64138.774214] Most probably some urb of usb-frame 391892 is still missing. May 5 18:40:31 scaph kernel: [64138.774214] Cause could be too long delays in usb-hcd interrupt handling. The device seems to initialize properly, but any attempt to actually use it (starting jackd for example) results in a few more of those messages in the log, and the program fails to connect to the device. This is very similar to a bug that cropped up several years ago - here's a thread I made on the alsa-user list back in 2006 (!) about that one: http://www.mail-archive.com/alsa- [email protected]/msg18003.html That bug was fixed in 2.6.18 so I don't know if it might be actually related or not. In any case, I've temporarily solved the issue by downgrading to quantal's kernel, 3.5.0-28, which doesn't have the bug. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-generic 3.8.0.19.35 ProcVersionSignature: Ubuntu 3.5.0-28.48-generic 3.5.7.9 Uname: Linux 3.5.0-28-generic i686 ApportVersion: 2.9.2-0ubuntu8 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jono 1741 F.... pulseaudio Date: Tue May 7 09:31:02 2013 HibernationDevice: RESUME=UUID=21e8f32e-d542-4900-ac9c-2ade76ed3084 Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: LENOVO 170237U MarkForUpload: True PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-28-generic root=UUID=860958bf-acf0-48eb-abb6-acd3022e5a9c ro quiet splash RelatedPackageVersions: linux-restricted-modules-3.5.0-28-generic N/A linux-backports-modules-3.5.0-28-generic N/A linux-firmware 1.106 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to raring on 2013-04-13 (23 days ago) WifiSyslog: WpaSupplicantLog: dmi.bios.date: 03/31/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 7BETD8WW (2.19 ) dmi.board.name: 170237U dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr7BETD8WW(2.19):bd03/31/2011:svnLENOVO:pn170237U:pvrThinkPadX60s:rvnLENOVO:rn170237U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 170237U dmi.product.version: ThinkPad X60s dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 raring -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1177394 Title: USB sequence errors in snd_usb_usx2y To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1177394/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
