And it appears I've spoken too soon again - I had the exact same crash happen (the 2nd stack track in the log above) using the 3.16 kernel that used to work well! That kernel didn't have the first trace though, so it does work somewhat better than newer ones.
-- 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/1177394 Title: USB sequence errors in snd_usb_usx2y Status in linux package in Ubuntu: Incomplete Bug description: 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- u...@lists.sourceforge.net/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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1177394/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
