I haven't seen the problem with the latest kernel. That's not to say it's cured because the problem is extremely intermittent and I am yet to find a reliable way of re-creating it. I am guessing there's a race condition somewhere.
** Tags added: apport-collected ** Description changed: I can't report this with ubuntu bug because: $ ubuntu-bug Segmentation fault (core dumped) so here's my best description: Sometimes, within a few minutes of boot, my usb-connected mouse and keyboard still stop working. For the mouse, it just stops but for the keyboard it breaks after a key down event which leaves whatever key you pressed repeating for ever (which makes it quite hard to reboot!). Quite often I will know this is about to happen because the media keys and scroll wheel on the keyboard fail to work for a while before the eventual failure. I see this in the syslog: Jan 30 09:04:36 beast kernel: [ 240.576040] INFO: task modprobe:370 blocked for more than 120 seconds. Jan 30 09:04:36 beast kernel: [ 240.576046] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jan 30 09:04:36 beast kernel: [ 240.576051] modprobe D ffffffff81806240 0 370 153 0x00000004 Jan 30 09:04:36 beast kernel: [ 240.576059] ffff880121c3fb68 0000000000000086 ffff880121c3fb18 ffffffff81309787 Jan 30 09:04:36 beast kernel: [ 240.576067] ffff880121c3ffd8 ffff880121c3ffd8 ffff880121c3ffd8 0000000000013780 Jan 30 09:04:36 beast kernel: [ 240.576073] ffffffff81c0d020 ffff880125162e20 ffff880121c3fb78 ffff8801251b96c0 Jan 30 09:04:36 beast kernel: [ 240.576079] Call Trace: Jan 30 09:04:36 beast kernel: [ 240.576091] [<ffffffff81309787>] ? kobject_put+0x27/0x60 Jan 30 09:04:36 beast kernel: [ 240.576100] [<ffffffff81653bbf>] schedule+0x3f/0x60 Jan 30 09:04:36 beast kernel: [ 240.576106] [<ffffffff81491ced>] usb_kill_urb.part.4+0x5d/0xa0 Jan 30 09:04:36 beast kernel: [ 240.576112] [<ffffffff81089e50>] ? add_wait_queue+0x60/0x60 Jan 30 09:04:36 beast kernel: [ 240.576117] [<ffffffff81491d61>] usb_kill_urb+0x31/0x40 Jan 30 09:04:36 beast kernel: [ 240.576141] [<ffffffffa0082941>] usbhid_init_reports+0xc1/0x120 [usbhid] Jan 30 09:04:36 beast kernel: [ 240.576151] [<ffffffffa0082e31>] usbhid_start+0x491/0x570 [usbhid] Jan 30 09:04:36 beast kernel: [ 240.576162] [<ffffffffa008d274>] lg_probe+0x84/0x2c0 [hid_logitech] Jan 30 09:04:36 beast kernel: [ 240.576170] [<ffffffff8103cbb9>] ? default_spin_lock_flags+0x9/0x10 Jan 30 09:04:36 beast kernel: [ 240.576184] [<ffffffffa004eba4>] hid_device_probe+0xb4/0x140 [hid] Jan 30 09:04:36 beast kernel: [ 240.576190] [<ffffffff811ed043>] ? sysfs_create_link+0x13/0x20 Jan 30 09:04:36 beast kernel: [ 240.576199] [<ffffffff813f2f38>] really_probe+0x68/0x190 Jan 30 09:04:36 beast kernel: [ 240.576205] [<ffffffff813f31c5>] driver_probe_device+0x45/0x70 Jan 30 09:04:36 beast kernel: [ 240.576213] [<ffffffff813f329b>] __driver_attach+0xab/0xb0 Jan 30 09:04:36 beast kernel: [ 240.576217] [<ffffffff813f31f0>] ? driver_probe_device+0x70/0x70 Jan 30 09:04:36 beast kernel: [ 240.576222] [<ffffffff813f31f0>] ? driver_probe_device+0x70/0x70 Jan 30 09:04:36 beast kernel: [ 240.576229] [<ffffffff813f202c>] bus_for_each_dev+0x5c/0x90 Jan 30 09:04:36 beast kernel: [ 240.576237] [<ffffffff813f2cfe>] driver_attach+0x1e/0x20 Jan 30 09:04:36 beast kernel: [ 240.576244] [<ffffffff813f2950>] bus_add_driver+0x1a0/0x270 Jan 30 09:04:36 beast kernel: [ 240.576258] [<ffffffffa0095000>] ? 0xffffffffa0094fff Jan 30 09:04:36 beast kernel: [ 240.576262] [<ffffffff813f3806>] driver_register+0x76/0x140 Jan 30 09:04:36 beast kernel: [ 240.576272] [<ffffffffa0095000>] ? 0xffffffffa0094fff Jan 30 09:04:36 beast kernel: [ 240.576285] [<ffffffffa004fb53>] __hid_register_driver+0x53/0x90 [hid] Jan 30 09:04:36 beast kernel: [ 240.576293] [<ffffffff810417e3>] ? set_memory_nx+0x43/0x50 Jan 30 09:04:36 beast kernel: [ 240.576306] [<ffffffffa009501e>] lg_init+0x1e/0x1000 [hid_logitech] Jan 30 09:04:36 beast kernel: [ 240.576314] [<ffffffff81002040>] do_one_initcall+0x40/0x180 Jan 30 09:04:36 beast kernel: [ 240.576322] [<ffffffff810a782e>] sys_init_module+0xbe/0x230 Jan 30 09:04:36 beast kernel: [ 240.576328] [<ffffffff8165e002>] system_call_fastpath+0x16/0x1b 2 mins later: Jan 30 09:06:36 beast kernel: [ 360.576038] INFO: task modprobe:370 blocked for more than 120 seconds. Jan 30 09:06:36 beast kernel: [ 360.576044] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jan 30 09:06:36 beast kernel: [ 360.576049] modprobe D ffffffff81806240 0 370 153 0x00000004 Jan 30 09:06:36 beast kernel: [ 360.576057] ffff880121c3fb68 0000000000000086 ffff880121c3fb18 ffffffff81309787 Jan 30 09:06:36 beast kernel: [ 360.576064] ffff880121c3ffd8 ffff880121c3ffd8 ffff880121c3ffd8 0000000000013780 Jan 30 09:06:36 beast kernel: [ 360.576071] ffffffff81c0d020 ffff880125162e20 ffff880121c3fb78 ffff8801251b96c0 Jan 30 09:06:36 beast kernel: [ 360.576077] Call Trace: Jan 30 09:06:36 beast kernel: [ 360.576089] [<ffffffff81309787>] ? kobject_put+0x27/0x60 Jan 30 09:06:36 beast kernel: [ 360.576097] [<ffffffff81653bbf>] schedule+0x3f/0x60 Jan 30 09:06:36 beast kernel: [ 360.576104] [<ffffffff81491ced>] usb_kill_urb.part.4+0x5d/0xa0 Jan 30 09:06:36 beast kernel: [ 360.576110] [<ffffffff81089e50>] ? add_wait_queue+0x60/0x60 Jan 30 09:06:36 beast kernel: [ 360.576115] [<ffffffff81491d61>] usb_kill_urb+0x31/0x40 Jan 30 09:06:36 beast kernel: [ 360.576139] [<ffffffffa0082941>] usbhid_init_reports+0xc1/0x120 [usbhid] Jan 30 09:06:36 beast kernel: [ 360.576154] [<ffffffffa0082e31>] usbhid_start+0x491/0x570 [usbhid] Jan 30 09:06:36 beast kernel: [ 360.576165] [<ffffffffa008d274>] lg_probe+0x84/0x2c0 [hid_logitech] Jan 30 09:06:36 beast kernel: [ 360.576172] [<ffffffff8103cbb9>] ? default_spin_lock_flags+0x9/0x10 Jan 30 09:06:36 beast kernel: [ 360.576186] [<ffffffffa004eba4>] hid_device_probe+0xb4/0x140 [hid] Jan 30 09:06:36 beast kernel: [ 360.576193] [<ffffffff811ed043>] ? sysfs_create_link+0x13/0x20 Jan 30 09:06:36 beast kernel: [ 360.576203] [<ffffffff813f2f38>] really_probe+0x68/0x190 Jan 30 09:06:36 beast kernel: [ 360.576209] [<ffffffff813f31c5>] driver_probe_device+0x45/0x70 Jan 30 09:06:36 beast kernel: [ 360.576219] [<ffffffff813f329b>] __driver_attach+0xab/0xb0 Jan 30 09:06:36 beast kernel: [ 360.576223] [<ffffffff813f31f0>] ? driver_probe_device+0x70/0x70 Jan 30 09:06:36 beast kernel: [ 360.576232] [<ffffffff813f31f0>] ? driver_probe_device+0x70/0x70 Jan 30 09:06:36 beast kernel: [ 360.576240] [<ffffffff813f202c>] bus_for_each_dev+0x5c/0x90 Jan 30 09:06:36 beast kernel: [ 360.576252] [<ffffffff813f2cfe>] driver_attach+0x1e/0x20 Jan 30 09:06:36 beast kernel: [ 360.576258] [<ffffffff813f2950>] bus_add_driver+0x1a0/0x270 Jan 30 09:06:36 beast kernel: [ 360.576272] [<ffffffffa0095000>] ? 0xffffffffa0094fff Jan 30 09:06:36 beast kernel: [ 360.576276] [<ffffffff813f3806>] driver_register+0x76/0x140 Jan 30 09:06:36 beast kernel: [ 360.576285] [<ffffffffa0095000>] ? 0xffffffffa0094fff Jan 30 09:06:36 beast kernel: [ 360.576300] [<ffffffffa004fb53>] __hid_register_driver+0x53/0x90 [hid] Jan 30 09:06:36 beast kernel: [ 360.576305] [<ffffffff810417e3>] ? set_memory_nx+0x43/0x50 Jan 30 09:06:36 beast kernel: [ 360.576315] [<ffffffffa009501e>] lg_init+0x1e/0x1000 [hid_logitech] Jan 30 09:06:36 beast kernel: [ 360.576321] [<ffffffff81002040>] do_one_initcall+0x40/0x180 Jan 30 09:06:36 beast kernel: [ 360.576329] [<ffffffff810a782e>] sys_init_module+0xbe/0x230 Jan 30 09:06:36 beast kernel: [ 360.576336] [<ffffffff8165e002>] system_call_fastpath+0x16/0x1b The same sort of messages repeat every 2 minutes until I rebooted it. cat /proc/version_signature: Ubuntu 3.2.0-10.18-generic 3.2.1 + --- + AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. + ApportVersion: 2.0.1-0ubuntu3 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: ed 2678 F.... pulseaudio + CRDA: Error: [Errno 2] No such file or directory + Card0.Amixer.info: + Card hw:0 'NVidia'/'HDA NVidia at 0xfe020000 irq 21' + Mixer name : 'Nvidia MCP77/78 HDMI' + Components : 'HDA:10ec0888,10438321,00100101 HDA:10de0002,10de0101,00100000' + Controls : 45 + Simple ctrls : 24 + DistroRelease: Ubuntu 12.04 + HibernationDevice: RESUME=UUID=73dd7b46-df18-4ae4-9a16-7e635959e1b1 + IwConfig: + lo no wireless extensions. + + virbr0 no wireless extensions. + + eth0 no wireless extensions. + MachineType: System manufacturer System Product Name + NonfreeKernelModules: nvidia + Package: linux (not installed) + ProcEnviron: + LANGUAGE= + LC_TIME=en_GB.utf8 + TERM=xterm + LANG=en_GB.utf8 + SHELL=/bin/bash + ProcFB: 0 VESA VGA + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=38c98076-521e-408e-af6a-2e8e00de0f05 ro + ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 + RelatedPackageVersions: + linux-restricted-modules-3.2.0-23-generic N/A + linux-backports-modules-3.2.0-23-generic N/A + linux-firmware 1.79 + RfKill: + + SourcePackage: linux + Tags: precise precise + Uname: Linux 3.2.0-23-generic x86_64 + UpgradeStatus: Upgraded to precise on 2012-01-16 (90 days ago) + UserGroups: adm admin cdrom dialout kvm libvirtd lpadmin plugdev sambashare + dmi.bios.date: 05/28/2008 + dmi.bios.vendor: Phoenix Technologies, LTD + dmi.bios.version: ASUS M3N72-D ACPI BIOS Revision 0202 + dmi.board.name: M3N72-D + dmi.board.vendor: ASUSTeK Computer INC. + dmi.board.version: 1.XX + dmi.chassis.asset.tag: 123456789000 + dmi.chassis.type: 3 + dmi.chassis.vendor: Chassis Manufacture + dmi.chassis.version: Chassis Version + dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSM3N72-DACPIBIOSRevision0202:bd05/28/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N72-D:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion: + dmi.product.name: System Product Name + dmi.product.version: System Version + dmi.sys.vendor: System manufacturer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/923666 Title: [precise] USB devices occasionally stop working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/923666/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
