This happened again with the latest kernel...
Linux courage 3.2.0-14-generic #23-Ubuntu SMP Fri Feb 3 23:17:59 UTC
2012 x86_64 x86_64 x86_64 GNU/Linux
This is what was in the log..
[33389.823505] hub 2-1.1.1:1.0: cannot reset port 1 (err = -71)
[33389.858696] usb 2-1.1.1: USB disconnect, device number 8
[33389.858701] usb 2-1.1.1.1: USB disconnect, device number 9
[33389.870588] hub 2-1.1.1:1.0: cannot reset port 1 (err = -71)
[33389.870594] hub 2-1.1.1:1.0: cannot reset port 1 (err = -19)
[33389.870598] hub 2-1.1.1:1.0: cannot disable port 1 (err = -19)
[33389.870602] hub 2-1.1.1:1.0: cannot disable port 1 (err = -19)
[33389.871160] scsi 7:0:0:0: killing request
[33390.006453] hub 2-1.1:1.0: hub_port_status failed (err = -71)
[33390.006459] hub 2-1.1:1.0: connect-debounce failed, port 1 disabled
[33390.084515] usb 2-1.1: USB disconnect, device number 3
[88254.083802] hub 2-1:1.0: hub_port_status failed (err = -110)
[88257.829221] usb 2-1.1: new high-speed USB device number 10 using ehci_hcd
[88258.033156] ehci_hcd 0000:00:1d.0: fatal error
[88258.037018] ehci_hcd 0000:00:1d.0: HC died; cleaning up
[88258.037040] usb 2-1.1: device descriptor read/all, error -108
[88258.037048] hub 2-1:1.0: cannot disable port 1 (err = -19)
[88258.037071] hub 2-1:1.0: cannot reset port 1 (err = -19)
[88258.037077] hub 2-1:1.0: cannot disable port 1 (err = -19)
[88258.039747] ehci_hcd 0000:00:1d.0: force halt; handshake ffffc90000c68024
00004000 00004000 -> -110
[88258.039751] ehci_hcd 0000:00:1d.0: HC died; cleaning up
[88258.039762] hub 2-1:1.0: cannot reset port 1 (err = -19)
[88258.039766] hub 2-1:1.0: cannot disable port 1 (err = -19)
[88258.039771] hub 2-1:1.0: cannot reset port 1 (err = -19)
[88258.039776] hub 2-1:1.0: cannot disable port 1 (err = -19)
[88258.039781] hub 2-1:1.0: unable to enumerate USB device on port 1
[88258.039786] hub 2-1:1.0: cannot disable port 1 (err = -19)
[88258.039795] usb 2-1.2: USB disconnect, device number 4
[88258.140682] usb 2-1.3: USB disconnect, device number 5
[88258.463397] usb 2-1.4: USB disconnect, device number 6
[88258.591312] usb 2-1.8: USB disconnect, device number 7
[88258.597897] usb 2-1: USB disconnect, device number 2
** Tags removed: kernel-request-3.2.0-13.22
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/926310
Title:
USB failing
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