On Tue, May 7, 2013 at 8:01 PM, chris <1159...@bugs.launchpad.net> wrote:
> Hello Ming Lei.. Your request attached.
>
> ** Attachment added: "dmesg.log"
>
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1159358/+attachment/3668736/+files/dmesg.log
See below trace, it is the application of 'usb' which releases the usblp kernel
driver. I don't find 'usb' in current precise release, and looks it
doesn't belong
to udev too, so is it your test code? or could you find the package
the 'usb' is
included with below command?
dpkg -S usb
[ 220.673914] usblp 2-2:1.1: disconnect by usbfs
[ 220.673922] Pid: 2388, comm: usb Tainted: G I 3.2.0-41-generic #65
[ 220.673926] Call Trace:
[ 220.673937] [<c13e5d41>] usbdev_do_ioctl+0x1271/0x12b0
[ 220.673945] [<c13e5d80>] ? usbdev_do_ioctl+0x12b0/0x12b0
[ 220.673950] [<c13e5d8d>] usbdev_ioctl+0xd/0x10
[ 220.673957] [<c113f901>] do_vfs_ioctl+0x81/0x570
[ 220.673963] [<c10fa727>] ? kzfree+0x27/0x30
[ 220.673969] [<c1149249>] ? vfsmount_lock_local_unlock+0x19/0x20
[ 220.673976] [<c114a7aa>] ? mntput_no_expire+0x2a/0xd0
[ 220.673981] [<c114a868>] ? mntput+0x18/0x30
[ 220.673986] [<c1130f0c>] ? fput+0x16c/0x1d0
[ 220.673991] [<c112d2d4>] ? filp_close+0x54/0x80
[ 220.673997] [<c113fe58>] sys_ioctl+0x68/0x80
[ 220.674003] [<c1569b84>] syscall_call+0x7/0xb
[ 220.674009] [<c1570000>] ? kprobe_dispatcher+0x100/0x210
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https://bugs.launchpad.net/bugs/1159358
Title:
USB Printer & HDD external can't wake up after a moment of time
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