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SubjectRe: USB disconnects every 30 seconds (2.6.27-rc8)
On Fri, 3 Oct 2008, Dave Hansen wrote:

> OK, here's output with both Thomas/Hugh's timing fix as well as the USB
> snooping turned on. The disconnects still happen, but I did get some
> good snoop output:
>
> Oct 3 16:01:59 nimitz kernel: [ 180.273883] usb usb7: opened by process 6485: hald-addon-usb-
> Oct 3 16:01:59 nimitz kernel: [ 180.273894] usb usb7: usbdev_ioctl: CONNECTINFO
> Oct 3 16:01:59 nimitz kernel: [ 180.273935] usb usb7: opened by process 6485: hald-addon-usb-
>
> grepping for hald:
> dave@nimitz:~$ ps aux | grep hald
> 111 6407 0.5 0.1 6340 4352 ? Ss 15:59 0:00 /usr/sbin/hald
> root 6411 0.0 0.0 3348 1152 ? S 15:59 0:00 hald-runner
> root 6485 0.1 0.0 2996 1140 ? S 15:59 0:00 hald-addon-usb-csr: listening on 'MX700 Optical Mouse'
> ...
>
> If I kill off 'hald-addon-usb-csr', then the resets stop happening.
> Restart hal, and they come back.

There's probably a setting for hal which will prevent this constant
probing.

> Oct 3 16:01:59 nimitz kernel: [ 180.273883] usb usb7: opened by process 6485: hald-addon-usb-
> Oct 3 16:01:59 nimitz kernel: [ 180.273894] usb usb7: usbdev_ioctl: CONNECTINFO
> Oct 3 16:01:59 nimitz kernel: [ 180.273935] usb usb7: opened by process 6485: hald-addon-usb-
> Oct 3 16:01:59 nimitz kernel: [ 180.273940] usb usb7: usbdev_ioctl: IOCTL
> Oct 3 16:01:59 nimitz kernel: [ 180.392126] usb 3-4: opened by process 6485: hald-addon-usb-
> Oct 3 16:01:59 nimitz kernel: [ 180.393185] usb 3-4.3: USB disconnect, address 16
> Oct 3 16:01:59 nimitz kernel: [ 180.393191] usb 3-4.3.4: USB disconnect, address 17
> Oct 3 16:01:59 nimitz kernel: [ 180.437913] usb 3-4.3: new high speed USB device using ehci_hcd and address 18
> Oct 3 16:01:59 nimitz kernel: [ 180.494705] usb 3-4.3: configuration #1 chosen from 1 choice
> Oct 3 16:01:59 nimitz kernel: [ 180.495101] hub 3-4.3:1.0: USB hub found
> Oct 3 16:01:59 nimitz kernel: [ 180.495409] hub 3-4.3:1.0: 4 ports detected
> Oct 3 16:01:59 nimitz kernel: [ 180.600101] usb 3-4: usbdev_ioctl: CONNECTINFO
> Oct 3 16:01:59 nimitz kernel: [ 180.600144] usb usb3: opened by process 6485: hald-addon-usb-
> Oct 3 16:01:59 nimitz kernel: [ 180.600147] usb usb3: usbdev_ioctl: CONNECTINFO
> Oct 3 16:01:59 nimitz kernel: [ 180.600167] usb 3-4: opened by process 6485: hald-addon-usb-
> Oct 3 16:01:59 nimitz kernel: [ 180.600170] usb 3-4: usbdev_ioctl: IOCTL

Without a usbmon log, I can't tell what may still be going wrong.

Alan Stern



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