Re: [linux-usb-devel] 2.6.11-rc[23]: swsusp & usb regression

[Alan Stern]

On Sat, 5 Feb 2005, Pavel Machek wrote:

> Hi!
> 
> In 2.6.11-rc[23], I get problems after swsusp resume:
> 
> Feb  4 23:54:39 amd kernel: Restarting tasks...<3>hub 3-0:1.0:
> over-current change on port 1
> Feb  4 23:54:39 amd kernel:  done
> Feb  4 23:54:39 amd kernel: hub 3-0:1.0: connect-debounce failed, port
> 1 disabled
> Feb  4 23:54:39 amd kernel: hub 3-0:1.0: over-current change on port 2
> Feb  4 23:54:39 amd kernel: usb 3-2: USB disconnect, address 2
> 
> After unplugging usb bluetooth key, machine hung. Sysrq still
> responded with help but I could not get any usefull output.

> I tried deselecting CONFIG_USB_EHCI_HCD, and got repeating stream of
>
> Feb  5 00:21:17 amd kernel: Restarting tasks... done
> Feb  5 00:21:17 amd kernel: hub 3-0:1.0: over-current change on port 1
> Feb  5 00:21:18 amd kernel: hub 3-0:1.0: connect-debounce failed, port 1 disabled
> Feb  5 00:21:18 amd kernel: hub 3-0:1.0: over-current change on port 2
> Feb  5 00:21:20 amd kernel: hub 3-0:1.0: connect-debounce failed, port 2 disabled

Considering all the known problems in uhci-hcd's suspend support, I'm not 
sure it's worth pursuing this.  On the other hand, all those "over-current 
change" messages you kept getting might indicate a more serious kind of 
failure.

Does setting CONFIG_USB_SUSPEND help at all?

Alan Stern

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