Re: [usb resume regression] in 3.16-rc1

From: Alan Stern
Date: Fri Jun 20 2014 - 10:58:00 EST


On Fri, 20 Jun 2014, JÃrg Otte wrote:

> 2014-06-19 19:35 GMT+02:00 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>:
> > On Thu, 19 Jun 2014, JÃrg Otte wrote:
> >
> >> I don't know how to do this.
> >
> > To enable dynamic debugging (as root):
> >
> > echo 'module usbcore =p' >/sys/kernel/debug/dynamic_debug/control
> > echo 'module ehci_hcd =p' >/sys/kernel/debug/dynamic_debug/control
> >
> > Do this before you carry out the suspend, and post the resulting dmesg
> > log.
> >
> > Alan Stern
> >
> here it is.

Now I see the reason for the regression. There already is a patch to
fix it:

http://marc.info/?l=linux-usb&m=140304702623966&w=2

The fix will probably be included in 3.16-rc2 or -rc3.

Alan Stern

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