linux-kernel - Re: suspend (uhci_hcd) defunct in mmotm 2008-09-13-03-09

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Message-ID: <Pine.LNX.4.44L0.0809181708500.17483-100000@iolanthe.rowland.org>
Date:	Thu, 18 Sep 2008 17:14:34 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Jiri Slaby <jirislaby@...il.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	USB list <linux-usb@...r.kernel.org>
Subject: Re: suspend (uhci_hcd) defunct in mmotm 2008-09-13-03-09

On Wed, 17 Sep 2008, Jiri Slaby wrote:

> Hi,
> 
> I've found suspend on my desktop defunct in mmotm 2008-09-13-03-09 (opposing to
> 2008-09-10-19-39).
> 
> Dmesg says:
> 
> uhci_hcd 0000:00:1d.1: PCI INT B disabled
> pci_legacy_suspend(): usb_hcd_pci_suspend+0x0/0x3e0 returns -16
> pm_op(): pci_pm_suspend+0x0/0xd0 returns -16
> PM: Device 0000:00:1d.0 failed to suspend: error -16
> PM: Some devices failed to suspend

The reason for this error is that the root hub wasn't already 
suspended.  Was there a USB device plugged into that controller?

Two days ago I ran 2.6.27-rc6 plus gregkh-all-2.6.27-rc6.patch from

http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/

on my laptop, and it suspended with no problem.  Can you try the same 
kernel?

If you still run into problems, post more of the dmesg log (with 
CONFIG_USB_DEBUG enabled, of course!).

Alan Stern

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