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From: Alan Stern <stern@rowland.harvard.edu>
To: Mark Lord <lkml@rtr.ca>
Cc: bugme-daemon@bugzilla.kernel.org, <rjw@sisk.pl>,
	<bunk@kernel.org>, Linux Kernel <linux-kernel@vger.kernel.org>,
	<linux-usb@vger.kernel.org>
Subject: Re: [Bug 10345] USB HID problems after resume
Date: Sat, 29 Mar 2008 18:02:00 -0400 (EDT)	[thread overview]
Message-ID: <Pine.LNX.4.44L0.0803291759030.21236-100000@netrider.rowland.org> (raw)
In-Reply-To: <47EE793C.5070105@rtr.ca>

On Sat, 29 Mar 2008, Mark Lord wrote:

> Just happened again.  The machine resumed from RAM with no functioning USB.
> Still running the exact same 2.6.25-rc7 kernel as before, with the RTC conflict fixed.
> 
> WTF?

The first step in debugging this is to build a kernel with
CONFIG_USB_DEBUG and send the dmesg log following an unsuccessful
resume.  Include events from before the suspend; don't strip them out.  
If the symptoms are the same as before then you should also get a stack
dump for the ksuspend_usbd task.

Alan Stern


  reply	other threads:[~2008-03-29 22:02 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20080328223544.A61F711D10C@picon.linux-foundation.org>
     [not found] ` <47EE78C9.5090006@rtr.ca>
2008-03-29 17:15   ` Mark Lord
2008-03-29 22:02     ` Alan Stern [this message]
2008-03-30  9:30     ` Oliver Neukum
2008-03-30 11:48     ` Pavel Machek
2008-03-30 17:46       ` Mark Lord
2008-03-30 18:22         ` Pavel Machek
2008-03-30 20:15           ` Mark Lord
2008-03-30 20:20             ` Pavel Machek
2008-03-30 20:22               ` Mark Lord

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