linux-kernel - Re: 2.6.26-rc1 regression since 2.6.25

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Message-ID: <Pine.LNX.4.44L0.0806271642170.2100-100000@netrider.rowland.org>
Date:	Fri, 27 Jun 2008 16:43:25 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Lukas Hejtmanek <xhejtman@....muni.cz>
cc:	Greg KH <greg@...ah.com>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>
Subject: Re: 2.6.26-rc1 regression since 2.6.25 - problem in 2.6.26-rc8 again

On Fri, 27 Jun 2008, Alan Stern wrote:

> This is very confusing.  It appears that the two usbmon logs don't show 
> the same actions on your part.
> 
> Let's try to keep this as simple as possible.  We'll consider a single 
> fixed course of action:
...
> Do exactly the same thing under both operating system versions, and 
> then we should have suitably comparable logs.

I forgot to mention that you should run these tests under kernels that 
were built with CONFIG_USB_DEBUG enabled, and you should post the two 
dmesg logs along with the usbmon logs.

Alan Stern

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