linux-kernel - RE: 2.6.27: ehci bug with AMD 770nb/SB700 southbridge. usb lockup

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Message-ID: <6077B97E85E7374DAE87B42B5AA9979709BBA3@sshaexmb1.amd.com>
Date:	Wed, 12 Nov 2008 10:13:39 +0800
From:	"Yang, Libin" <Libin.Yang@....com>
To:	"Volker Armin Hemmann" <volker.armin.hemmann@...clausthal.de>
CC:	"Greg KH" <greg@...ah.com>, <linux-kernel@...r.kernel.org>,
	<linux-usb@...r.kernel.org>, "Huang, Shane" <Shane.Huang@....com>
Subject: RE: 2.6.27: ehci bug with AMD 770nb/SB700 southbridge. usb lockup

Hello Volker,

Can you help dump out the PCI configuration information with lspci
-xxxx? Thanks.

Thanks & Regards,
Libin

> -----Original Message-----
> From: Volker Armin Hemmann
[mailto:volker.armin.hemmann@...clausthal.de]
> Sent: Friday, November 07, 2008 4:28 PM
> To: Yang, Libin
> Cc: Greg KH; linux-kernel@...r.kernel.org; linux-usb@...r.kernel.org;
> Huang, Shane
> Subject: Re: 2.6.27: ehci bug with AMD 770nb/SB700 southbridge. usb
lockup
> 
> Hi,
> when I load ohci-hcd first and ehci-hcd second and make sure that the
usb-
> port
> for the mouse does not share its interrupt with the graphic card,
> everything
> works (almost) fine. With big transfers from or to a harddisk in an
> enclosure
> the mouse is sometimes a bit jerky.
> 
> Bus 007 Device 001: ID 1d6b:0002
> Bus 006 Device 004: ID 05e3:0702 Genesys Logic, Inc. USB 2.0 IDE
Adapter
> Bus 006 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port
HUB
> Bus 006 Device 001: ID 1d6b:0002
> Bus 005 Device 001: ID 1d6b:0001
> Bus 004 Device 001: ID 1d6b:0001
> Bus 003 Device 001: ID 1d6b:0001
> Bus 002 Device 001: ID 1d6b:0001
> Bus 001 Device 005: ID 046d:c518 Logitech, Inc. MX610 Laser Cordless
Mouse
> Bus 001 Device 001: ID 1d6b:0001
> 
> bus 1 is ohci.
> bus 6 is ehci.
> 
> But if the mouse is connected to a ehci port or the ehci hub, as soon
as
> data
> transfers from or to an usb connected storage device starts, it will
lock
> up.


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