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From: Volker Armin Hemmann <>
To: "Yang, Libin" <>
Cc: "Greg KH" <>,,, "Huang,
	Shane" <>
Subject: Re: 2.6.27: ehci bug with AMD 770nb/SB700 southbridge. usb lockup
Date: Fri, 7 Nov 2008 09:27:56 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

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.

  parent reply	other threads:[~2008-11-07  8:29 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-30  1:15 Volker Armin Hemmann
2008-10-30  5:54 ` Greg KH
2008-10-30  7:34   ` Yang, Libin
2008-10-30 16:19     ` Volker Armin Hemmann
2008-10-30 16:35     ` Volker Armin Hemmann
2008-11-07  8:27     ` Volker Armin Hemmann [this message]
2008-11-12  2:13       ` Yang, Libin
2008-11-12  5:49         ` Volker Armin Hemmann
2008-10-30 16:16   ` Volker Armin Hemmann

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