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Date: Fri, 13 Nov 2009 17:27:19 -0600 From: Robert Hancock <hancockrwd@...il.com> To: Alexander Holler <holler@...oftware.de> CC: linux-kernel@...r.kernel.org Subject: Re: Problems with p55-express and sleeping usb-hds On 11/13/2009 04:30 PM, Alexander Holler wrote: > Hello, > > I'm having a problem with kernels (x86_64) <=2.6.32-rc7 (that means all > kernels I tried, including the latest stable 2.6.31.6) on a Gigabyte > P55M-UD4 mb (Bios F4l) with an Intel Core i7 860 and sleeping usb-hds. > > I don't have the problems when using the same usb-drives on a laptop > with a core2duo (ICH8), so it seems to be a problem with the chipset > (p55-express). > > The problem seems to occur when the usb-drive goes to sleep (because of > inactivity) and the kernel tries to access them afterwards. > > Here are the excerpts from the log: > > ... > > (And here comes the problem)> > Nov 13 19:47:34 krabat kernel: [ 2655.981980] usb 9-7: reset high speed > USB device using ehci_hcd and address 3 > Nov 13 19:47:39 krabat kernel: [ 2661.120397] usb 9-7: device firmware > changed > Nov 13 19:47:39 krabat kernel: [ 2661.120489] usb 9-7: USB disconnect, > address 3 That sounds like the device started reporting a different firmware string after it woke up, and the kernel decided it wasn't the same device anymore and triggered a disconnect/reconnect.. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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