kernel 2.6.20 works poorly with Zaurus

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Hello,

Recently I upgraded kernel on my desktop to 2.6.20.

Since then, each time I plug in the Zaurus SL-5500 into the USB craddle, the
"zaurus" kernel module fails to configure, endlessly printing following
messages into dmesg:

Feb 28 10:32:56 arieh-desktop kernel: usb 3-1: new full speed USB device
using uhci_hcd and address 5
Feb 28 10:32:56 arieh-desktop kernel: usb 3-1: configuration #1 chosen from
1 choice
Feb 28 10:32:56 arieh-desktop kernel: usb0: register 'zaurus' at
usb-0000:00:1d.1-1, Sharp Zaurus SL-5x00, 0a:c6:95:39:f2:b2
Feb 28 10:32:57 arieh-desktop kernel: hub 3-0:1.0: port 1 disabled by hub
(EMI?), re-enabling...
Feb 28 10:32:57 arieh-desktop kernel: usb 3-1: USB disconnect, address 5
Feb 28 10:32:57 arieh-desktop kernel: usb0: unregister 'zaurus' usb-0000:00:
1d.1-1, Sharp Zaurus SL-5x00

On machine with 2.6.17, I don't see such problem.

If I remove and reinsert all usb related modules twice, the kernel is able
to configure the "zaurus" module, and connection works:

rmmod zaurus cdc_ether usbnet
rmmod ohci_hcd usbhid uhci_hcd ehci_hcd usb_storage usbcore
sleep 1
for module in zaurus usbhid ohci_hcd ehci_hcd uhci_hcd;
{
    modprobe $module
}

Have anybody seen the problem?

-- 
Arieh

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Hello,<br><br>Recently I upgraded kernel on my desktop to 2.6.20.<br><br>Since then, each time I plug in the Zaurus SL-5500 into the USB craddle, the &quot;zaurus&quot; kernel module fails to configure, endlessly printing following messages into dmesg:
<br><br style="font-style: italic;"><span style="font-style: italic;">Feb 28 10:32:56 arieh-desktop kernel: usb 3-1: new full speed USB device using uhci_hcd and address 5</span><br style="font-style: italic;"><span style="font-style: italic;">
Feb 28 10:32:56 arieh-desktop kernel: usb 3-1: configuration #1 chosen from 1 choice</span><br style="font-style: italic;"><span style="font-style: italic;">Feb 28 10:32:56 arieh-desktop kernel: usb0: register &#39;zaurus&#39; at usb-0000:00:
1d.1-1, Sharp Zaurus SL-5x00, 0a:c6:95:39:f2:b2</span><br style="font-style: italic;"><span style="font-style: italic;">Feb 28 10:32:57 arieh-desktop kernel: hub 3-0:1.0: port 1 disabled by hub (EMI?), re-enabling...</span>
<br style="font-style: italic;"><span style="font-style: italic;">Feb 28 10:32:57 arieh-desktop kernel: usb 3-1: USB disconnect, address 5</span><br style="font-style: italic;"><span style="font-style: italic;">Feb 28 10:32:57 arieh-desktop kernel: usb0: unregister &#39;zaurus&#39; usb-0000:00:
1d.1-1, Sharp Zaurus SL-5x00</span><br style="font-style: italic;"><br clear="all">On machine with 2.6.17, I don&#39;t see such problem.<br><br>If I remove and reinsert all usb related modules twice, the kernel is able to configure the &quot;zaurus&quot; module, and connection works:
<br><br style="font-style: italic;"><span style="font-style: italic;">rmmod zaurus cdc_ether usbnet</span><br style="font-style: italic;"><span style="font-style: italic;">rmmod ohci_hcd usbhid uhci_hcd ehci_hcd usb_storage usbcore
</span><br style="font-style: italic;"><span style="font-style: italic;">sleep 1</span><br style="font-style: italic;"><span style="font-style: italic;">for module in zaurus usbhid ohci_hcd ehci_hcd uhci_hcd;</span><br style="font-style: italic;">
<span style="font-style: italic;">{</span><br style="font-style: italic;"><span style="font-style: italic;">&nbsp;&nbsp;&nbsp; modprobe $module</span><br style="font-style: italic;"><span style="font-style: italic;">}</span><br style="font-style: italic;">
<br>Have anybody seen the problem?<br><br>-- <br>Arieh

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