Re: 2.6.31.4: USB/UPS connectivity issue on Intel DP55KG Motherboard[DEBUG logs included upsd/upsmon/usbhid-ups]

From: Justin Piszcz
Date: Mon Oct 19 2009 - 11:14:09 EST




On Mon, 19 Oct 2009, Alan Stern wrote:

On Sun, 18 Oct 2009, Justin Piszcz wrote:

Thanks Alan,

I have performed all of the steps you recommended, there is also a bug in
the docs, the directory seems to be different, or at least if you have
everything compiled into the kernel and not using modules.

Start nut:
# /etc/init.d/nut start
Starting Network UPS Tools: upsdrvctl upsd upsmon.

Within ~20-30 seconds it already broke:
============================================================================
Broadcast Message from nut@xxxxxxxxxxxxxxxx
(somewhere) at 17:22 ...

Well, the usbmon trace shows that wherever the problem lies, it isn't
in the kernel. There were a few problems in the device itself -- it
was queried for a report and did not provide any data. The nut program
should be smart enough to retry when this happens, but it didn't.

It did try to re-establish communcation with the device, but it appears
that nut got caught in a loop during this attempt. During this loop
nut did nothing but transfer a bunch of string descriptors from the
device, over and over again at 2-second intervals. The loop lasted for
almost a minute, until another device error occurred. Then nut
recovered properly -- until a third error happened and nut got stuck in
its loop again.

Alan Stern


Hi,

To the nut list, the last time nut changed was 2009-06-13:

2009-06-13 04:29:25 configure nut-cgi 2.4.1-3 2.4.1-3
2009-06-13 04:29:25 status unpacked nut-cgi 2.4.1-3
2009-06-13 04:29:25 status unpacked nut-cgi 2.4.1-3
2009-06-13 04:29:25 status unpacked nut-cgi 2.4.1-3
2009-06-13 04:29:25 status unpacked nut-cgi 2.4.1-3
2009-06-13 04:29:25 status unpacked nut-cgi 2.4.1-3
2009-06-13 04:29:25 status half-configured nut-cgi 2.4.1-3
2009-06-13 04:29:26 status installed nut-cgi 2.4.1-3

I made no changes to the nut configuration or install.

What did change was the motherboard.

From: Intel DG965WH -> Intel DP55KG

Then this problem began.

Justin.

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