Nut upsuser - May 2008 - tripplite_usb/nut-2.2.1: Driver not connected.

Hi,

I'm using nut 2.2.1 on Ubuntu Hardy.  Everything is fine, upsc works, upsmon
is
working.  Then, after twenty minutes or an hour or maybe even longer, it all
breaks down and I see these messages in the log:

  May 22 13:39:04 logicserver upsmon[28319]: Poll UPS [tripplite at localhost]
failed - Driver not connected

Restarting upsd fixes the problem temporarily.

Any ideas?

Thanks,
Forest
-- 
Forest Bond
http://www.alittletooquiet.net
http://www.pytagsfs.org
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On Thu, May 22, 2008 at 1:39 PM, Forest Bond <forest at
alittletooquiet.net> wrote:
> Hi,
>
> I'm using nut 2.2.1 on Ubuntu Hardy.  Everything is fine, upsc works,
upsmon is
> working.  Then, after twenty minutes or an hour or maybe even longer, it
all
> breaks down and I see these messages in the log:
>
>  May 22 13:39:04 logicserver upsmon[28319]: Poll UPS [tripplite at
localhost] failed - Driver not connected
>
> Restarting upsd fixes the problem temporarily.
Is the driver still running at that point?

You might want to add a "*.debug" log file to /etc/syslog.conf to see
more of the messages - both upsd and the driver should complain before
exiting.

-- 
- Charles Lepple

[this didn't make it to the list the first time.]

On Wed, May 28, 2008 at 4:55 PM, Forest Bond <forest at
alittletooquiet.net> wrote:
> Hi,
>
> On Thu, May 22, 2008 at 07:13:25PM -0400, Charles Lepple wrote:
>> On Thu, May 22, 2008 at 1:39 PM, Forest Bond <forest at
alittletooquiet.net> wrote:
>> > I'm using nut 2.2.1 on Ubuntu Hardy.  Everything is fine, upsc
works, upsmon is
>> > working.  Then, after twenty minutes or an hour or maybe even
longer, it all
>> > breaks down and I see these messages in the log:
>> >
>> >  May 22 13:39:04 logicserver upsmon[28319]: Poll UPS [tripplite at
localhost] failed - Driver not connected
>> >
>> > Restarting upsd fixes the problem temporarily.
>>
>> Is the driver still running at that point?
>>
>> You might want to add a "*.debug" log file to
/etc/syslog.conf to see
>> more of the messages - both upsd and the driver should complain before
>> exiting.
>
> Ah:
>
> May 28 15:43:34 logicserver tripplite_usb[27408]: Error reading B value:
Device detached? (error 0: error sending control message: Operation not
permitted)
OK, that's weird. Usually, you would expect a permissions error only
when the driver starts up, not after it has been running for a while.

During the time before it crashes, what does the output from 'upsc' look
like?
> May 28 15:43:34 logicserver upsd[27410]: Data for UPS [tripplite] is stale
- check driver
> May 28 15:43:34 logicserver tripplite_usb[27408]: Reconnect attempt #1
> May 28 15:43:34 logicserver upsd[27410]: UPS [tripplite] disconnected -
check driver
> May 28 15:43:34 logicserver upsd[27410]: Can't connect to UPS
[tripplite] (tripplite_usb-tripplite): Connection refused
> May 28 15:43:34 logicserver kernel: [1257714.534999] tripplite_usb[27408]:
segfault at 0000001d eip b7e664ac esp bfd478a8 error 4
I have an old Tripp Lite UPS around here somewhere - maybe I can test with that.

I will see if I can uncover any generic bugs in the reconnection code,
but I am puzzled about the root cause.

--
- Charles Lepple



-- 
- Charles Lepple