[Nut-upsdev] Getting 'Data stale' error with bcmxcp_usb for a PowerWare 5115 on OSX

[Charlie Garrison]

Good afternoon,

On 14/03/10 at 4:52 AM +1100, Charlie Garrison 
<garrison at zeta.org.au> wrote:

>>My reasoning for suggesting a launchd plist for the driver is 
>>that launchd can respawn the driver if necessary - which would 
>>be helpful in your case if the device disconnects. (However, I 
>>seem to remember that you said the driver still reports "data 
>>stale", which means it has not treated the error code as a 
>>"device disconnection". We need to work on that.)
>
>I don't believe I've had a 'data stale' error when running 
>driver in debug mode. Or maybe I'm not following what you're saying.

But I have now...  after running for around 8 hours in debug 
mode; I'm now getting "Data stale" errors via upsmon:

14/03/10 4:26:06 AM upsmon[15330] Communications with UPS 
powerware5115 at localhost established
14/03/10 4:54:13 AM upsmon[15330] UPS powerware5115 at localhost on battery
14/03/10 4:58:38 AM upsmon[15330] UPS powerware5115 at localhost on 
line power
14/03/10 12:29:13 PM upsmon[15330] Poll UPS 
[powerware5115 at localhost] failed - Data stale
14/03/10 12:29:13 PM upsmon[15330] Communications with UPS 
powerware5115 at localhost lost
14/03/10 12:29:18 PM upsmon[15330] Poll UPS 
[powerware5115 at localhost] failed - Data stale
14/03/10 12:29:23 PM upsmon[15330] Poll UPS 
[powerware5115 at localhost] failed - Data stale
14/03/10 12:29:28 PM upsmon[15330] Poll UPS 
[powerware5115 at localhost] failed - Data stale

And I'm not able to quit the driver now:

$ sudo killall -9 bcmxcp_usb
$ ps ax | grep bcmxcp
15641   ??  Us     0:22.34 /usr/local/ups/bin/bcmxcp_usb -D -a powerware5115

I can't unload that job via launchctl either. And since I was 
sending all the debug output to /dev/null, I don't have any 
clues from there. I'll test again without redirecting stderr (if 
I can figure out how to kill the driver). Can you suggest any 
way to kill the driver short of a restart?

And I answered my own question (leaving it here in case it helps 
someone else later). I re/plugged the UPS USB cable and the 
driver died. When/if I get the 'data stale' error again I'll 
send anything from the debug log that looks relevant.

Thanks,
Charlie

-- 
    Ꮚ Charlie Garrison ♊ <garrison at zeta.org.au>
    〠 PO Box 141, Windsor, NSW 2756, Australia

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