<html>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Hello Arno,<br>
<br>
Can apply the patch directly or should I recompile nut?<br>
<br>
Best regards,<br>
Panagiotis<br>
<br>
<div class="moz-cite-prefix">On 3/4/2015 5:06 μμ, Arnaud Quette
wrote:<br>
</div>
<blockquote
cite="mid:CAFm_bUiDm0ka8FOXmZdtGAyae+5XVzQ5O5RLJ1B0aD+=VR=ZnQ@mail.gmail.com"
type="cite">
<div dir="ltr">Hello Panagiotis
<div class="gmail_extra"><br>
<div class="gmail_quote">2015-04-03 14:28 GMT+02:00 Panagiotis
Kritikakos <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:panagiotis.kritikakos@nikitec.gr"
target="_blank">panagiotis.kritikakos@nikitec.gr</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Hello Arno,<span
class=""><br>
<br>
<blockquote class="gmail_quote" style="margin:0px 0px
0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
Question: have you also tested oldmge-shut?<br>
Otherwise, that might be interesting to do so and send
back the results of these tests...<br>
</blockquote>
</span>
Yes, I've tried this as well with worse results
unfortunately. This driver seems to be even more unstable.
When it gets able to set communication with the UPS (which
is not always the case), it usually lost it again after a
while.<br>
<br>
~# /usr/local/libexec/nut/oldmge-shut -DD -a ups-filesrv01<br>
Network UPS Tools - Eaton / SHUT driver 0.70 (2.7.2)<span
class=""><br>
0.000000 debug level is '2'<br>
</span>
0.000882 entering upsdrv_initups()<br>
0.001019 entering shut_ups_start()<br>
<br>
0.028445 Communication with UPS established<br>
0.028457 entering shut_get_descriptor(n 21, 9)<br>
0.111394 shut_wait_ack(): ACK received<br>
0.185328 entering shut_get_descriptor(n 01, 18)<br>
0.273455 shut_wait_ack(): ACK received<br>
0.423238 Device Descriptor:<br>
bLength: 0x12<br>
bDescriptorType:
0x01<br>
bcdUSB: 0x0110<br>
bDeviceClass: 0x00<br>
bDeviceSubClass:
0x00<br>
bDeviceProtocol: 0x00<br>
bMaxPacketSize0:
0x08<br>
idVendor: 0x0463<br>
idProduct: 0xffff<br>
bcdDevice:
0x0100<br>
iManufacturer: 0x01<br>
iProduct:
0x02<br>
iSerialNumber: 0x03<br>
bNumConfigurations: 0x01<br>
<br>
0.423251 entering shut_get_descriptor(n 22, 1538)<br>
0.525087 shut_wait_ack(): ACK received<br>
9.705471 Unable to get Report Descriptor<br>
<br>
<br>
It there a possibility to be an issue of the UPS, or the
connection between the serial port of the machine and the
UPS?<br>
</blockquote>
<div><br>
<br>
</div>
<div>thanks for the confirmation with oldmge-shut. I'm not
astonished on the results, but was worth a try.<br>
<br>
</div>
<div>I've double checked the related code difference for
mge-shut between 2.7.1 and 2.7.2.<br>
</div>
<div>Again, the only diff I see is the one pointed
previously (setline...).<br>
</div>
<div>So, it would be great if you could test this patch
(through some reboots) and report back.<br>
</div>
<div><br>
</div>
<div>Then, I don't think it's an issue with the device.<br>
</div>
<div>There is a long run TODO (mentioned in the header of
libshut.c) that is the baudrate negotiation.<br>
</div>
<div>The driver still communicates at 2400bauds, which is
not that much for such verbose units. We could go at least
for 9600 on these units, which is 4 times faster already.<br>
</div>
<div>This may cause some slowness and behavior issues as
you're experiencing, under some circumstances.<br>
</div>
</div>
For example, the test using a 5SC750 on Linux (Debian Jessie)
shows that report descriptor (size 1538) takes ~10 seconds to
be retrieved, which is quite long.<br>
</div>
<div class="gmail_extra">Then, even if this "new"mge-shut is a
lot better than the oldmge-shut, it can still be perfected on
the error handling (and not optimal cases), which you may be
hitting.<br>
</div>
<div class="gmail_extra">And finally, the notification handling
could also help to poll less the unit, while being notified of
critical status changes.<br>
</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">cheers,<br clear="all">
</div>
<div class="gmail_extra">Arno<br>
</div>
<div class="gmail_extra">-- <br>
<div class="gmail_signature">
<div dir="ltr">Eaton Data Center Automation - Opensource
Leader<br>
NUT (Network UPS Tools) Project Leader - <a
moz-do-not-send="true"
href="http://www.networkupstools.org" target="_blank">http://www.networkupstools.org</a><br>
Debian Developer - <a moz-do-not-send="true"
href="http://www.debian.org" target="_blank">http://www.debian.org</a><br>
Free Software Developer - <a moz-do-not-send="true"
href="http://arnaud.quette.fr" target="_blank">http://arnaud.quette.fr</a><br>
<br>
</div>
</div>
</div>
</div>
</blockquote>
</body>
</html>