[Nut-upsdev] Error "Data for UPS [pcmusb] is stale - check driver"

Sun Feb 2 18:18:15 GMT 2025

OpenWRT version 23.05.0-rc3 is, for starters, not supported anymore by 
the OpenWRT project, and is old.

The current version is OpenWRT 23.05.05

The reason you are likely getting an old version of NUT when you load 
the nut package is because you are using an old version of openwrt.

Your team needs to sysupdate your 4G LTE Wifi router

You also, in my opinion, need to seriously reconsider running NUT on an 
openwrt router.  The reason why is that NUT generates logfiles and 
writes to the filesystem.

The flash chips that are used on routers are not designed like a USB 
flash stick where they are intended to have a read/write filesystem on 
them.  They have no bad block management with NAND flash chips.  That is 
provided by a UBI layer.  You can read about that here:

[OpenWrt Wiki] The OpenWrt Flash Layout 
<https://openwrt.org/docs/techref/flash.layout>

SOME of the NAND devices that OpenWRT has been ported to, DO have 
complete UBI support, others don't.  You did not say what model of 
router you are running - but unless you have researched it and are 
completely sure that it has a fully functional bad block management, you 
can easily cause problems over time attempting to run programs on an 
OpenWRT router.

In general it's safest to run READ ONLY programs on openwrt.  For 
example, the snmpd server.  Programs that WRITE to the filesystem on the 
OpenWRT router should be avoided.

There's a reason we use hard drives on servers.

Ted

On 1/30/2025 7:50 PM, Rushabh Sanghavi (Rush) wrote:
>
> Dear NUT Developers,
>
> A very good morning to you and hope that you are in the best of health 
> and spirits.
>
> For an upcoming UPS Project, our team has been testing Powercom’s 
> Cleanline T-1500 UPS model whose photo has been attached with this 
> e-mail. Our team has been testing this UPS with one of our 4G LTE WiFi 
> router models on which Network UPS Tools (NUT) Version 2.8.0-3 has 
> been installed. BUT during the testing our team observed multiple 
> instances of error message *"Data for UPS [pcmusb] is stale - check 
> driver"* being randomly reported by our 4G LTE WiFi router. Here is 
> the SUMMARY of the issue below for clear understanding purposes.
>
>   * NUT Version 2.8.0-3 was installed on our 4G LTE WiFi router by our
>     team.
>   * Also our 4G LTE WiFi router had Linux Kernel Version 5.15.127,
>     OpenWRT Distribution release “23.05.0-rc3” and OpenWRT
>     Distribution Revision “r23389-5deed175a5” installed on it.
>   * Powercom’s Cleanline T-1500 UPS was connected with our 4G LTE WiFi
>     router via USB to USB Cable Connection (i.e. USB Port on router
>     side and USB Port on UPS side)
>
> Now when NUT installed on our 4G LTE WiFi router model unit tried to 
> poll and fetch values of different UPS parameters from Powercom’s 
> Cleanline T-1500 UPS model
>
> after both UPS and router had been running for sometime (i.e. for 
> random period of time):
>
>       o router started reporting the error message *“Data for UPS
>         [pcmusb] is stale - check driver”*
>       o after that router could not get UPS’s status any more unless
>         we restart the NUT service
>       o and the router started reporting the error message “Data for
>         UPS [pcmusb] is stale - check driver” after running for
>         sometime again
>
> Note: *[pcmusb]* represents the *name or identifier* assigned to the 
> UPS instance within the NUT (Network UPS Tools) configuration
>
>   * Our team tried to increase value of NUT’s timers such as
>     “pollinterval”, “pollfreq”, “maxage” but still the issue could not
>     get solved or fixed
>   * Kindly NOTE that our team tested the above with both the NUT
>     Drivers i.e. blazer_usb and nutdrv_qx. But the same error message
>     mentioned above was observed.
>   * Also kindly NOTE that our team also tried to test with NUT Driver
>     “usbhid-ups” but it is seems that this particular Driver is not
>     supported by Powercom’s Cleanline T-1500 UPS model whose photo has
>     been attached with this e-mail.
>   * Currently our team is not 100% sure about the exact root cause.
>
> Our team need to know the following from NUT Developers.
>
>   * Which the is correct NUT Driver that our team need to use on the
>     4G LTE WiFi router so that it can communicate smoothly and
>     successfully with Powercom’s Cleanline T-1500 UPS model whose
>     photo has been attached with this e-mail?
>   * Which specific parameters within the default Configuration
>     Settings file of NUT Version 2.8.0-3 on our 4G LTE WiFi router
>     need to be tweaked / changed so that our 4G LTE WiFi router model
>     can communicate with the Powercom’s Cleanline T-1500 UPS model
>     smoothly and successfully?
>   * Which specific parameters within the default ups.conf / upsd.conf
>     file on our 4G LTE WiFi router needs to be tweaked / changed so
>     that our 4G LTE WiFi router model can communicate with the
>     Powercom’s Cleanline T-1500 UPS model smoothly and successfully?
>
> Also I am hereby attaching the Log Files with the Log Messages 
> reported on our 4G LTE WiFi router model. The 1st Log file contains 
> Log Messages during testing with NUT Driver “blazer_usb” while the 2nd 
> Log file contains Log Messages during testing with NUT Driver 
> “nutdrv_qx”. You will observe the ERROR Message *“Data for UPS 
> [pcmusb] is stale - check driver”* within both these attached Log Files.
>
> Awaiting your swift response back.
>
> Thanking you,
>
> Yours sincerely,
>
> Legs Logo
>
> *Rushabh N. S***
>
> *Research and Development Director*
>
> *PP Ontime Company Limited*
>
> *PP Group of Companies*
>
> Address: 1011 Supalai Grand Tower,
>
> 16th Floor, Rama 3 Road,
>
> Chongnonsi, Yannawa,
>
> Bangkok – 10120, Thailand
>
> Landline No: +66-2-0562099 Ext. 2201
>
> Fax No: +66-2-0562088
>
> Cell Phone No: +66-8-59118578 / +66-6-22236221
>
> E-mail: rushabh at pp-ontime.co.th <mailto:rushabh at pp-ontime.co.th>
>
> Web: www.pp-ontime.co.th <http://www.pp-ontime.co.th>
>
> Skype ID: rushabh.sanghavi
>
> *Disclaimer:*
>
> ***************************************************************
> *Important*
> Confidentiality: This Information is intended for the above-named 
> person and may contain confidential and/or legally privileged 
> material. Any opinions expressed in this information are not 
> necessarily those of the company. If it has come to you in error you 
> must take no action based on it, nor must you copy or show it to 
> anyone; please delete/destroy and inform the sender immediately.
>
> *Monitoring/Viruses/Malwares*
> PP-Ontime reserves the right to monitor all incoming and outgoing 
> emails via PP-Ontime's systems. Although we have security program to 
> monitor and eliminate virus/malware, we also advise that in keeping 
> with good computing practice the recipient should ensure they are 
> actually virus/malwares free.
> ***************************************************************
>
>
>       Disclaimer:
>
> ***********************************************************************************************
> *Important*
> Confidentiality: This Information is intended for the above-named 
> person and may contain confidential and/or legally privileged 
> material. Any opinions expressed in this information are not 
> necessarily those of the company. If it has come to you in error you 
> must take no action based on it, nor must you copy or show it to 
> anyone; please delete/destroy and inform the sender immediately. 
> *Monitoring/Viruses/Malwares*
> PP-Ontime reserves the right to monitor all incoming and outgoing 
> emails via PP-Ontime's systems. Although we have security program to 
> monitor and eliminate virus/malware, we also advise that in keeping 
> with good computing practice the recipient should ensure they are 
> actually virus/malwares free.
> ********************************************************************************************** 
>
>
> _______________________________________________
> Nut-upsdev mailing list
> Nut-upsdev at alioth-lists.debian.net
> https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsdev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://alioth-lists.debian.net/pipermail/nut-upsdev/attachments/20250202/912b555b/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 4031 bytes
Desc: not available
URL: <http://alioth-lists.debian.net/pipermail/nut-upsdev/attachments/20250202/912b555b/attachment-0001.jpg>