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---Problem Description---
sensors command is not getting executed in Ubuntu 14.04.3 on PowerNV 8335-GTA Hardware
 
Machine Type = P8 
 
---Steps to Reproduce---
Install a PowerNV 8335-GTA machine with Ubuntu 14.04.3 netboot images.
Then load the kernel module ibmpowernv on the same.

root@tul8p1:~# sensors
No sensors found!
Make sure you loaded all the kernel drivers you need.
Try sensors-detect to find out which these are.

root@tul8p1:~# sensors-detect
# sensors-detect revision 6170 (2013-05-20 21:25:22 +0200)
# DMI data unavailable, please consider installing dmidecode 2.7
# or later for better results.

This program will help you determine which kernel modules you need
to load to use lm_sensors most effectively. It is generally safe
and recommended to accept the default answers to all questions,
unless you know what you're doing.

Some south bridges, CPUs or memory controllers contain embedded sensors.
Do you want to scan for them? This is totally safe. (YES/no): YES
modprobe: FATAL: Module cpuid not found.
Failed to load module cpuid.
Silicon Integrated Systems SIS5595...                       No
VIA VT82C686 Integrated Sensors...                          No
VIA VT8231 Integrated Sensors...                            No
AMD K8 thermal sensors...                                   No
AMD Family 10h thermal sensors...                           No
AMD Family 11h thermal sensors...                           No
AMD Family 12h and 14h thermal sensors...                   No
AMD Family 15h thermal sensors...                           No
AMD Family 15h power sensors...                             No
AMD Family 16h power sensors...                             No
Intel digital thermal sensor...                             No
Intel AMB FB-DIMM thermal sensor...                         No
VIA C7 thermal sensor...                                    No
VIA Nano thermal sensor...                                  No

Lastly, we can probe the I2C/SMBus adapters for connected hardware
monitoring devices. This is the most risky part, and while it works
reasonably well on most systems, it has been reported to cause trouble
on some systems.
Do you want to probe the I2C/SMBus adapters now? (YES/no): YES
Sorry, no supported PCI bus adapters found.

Next adapter: p8_00000008_e0p0 (i2c-0)
Do you want to scan it? (YES/no/selectively): YES
Client found at address 0x50
Handled by driver `at24' (already loaded), chip type `24c128'
    (note: this is probably NOT a sensor chip!)
Client found at address 0x51
Handled by driver `at24' (already loaded), chip type `24c128'
    (note: this is probably NOT a sensor chip!)

Next adapter: p8_00000008_e0p1 (i2c-1)
Do you want to scan it? (YES/no/selectively): YES
Client found at address 0x50
Handled by driver `at24' (already loaded), chip type `24c128'
    (note: this is probably NOT a sensor chip!)
Client found at address 0x51
Handled by driver `at24' (already loaded), chip type `24c128'
    (note: this is probably NOT a sensor chip!)

Next adapter: p8_00000000_e0p0 (i2c-2)
Do you want to scan it? (YES/no/selectively): YES
Client found at address 0x50
Handled by driver `at24' (already loaded), chip type `24c128'
    (note: this is probably NOT a sensor chip!)
Client found at address 0x51
Handled by driver `at24' (already loaded), chip type `24c128'
    (note: this is probably NOT a sensor chip!)

Next adapter: p8_00000000_e0p1 (i2c-3)
Do you want to scan it? (YES/no/selectively): YES
Client found at address 0x50
Handled by driver `at24' (already loaded), chip type `24c128'
    (note: this is probably NOT a sensor chip!)
Client found at address 0x51
Handled by driver `at24' (already loaded), chip type `24c128'
    (note: this is probably NOT a sensor chip!)

Sorry, no sensors were detected.
Either your system has no sensors, or they are not supported, or
they are connected to an I2C or SMBus adapter that is not
supported. If you find out what chips are on your board, check
http://www.lm-sensors.org/wiki/Devices for driver status.

root@tul8p1:~# lsmod | grep ibm
ibmpowernv              4808  0

root@tul8p1:~# ls -l /sys/class/hwmon/
total 0
lrwxrwxrwx 1 root root 0 Jul  7 07:46 hwmon0 -> ../../devices/platform/opal-sensor/hwmon/hwmon0

root@tul8p1:~# dpkg --list | grep lm-sensors
ii  lm-sensors                                 1:3.3.4-2ubuntu1                           ppc64el      utilities to read temperature/voltage/fan sensors

 
---uname output---
Linux tul8p1 3.19.0-22-generic #22~14.04.1-Ubuntu SMP Wed Jun 17 10:03:39 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux
 
---Debugger---
A debugger is not configured
 
Contact Information = pavsubra@xxxxxxxxxx 
 
Userspace tool common name: /usr/bin/sensors 

Userspace rpm: lm-sensors-3.3.4-2 
 
System Dump Info:
  The system is not configured to capture a system dump.
 
Stack trace output:
 no
 
Oops output:
 no
 
The userspace tool has the following bit modes: 64-bit

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: architecture-ppc64le bot-comment bugnameltc-127378 severity-critical targetmilestone-inin14043
-- 
sensors command is not getting executed in Ubuntu 14.04.3 on PowerNV 8335-GTA Hardware
https://bugs.launchpad.net/bugs/1472549
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