lm-sensors is throwing "ERROR: Can't get value of subfeature temp1_input: I/O error" for be2net driver

Bug #1607387 reported by bugproxy
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Fix Released
Undecided
Unassigned
Xenial
Fix Released
Undecided
Tim Gardner

Bug Description

== Comment: #17 - Guilherme Guaglianoni Piccoli - 2016-07-27 18:49:08 ==
Temperature and fan information from hardware are normally available to userspace through hwmon sysfs abstraction. In case of be2net driver, all PCI devices "managed" by this driver have hwmon entries, which are filled in a delayed workqueue on driver, every 64 seconds.

The issue we're seeing is that the hardware temperature queries to devices' fw are performed only in devices which interface is up - so, we end up having messages like below when using the "sensors" tool (from lm-sensors), for example:

be2net-pci-50100
Adapter: PCI adapter
ERROR: Can't get value of subfeature temp1_input: I/O error
temp1: N/A

The following upstream commit addresses this issue:

d3480615cf ("be2net: perform temperature query in adapter regardless of its interface state")
[https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/commit/?id=d3480615cf00c6f615cdb61a9d03386574b93342]

We would like Canonical to merge this commit in the Xenial kernel.

Thanks in advance,

Guilherme

bugproxy (bugproxy)
tags: added: architecture-ppc64le bugnameltc-143844 severity-high targetmilestone-inin16041
Changed in ubuntu:
assignee: nobody → Taco Screen team (taco-screen-team)
affects: ubuntu → linux (Ubuntu)
Kevin W. Rudd (kevinr)
summary: - [LTCTest][Opal][FW860] Ubuntu: lm-sensors is throwing "ERROR: Can't get
- value of subfeature temp1_input: I/O error" for be2net driver
+ lm-sensors is throwing "ERROR: Can't get value of subfeature
+ temp1_input: I/O error" for be2net driver
Revision history for this message
Tim Gardner (timg-tpi) wrote :
Changed in linux (Ubuntu Xenial):
assignee: nobody → Tim Gardner (timg-tpi)
status: New → In Progress
Revision history for this message
Tim Gardner (timg-tpi) wrote :

Merged with 4.8

Changed in linux (Ubuntu):
assignee: Taco Screen team (taco-screen-team) → nobody
status: New → Fix Released
Changed in linux (Ubuntu Xenial):
status: In Progress → Fix Committed
Revision history for this message
bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2016-08-16 06:40 EDT-------
*** Bug 144869 has been marked as a duplicate of this bug. ***

Revision history for this message
Stefan Bader (smb) wrote :

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-xenial' to 'verification-done-xenial'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-xenial
Revision history for this message
bugproxy (bugproxy) wrote :

------- Comment From <email address hidden> 2016-08-16 18:32 EDT-------
Checked on proposed kernel 4.4.0-36 and everything is working fine.
Marking as "verification-done-xenial".

Cheers,

Guilherme

tags: added: verification-done-xenial
removed: verification-needed-xenial
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (13.4 KiB)

This bug was fixed in the package linux - 4.4.0-36.55

---------------
linux (4.4.0-36.55) xenial; urgency=low

  [ Stefan Bader ]

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linux (4.4.0-35.54) xenial; urgency=low

  [ Stefan Bader ]

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  * Tunnel offload indications not stripped from encapsulated packets, causing
    performance overhead (LP: #1602755)
    - tunnels: Remove encapsulation offloads on decap.

  * lm-sensors is throwing "ERROR: Can't get value of subfeature temp1_input:
    I/O error" for be2net driver (LP: #1607387)
    - be2net: perform temperature query in adapter regardless of its interface
      state

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      lpfc_send_taskmgmt()

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    - SAUCE: cxlflash: Verify problem state area is mapped before notifying
      shutdown

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    - mac80211: fix fast_tx header alignment
    - mac80211: mesh: flush mesh paths unconditionally
    - mac80211_hwsim: Add missing check for HWSIM_ATTR_SIGNAL
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Changed in linux (Ubuntu Xenial):
status: Fix Committed → Fix Released
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