[Bug 1746666] Re: lspci fails with 'Error reading sysfs label: Operation not permitted'

[Andrea Bravetti]

Hi @sujithpandel,
tried with master branch of pciutils (3.5.6) and also with tags/v3.3.1:

In both case it work, I'm writing on my external monitor on DP-1-1 right
now.

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Title:
  lspci fails with 'Error reading sysfs label: Operation not permitted'

Status in dellserver:
  Fix Committed
Status in pciutils package in Ubuntu:
  Fix Released
Status in pciutils source package in Xenial:
  Fix Released

Bug description:
  Description:
  On a 4 socket server, when #lspci is run, it fails with output:
  lspci: Error reading /sys/bus/pci/devices/0000:9a:00.0/label: Operation not permitted

  How Reproducible:
  Always

  Version
  pciutils-3.3.1-1.1ubuntu1.1

  Steps:
  1. Install Ubuntu-Server-16.04.3
  2. Observe #lspci

  Additional Info:
  * Upstream master branch from pciutils works fine in this setup. (https://kernel.googlesource.com/pub/scm/utils/pciutils/pciutils/)

  * v3.4.0 also works fine in this setup.

  * v3.3.1 fails.

  * Going through code quickly, looks like one of the required patches is :
  https://kernel.googlesource.com/pub/scm/utils/pciutils/pciutils/+/ef6c9ec3a45992d9e7ef4716d444252baf2013e1

  Not sure what other patches might be required for fixing this.

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