Public bug reported:
Every invocation of lsof results in 24 lines of warnings being printed
to stderr. This is excessive and, at least for my use cases, not useful
information.
$ mkdir foo && lsof +D foo
lsof: WARNING: can't stat() tmpfs file system /run/lxcfs/controllers
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system
/run/lxcfs/controllers/name=systemd
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system
/run/lxcfs/controllers/cpu,cpuacct
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system /run/lxcfs/controllers/pids
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system /run/lxcfs/controllers/cpuset
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system
/run/lxcfs/controllers/net_cls,net_prio
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system /run/lxcfs/controllers/devices
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system /run/lxcfs/controllers/freezer
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system /run/lxcfs/controllers/perf_event
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system /run/lxcfs/controllers/hugetlb
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system /run/lxcfs/controllers/memory
Output information may be incomplete.
lsof: WARNING: can't stat() cgroup file system /run/lxcfs/controllers/blkio
Output information may be incomplete.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: lsof 4.89+dfsg-0.1
ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3
Uname: Linux 4.3.0-5-generic x86_64
ApportVersion: 2.19.3-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jan 14 21:12:45 2016
InstallationDate: Installed on 2014-03-16 (668 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140316)
SourcePackage: lsof
UpgradeStatus: Upgraded to xenial on 2015-11-22 (52 days ago)
** Affects: lsof (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1534311
Title:
Excessive warnings regarding stat()ing of cgroup filesystems
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