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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1534311 Title: Excessive warnings regarding stat()ing of cgroup filesystems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lsof/+bug/1534311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs