Activity log for bug #1553353

Date Who What changed Old value New value Message
2016-03-04 20:38:12 Simon Déziel bug added bug
2016-03-05 13:23:48 Simon Déziel util-linux (Ubuntu): status New Confirmed
2016-03-07 13:52:30 Alberto Salvia Novella util-linux (Ubuntu): importance Undecided High
2016-03-07 20:13:56 Brian Murray tags amd64 apport-bug package-from-proposed xenial amd64 apport-bug package-from-proposed regression-release xenial
2016-03-07 20:14:05 Brian Murray nominated for series Ubuntu Xenial
2016-03-07 20:14:05 Brian Murray bug task added util-linux (Ubuntu Xenial)
2016-04-13 00:12:13 Simon Déziel description Steps to reproduce: 1) Start script session (same issue when script is saving to /dev/null) script # or: script /dev/null 2) Tail a file tail -f /var/log/syslog 3) Press "Enter" 2 times 4) Notice the script process taking 100% CPU This regression is rather new but I don't know which update introduced it. Reverting util-linux/bsdutils to the previous version doesn't help so maybe it's not even script's fault. tail/coreutils hasn't been update in a long time so I'm not sure who's fault it is. I can reproduce the problem with kernel 4.4.0-9-generic and 4.4.0-10-generic. $ lsb_release -rd Description: Ubuntu Xenial Xerus (development branch) Release: 16.04 $ apt-cache policy util-linux bsdutils coreutils util-linux: Installed: 2.27.1-4ubuntu1 Candidate: 2.27.1-4ubuntu1 Version table: *** 2.27.1-4ubuntu1 500 500 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 Packages 100 /var/lib/dpkg/status 2.27.1-3ubuntu1 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages bsdutils: Installed: 1:2.27.1-4ubuntu1 Candidate: 1:2.27.1-4ubuntu1 Version table: *** 1:2.27.1-4ubuntu1 500 500 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 Packages 100 /var/lib/dpkg/status 1:2.27.1-3ubuntu1 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages coreutils: Installed: 8.25-2ubuntu2 Candidate: 8.25-2ubuntu2 Version table: *** 8.25-2ubuntu2 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: util-linux 2.27.1-4ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-10.25-generic 4.4.3 Uname: Linux 4.4.0-10-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CurrentDesktop: Unity Date: Fri Mar 4 15:14:15 2016 SourcePackage: util-linux UpgradeStatus: No upgrade log present (probably fresh install) Steps to reproduce: 1) Start script session (same issue when script is saving to /dev/null) script # or: script /dev/null 2) Tail a file tailf /var/log/syslog 3) Press "Enter" 2 times 4) Notice the script process taking 100% CPU This regression was introduced upstream by this commit: https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=54c6611d6f7b73609a5331f4d0bcf63c4af6429e $ lsb_release -rd Description: Ubuntu Xenial Xerus (development branch) Release: 16.04 $ apt-cache policy util-linux bsdutils coreutils util-linux:   Installed: 2.27.1-4ubuntu1   Candidate: 2.27.1-4ubuntu1   Version table:  *** 2.27.1-4ubuntu1 500         500 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 Packages         100 /var/lib/dpkg/status      2.27.1-3ubuntu1 500         500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages bsdutils:   Installed: 1:2.27.1-4ubuntu1   Candidate: 1:2.27.1-4ubuntu1   Version table:  *** 1:2.27.1-4ubuntu1 500         500 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 Packages         100 /var/lib/dpkg/status      1:2.27.1-3ubuntu1 500         500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages coreutils:   Installed: 8.25-2ubuntu2   Candidate: 8.25-2ubuntu2   Version table:  *** 8.25-2ubuntu2 500         500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages         100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: util-linux 2.27.1-4ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-10.25-generic 4.4.3 Uname: Linux 4.4.0-10-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CurrentDesktop: Unity Date: Fri Mar 4 15:14:15 2016 SourcePackage: util-linux UpgradeStatus: No upgrade log present (probably fresh install)
2016-04-13 00:20:56 Simon Déziel bug watch added http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=820843
2016-04-13 00:20:56 Simon Déziel bug task added util-linux (Debian)
2016-04-13 01:48:40 Bug Watch Updater util-linux (Debian): status Unknown New
2016-04-13 15:34:08 Simon Déziel attachment added lp1553353.debdiff https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1553353/+attachment/4635719/+files/lp1553353.debdiff
2016-04-13 16:23:01 Ubuntu Foundations Team Bug Bot tags amd64 apport-bug package-from-proposed regression-release xenial amd64 apport-bug package-from-proposed patch regression-release xenial
2016-04-13 16:23:13 Ubuntu Foundations Team Bug Bot bug added subscriber Ubuntu Sponsors Team
2016-04-13 16:45:02 Martin Pitt util-linux (Ubuntu Xenial): status Confirmed Fix Committed
2016-04-13 19:30:32 Launchpad Janitor util-linux (Ubuntu Xenial): status Fix Committed Fix Released
2016-04-14 02:38:21 Bug Watch Updater util-linux (Debian): status New Confirmed
2016-10-25 12:32:45 Bug Watch Updater util-linux (Debian): status Confirmed Fix Released