** Description changed: 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 + tailf /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. - + 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 + 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 + 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 + 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)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553353 Title: tail'ing a file in a script session hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1553353/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
