Confirmed that bug only happens on Ubuntu 16.04, not on previous Ubuntu releases and not on Debian 8.3.
Machine has these OSes and can boot any at will, in case it helps: Debian stable (8.3), Xubuntu 16.04, Xubuntu 15.04, Linux Mint 17.2 (based on Ubuntu 14.04), Fedora 23 XFCE Edition. ** Summary changed: - script freezes and eats all CPU, has to be killed, which kills shell and programs inside + /usr/bin/script freezes and eats all CPU, has to be killed, which kills shell and programs inside -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to util-linux in Ubuntu. https://bugs.launchpad.net/bugs/1558236 Title: /usr/bin/script freezes and eats all CPU, has to be killed, which kills shell and programs inside Status in util-linux package in Ubuntu: New Bug description: # Context I've been using /usr/bin/script quite a lot for about 4 years (since about Ubuntu 12.04, maybe before). It always worked without problem. I'm using several script instance most of the time, in several terminals. Reproducible: randomly, once every few days. Problem happens since Ubuntu 16.04. Never seen before (12.04 12.10 13.04 13.10 14.04 14.10 15.04 15.10). # Expected Continued operation, terminal running programs normally, little CPU used. # Observed Suddenly, terminal freezes. Other tabs of same terminal window not affected. Top shows script consumes 100% CPU. Strace shows an endless stream of this line: poll([{fd=4, events=POLLIN}], 1, 10) = 1 ([{fd=4, revents=POLLIN}]) /proc/*/fd shows what file descriptor it is: total 0 dr-x------ 2 stephane stephane 0 mars 16 20:03 . dr-xr-xr-x 9 stephane stephane 0 mars 16 20:03 .. lrwx------ 1 stephane stephane 64 mars 16 20:15 0 -> /dev/pts/17 (deleted) lrwx------ 1 stephane stephane 64 mars 16 20:15 1 -> /dev/pts/17 (deleted) lrwx------ 1 stephane stephane 64 mars 16 20:03 2 -> /dev/pts/17 (deleted) lrwx------ 1 stephane stephane 64 mars 16 20:15 3 -> /dev/ptmx lrwx------ 1 stephane stephane 64 mars 16 20:15 4 -> /dev/pts/21 lrwx------ 1 stephane stephane 64 mars 16 20:15 5 -> anon_inode:[signalfd] l-wx------ 1 stephane stephane 64 mars 16 20:15 6 -> /somewhere/mylogfile.txt l-wx------ 1 stephane stephane 64 mars 16 20:15 7 -> /somewhere/mylogfile_timings.txt What can we do? ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: bsdutils 1:2.27.1-6ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-13.29-generic 4.4.5 Uname: Linux 4.4.0-13-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Mar 16 20:04:02 2016 ExecutablePath: /usr/bin/script InstallationDate: Installed on 2016-02-03 (41 days ago) InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160203) SourcePackage: util-linux UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1558236/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
