Public bug reported: Ubuntu release: Description: Ubuntu 16.10 Release: 16.10
Package & version: esix: Installed: 1-2ubuntu1 Candidate: 1-2ubuntu1 Version table: *** 1-2ubuntu1 500 500 http://ca.archive.ubuntu.com/ubuntu yakkety/multiverse amd64 Packages 500 http://ca.archive.ubuntu.com/ubuntu yakkety/multiverse i386 Packages 100 /var/lib/dpkg/status Expected results: 1. Launch esix in terminal 2. Interact with ESI-X language REPL Actual results: 1. Launch esix in terminal 2. Interact with ESI-X language REPL 3. Computer CPU usage climbs to 100% as REPL busy-waits for input. Suggested bug fix: Modify /usr/share/esix/esix.cfg from: load esix.bin run 5400 to set cpu idle load esix.bin run 5400 This will cause the simh PDP-8 emulator that runs the ESI-X binary to throttle down when it detects a busy loop. It may take 25-30 seconds for CPU usage to calm down. Severity: Low, but rampant CPU usage is a bit rude. Notes: 1. This is almost certainly an upstream bug, but the Debian maintainer has abandoned the package. 2. It may be helpful to note in the documentation that esix can be exited by typing Ctrl-E, then `quit` from the PDP-8 simulator shell. 3. (aside) The esix code is now over 50 years old, making it likely the oldest running Debian/Ubuntu package ... ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: esix 1-2ubuntu1 ProcVersionSignature: Ubuntu 4.8.0-34.36-generic 4.8.11 Uname: Linux 4.8.0-34-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 CurrentDesktop: Unity Date: Mon Jan 30 16:25:49 2017 Dependencies: gcc-6-base 6.2.0-5ubuntu12 libc6 2.24-3ubuntu2 libgcc1 1:6.2.0-5ubuntu12 libpcap0.8 1.7.4-2 simh 3.8.1-5build1 InstallationDate: Installed on 2015-03-08 (694 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) PackageArchitecture: all SourcePackage: esix UpgradeStatus: Upgraded to yakkety on 2016-12-02 (59 days ago) ** Affects: esix (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug yakkety -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1660456 Title: esix package consumes 100% cpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/esix/+bug/1660456/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs