Public bug reported: When a pipeline job is suspended and then backgrounded, 'jobs -l' incorrectly lists the status of all but the first command in the pipeline.
For example: % cp /dev/null /tmp/emptyfile && tail -F /tmp/emptyfile | fgrep hello | sed 's/^/received: /' ^Z zsh: suspended tail -F /tmp/emptyfile | fgrep hello | sed 's/^/received: /' % jobs -l [1] + 8096 suspended tail -F /tmp/emptyfile | 8097 suspended fgrep hello | 8098 suspended sed 's/^/received: /' The confusion begins after the 'bg' command: % bg [1] + continued tail -F /tmp/emptyfile | fgrep hello | sed 's/^/received: /' % jobs -l [1] + 8096 running tail -F /tmp/emptyfile | 8097 unknown signal (core dumped) fgrep hello | 8098 unknown signal (core dumped) sed 's/^/received: /' The status above is wrong; both fgrep and sed are in fact running fine: % echo hello world >> /tmp/emptyfile % kill 8096 # flush the pipeline % received: hello world [1] + terminated tail -F /tmp/emptyfile | done fgrep hello | sed 's/^/received: /' % Note also that the final status, printed when the commands actually exit, is correct ('done'). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: zsh 5.1.1-1ubuntu2 ProcVersionSignature: Ubuntu 4.4.0-70.91-generic 4.4.49 Uname: Linux 4.4.0-70-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: GNOME-Flashback:Unity Date: Tue Mar 28 18:58:32 2017 InstallationDate: Installed on 2017-03-27 (1 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) SourcePackage: zsh UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: zsh (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/1677082 Title: after suspend and bg, normally running pipeline job labeled "unknown signal (core dumped)" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zsh/+bug/1677082/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs