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First off, for those who don’t know … pwsh refers to PowerShell Core, the open-source, cross-platform version of PowerShell. I use it as my default shell.

Description

• When running Ion inside pwsh inside bash, program exit stops the pwsh job in bash.
• When running Ion inside pwsh running directly in a terminal emulator, program exit causes pwsh to crash.
• Exiting Ion from inside pwsh inside pwsh causes both pwsh instances to crash or be suspended respectively.

These things happen regardless of what Ion does, be it displaying help or version, running commands directly, or an interactive session.

This does not happen when running Ion as a direct command (like pwsh -c ion), nor when running it from piped input (like echo ion | pwsh); only when running it from an interactive session and typing the command directly.

This happens both in gnome-terminal and the Linux console.

Ion is the only program I have ever had this issue with.

Since this is a very niche issue, I’d be willing to look into this myself.

Details

Log for the first variant:

andreas@ak-ubuntu:~/programming/rust/ion$ pwsh
PowerShell 6.1.2
Copyright (c) Microsoft Corporation. All rights reserved.

https://aka.ms/pscore6-docs
Type 'help' to get help.

PS /home/andreas/programming/rust/ion> ./target/release/ion -c "echo test"
test

[1]+  Stopped                 pwsh
andreas@ak-ubuntu:~/programming/rust/ion$ jobs
[1]+  Stopped                 pwsh
andreas@ak-ubuntu:~/programming/rust/ion$ fg
pwsh
PS /home/andreas/programming/rust/ion> exit
andreas@ak-ubuntu:~/programming/rust/ion$

Screenshot for the second variant (since gnome-terminal closes so quickly; also this is edited to restore contrast):

Apport tells me pwsh SIGABRT-ed itself after displaying that exception stack trace.

System information

• Operating system: Ubuntu 18.10 x86_64
• Ion: ion 1.0.0-alpha, rev 56ea83ef
• Rust:
  • toolchain: stable-x86_64-unknown-linux-gnu
  • rustc: 1.32.0 (9fda7c223 2019-01-16)