Bugs found with Rewind VM

Bugs in open source projects that Rewind VM found, each linked to its upstream report.

Go

• net/http hides why a new HTTP/2 connection failed

Node.js

• A watch mode test restarts when other tests create files beside it

Git

• Two git notes add at once silently drop one of the notes
• Two credential-cache daemons started at once lose a stored credential

Nix

• A new store's database is busy when several processes open it at once
• The gc-closure test can fail with SIGPIPE

Flox

• Activations that start and exit together corrupt each other's state
• Two concurrent flox activate -s restart each other's services
• A finished activation's on-deactivate hook runs alongside the next on-activate
• The on-deactivate hook runs after on-activate failed
• flox install and flox edit fail in containers

nixd

• Formatting hangs on large files, can kill nixd with SIGPIPE, and leaks fds

Jujutsu

• Three test_converge tests fail when operations end in the same millisecond

process-compose

• Shutdown hangs when a process restarts as the project ends
• A SIGTERM during startup leaves processes running after process-compose exits

Pueue

• A task added right after pueue reset is deleted by the reset

watchexec

• One run's --timeout kills the restarted run
• A signal forwarded during a restart kills the new run
• watchexec fails to start when HOME does not exist

concurrently

• A signal during --teardown leaves the teardown command running
• Input to a command that closed its stdin crashes concurrently

Supervisor

• A daemonizing supervisord returns before its pidfile exists
• A program that fails at once is restarted forever when its child holds its output