openvmm: --com3 term=wt drops early output sometimes
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bug
- Dominant language
- Rust
- Stars
- 1.9k
- Forks
- 238
- Avg merge
- 1d 15h
- Merged PRs (30d)
- 100
Description
Early output on the serial port gets dropped in the terminal if you print very early on in the VM's lifetime, like say in openhcl_boot.
Not sure what we can do to fix it, maybe we can buffer it until the terminal is up or wait to start the vm?
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First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the dropped early output with openvmm's --com3 term=wt option and an early print from openhcl_boot. Trace when the VM starts relative to terminal setup, then determine whether the issue can be resolved by buffering output or delaying VM startup. Done means early serial output is consistently visible.
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Assessment
- Tech stack
- rust
- Domain
- operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100