microsoft / microsoft/openvmm

BlobDisk: intermittent access to disks cause IO errors

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storage testing
Dominant language
Rust
Stars
1.9k
Forks
238
Avg merge
1d 15h
Merged PRs (30d)
100

Description

@jstarks mentioned this in an offline conversation. He noticed that if you:

  1. Establish a connection,
  2. Drive IO
  3. Wait several minutes (without IO)
  4. Issue new IO

The IO fails.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the BlobDisk implementation and reproduce the reported sequence: establish a connection, perform I/O, wait several minutes without I/O, then issue new I/O. Trace the idle-to-active path to determine why the later operation fails; done means I/O succeeds reliably after the idle period without introducing new errors.

Written by the indexing model from the issue text.

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

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