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Copilot -p fails with I/O failure #5357

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Description

@chemwolf6922

Describe the bug

copilot -p "hello?"
● An administrator-managed setting replaced model "gpt-6-astra" with "gpt-6.1-sol" for this session. Contact your
administrator if this is unexpected.

Error executing prompt: Error: Request session.send failed with message: Shared writer storage I/O failed. (operation=open_lock, os_error=5)

Affected version

GitHub Copilot CLI 1.0.105.

Steps to reproduce the behavior

copilot -p "anything"

Expected behavior

It works.

Additional context

No response

Activity

  1. added theissue type on Nov 5, 2026
  2. added
    area:non-interactiveNon-interactive mode (-p), CI/CD, ACP protocol, and headless automation
    area:sessionsSession management, resume, history, session picker, and session state
    and removed on Nov 5, 2026
  3. chemwolf6922 commented on Nov 9, 2026

    @chemwolf6922
    Author

    Anyone?

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    area:non-interactiveNon-interactive mode (-p), CI/CD, ACP protocol, and headless automationarea:sessionsSession management, resume, history, session picker, and session state

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