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Date:      Thu, 26 Mar 2026 14:56:13 +0000
From:      Sean Eric Fagan <Sean.fagan@klarasystems.com>
To:        "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>
Cc:        "markj@freebsd.org" <markj@freebsd.org>
Subject:   bhyve and controlled errors
Message-ID:  <F7A52994-0294-4C99-86F4-7204AE2D6CB9@klarasystems.com>

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I’d asked Mark about this and he suggested I bring it up on the list:

Has anyone thought about implementing controls / tunables to bhyve to introduce errors? I am, most specifically right now, thinking about causing disk I/O errors, or having requests dropped by the "hardware," to test error handling.

Last time I looked at the bhyve source code, it scared me, so if someone else has looked at this, I’m love to know.

Thanks,

Sean.

---
Sean Eric Fagan
Systems Engineer II | Klara Inc.
E-mail: Sean.fagan@klarasystems.com
Web: klarasystems.com<https://klarasystems.com>;

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