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nvme: Warn if there's system interrupt issues.
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Authored by imp on Jul 18 2024, 9:55 PM.
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Details

Summary

Issue a warning if we have system interrupt issues. If you get this
warning, then we submitted a request, it timed out without an interrupt
being posted, but when we polled the card's completion, we found
completion events. This indicates that we're missing interrupts, and to
date all the times I've helped people track issues like this down it has
been a system issue, not an NVMe driver isseue.

Sponsored by: Netflix

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Repository
rG FreeBSD src repository
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Build Status
Buildable 58712
Build 55600: arc lint + arc unit

Event Timeline

imp requested review of this revision.Jul 18 2024, 9:55 PM
This revision is now accepted and ready to land.Jul 18 2024, 9:56 PM
This revision now requires review to proceed.Jul 18 2024, 10:01 PM

Misc updates with testing

This revision was not accepted when it landed; it landed in state Needs Review.Jul 23 2024, 11:04 PM
This revision was automatically updated to reflect the committed changes.