[Bug 264141] nvme(4): Heavy load to SSD wedges 13.1 system: Controller in fatal status, resetting ... Resetting controller due to a timeout and possible hot unplug.

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From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 22 May 2022 05:03:58 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264141

--- Comment #5 from Warner Losh <imp@FreeBSD.org> ---
Does this happen with nda?  nda will retry these things w/o failing them up the
tree and so zfs won't have problems. Perhaps nvme should just retry these I/Os
a small number of times instead?

As for the nvme controller, I'm not sure much can be done: We're detecting that
we've stopped getting interrupts from it, we check the status and find that the
nvme controller has failed and we have to reset the controller to keep going.

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