[PATCH 2/3] nvme-multipath: cannot disconnect controller on stuck partition scan

Keith Busch kbusch at kernel.org
Wed Oct 9 10:10:00 PDT 2024


On Wed, Oct 09, 2024 at 08:23:45AM +0200, Hannes Reinecke wrote:
> With my testcase _all_ paths return NS_NOT_READY during partition scan, so
> I/O is constantly bounced between paths, and partition scan never returns.
> Doesn't matter where you call it, it's stuck.

I'm trying to recreate this so just want to clarify the return status.
NS_NOT_READY isn't a path error, so doesn't use failover. It eventually
exhausts its retries, so I don't see a problem with that status.

If I synthesize a pathing error though, then yeah, I can recreate a
problem.



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