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Date:   Mon, 10 Jul 2023 17:18:35 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Chuck Lever III <chuck.lever@oracle.com>
Cc:     Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
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Subject: Re: NFS workload leaves nfsd threads in D state
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On Mon, Jul 10, 2023 at 03:10:41PM +0000, Chuck Lever III wrote:
> > I have a way to test it on an xfs export backed by a pair of AIC
> > NVMe devices. Stand by.
> 
> The issue is not reproducible with PCIe NVMe devices.

Thanks.  ATA is special because it can't queued flush commands unlike
all other problems.  I'll see if I can get an ATA test setup and will
look into it ASAP.