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so, have you tried the followinghttps://lore.kernel.org/linux-nvme/20250820150220.1923826-1- >> john.g.garry@oracle.com/ >> >> We were considering changing the NVMe driver to not use AWUPF at all... > Yes, I just tested your patch with the latest upstream kernel on my drive, > which reports a non-zero AWUPF but a zero NAWUPF. Do you think that you could check with the OEM for updated firmware (that reports NAWUPF)? You IBM guys (I guess that you work together) have been a great help for the atomic writes work, and I think that it would be unfortunate to lose the atomic write capability for the drives which you use. Or lose automatic capability (like in this patch). Thanks, John