Hi Saeed, On Thu, Mar 16, 2023 at 09:31:38PM +0000, Saeed Mirzamohammadi wrote: > eui64 values are not unique. Here is an example: > namespace1 > nguid : 36554630529000710025384500000001 > eui64 : 002538191100104a > namespace2 > nguid : 36554630529000710025384500000002 > eui64 : 002538191100104a > namespace3 > nguid : 36554630529000710025384500000003 > eui64 : 002538191100104a > namespace4 > nguid : 36554630529000710025384500000004 > eui64 : 002538191100104a > > I haven’t yet contacted Samsung. Do you recommend any one to reach out to? I am able to reproduce this error with a PM173X. nvme id-ns: root@missingno:~# nvme id-ns -n 1 /dev/nvme1 | grep eui64 eui64 : 00253891010005b3 root@missingno:~# nvme id-ns -n 2 /dev/nvme1 | grep eui64 eui64 : 00253891010005b3 root@missingno:~# nvme id-ns -n 3 /dev/nvme1 | grep eui64 eui64 : 00253891010005b3 dmesg: [174690.305507] nvme nvme1: identifiers changed for nsid 1 [174878.481002] nvme nvme1: rescanning namespaces. [174878.535981] nvme nvme1: duplicate IDs in subsystem for nsid 2 [174878.599982] nvme nvme1: duplicate IDs in subsystem for nsid 2 [174883.673001] nvme nvme1: rescanning namespaces. [174883.740045] nvme nvme1: duplicate IDs in subsystem for nsid 2 [174883.784025] nvme nvme1: duplicate IDs in subsystem for nsid 3 [174883.852034] nvme nvme1: duplicate IDs in subsystem for nsid 2 [174883.892040] nvme nvme1: duplicate IDs in subsystem for nsid 3 I will report this to our firmware team. Meanwhile, Could you paste your output id-ctrl output here? I am interested in the fw version you are using. -- Pankaj