** Tags removed: triage-g ** Tags added: triage-a -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1746416
Title: Boston-LC:bos009:Ubuntu18.04: No /dev/disk/by-path link created for Samsung PM1725a NVMe 1.6TB and .8 TB disk drives Status in The Ubuntu-power-systems project: Triaged Status in linux package in Ubuntu: New Bug description: == Comment: #1 - Application Cdeadmin BMC/PNOR: ========= Firmware Revision : 00.37 IP address : 009.003.020.216 Firmware Build Time : 20171201 BMC MAC address : 0c:c4:7a:f4:4d:60 PNOR Build Time : 20180117 CPLD Version : B2.91.00 Ubuntu 18.04: ========= root@bos1u1p1:~# uname -a Linux bos1u1p1 4.15.0-041500rc9-generic #201801212130 SMP Mon Jan 22 03:36:42 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux root@bos1u1p1:~# ls -l /dev/disk/by-path total 0 lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:0:0 -> ../../sda lrwxrwxrwx 1 root root 10 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:0:0-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:0:0-part2 -> ../../sda2 lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:1:0 -> ../../sdb lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:2:0 -> ../../sdc lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.0-fc-0x500507680b218452-lun-0 -> ../../sdd lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.0-fc-0x500507680b218452-lun-1 -> ../../sde lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.0-fc-0x500507680b218452-lun-2 -> ../../sdf lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.0-fc-0x500507680b218452-lun-3 -> ../../sdg lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.0-fc-0x500507680b218453-lun-0 -> ../../sdh lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.0-fc-0x500507680b218453-lun-1 -> ../../sdi lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.0-fc-0x500507680b218453-lun-2 -> ../../sdj lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.0-fc-0x500507680b218453-lun-3 -> ../../sdk lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.1-fc-0x500507680b218452-lun-0 -> ../../sdl lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.1-fc-0x500507680b218452-lun-1 -> ../../sdm lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.1-fc-0x500507680b218452-lun-2 -> ../../sdn lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.1-fc-0x500507680b218452-lun-3 -> ../../sdo lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.1-fc-0x500507680b218453-lun-0 -> ../../sdp lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.1-fc-0x500507680b218453-lun-1 -> ../../sdq lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.1-fc-0x500507680b218453-lun-2 -> ../../sdr lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:01:00.1-fc-0x500507680b218453-lun-3 -> ../../sds root@bos1u1p1:~# Problem Description: ============= - I setup my Boston LC system to run with Ubuntu 18.04 - I tried to test out Samsung PM1725a NVMe 1.6TB and .8 TB disk drives on Boston LC system. - The disk drive plugged good into the system. However, after boot the system did not see the disk. - I tried with both Samsung PM1725a NVMe 1.6TB and with .8TB disk drives and none of them show up. - This disk type plan to supporte in Boston LC system so if the system does not recognize it then it is an issue. - I checked with Joe W. my team lead and he told me to open github issue for further investigation. root@bos1u1p1:~# ls -l /dev/disk/by-path total 0 lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:0:0 -> ../../sda lrwxrwxrwx 1 root root 10 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:0:0-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:0:0-part2 -> ../../sda2 lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:1:0 -> ../../sdb lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:01:00.0-scsi-0:2:2:0 -> ../../sdc - If the disk is recognized then it will be pci-0003:01:00.0-scsi-0:2:3:0 -> ../../sdd but it's not. == Comment: #2 - Application Cdeadmin ------- Comment From dacng 2018-01-25 11:13:00 EDT ------- You need to install NMVE HBA in your machine == Comment: #3 - Application Cdeadmin ------- Comment From nguyenp1 2018-01-26 15:35:40 EDT ------- - I have NVME HBA adapter installed in the system and 2 Samsung PM1725a NVMe 1.6TB and .8 TB disk drives in the system. The adapter and nvme drives show correctly. - However, the "ls -l /dev/disk/by-path" command did not show any nvme drives. So it's new issue with Ubuntu 18.04. Without the PCI path the nvme disks can not be assigned to KVM guest. root@bos1u1p1:/dev/disk/by-path# ls -l /dev/disk/by-path total 0 lrwxrwxrwx 1 root root 9 Jan 26 15:19 pci-0003:01:00.0-scsi-0:2:0:0 -> ../../sda lrwxrwxrwx 1 root root 10 Jan 26 15:19 pci-0003:01:00.0-scsi-0:2:0:0-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 Jan 26 15:19 pci-0003:01:00.0-scsi-0:2:0:0-part2 -> ../../sda2 Nvme HBA adapter: 0031:08:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller 172Xa (rev 01) 0031:09:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller 172Xa (rev 2 NVMe disks in the system. root@bos1u1p1:/dev/disk/by-path# nvme list Node SN Model Namespace Usage Format FW Rev ---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- -------- /dev/nvme0n1 S3HCNX0J700289 SAMSUNG MZWLL800HEHP-00003 1 800.17 GB / 800.17 GB 512 B + 0 B GPNA4B3Q /dev/nvme1n1 S3HDNX0J800067 SAMSUNG MZWLL1T6HEHP-00003 1 1.60 TB / 1.60 TB 512 B + 0 B GPNA5B3Q == Comment: #4 - Application Cdeadmin <cdead...@us.ibm.com> - 2018-01-26 15:50:35 == ------- Comment From nguyenp1 2018-01-26 15:41:17 EDT ------- I checked with Dac Nguyen and he told me his system also has this problem. The "ls -l /dev/disk/by-path" does not display any NVME drives. Without the PCI path the nvme disks can not be assigned to KVM guest. So this problem need to be further investigate. - I'm gathering sosreport and attach it to the bugzilla. == Comment: #5 - Paul Nguyen Attached sosreport in bugzilla for Linux team to look at the problem. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1746416/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
