I have this same problem for some time and on the latest update too. all of the discs affected are used in a zfs zpool.
uname -a Linux PEI-Server 4.15.0-45-generic #48~16.04.1-Ubuntu SMP Tue Jan 29 18:03:48 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux cat /sys/module/zfs/version 0.7.5-1ubuntu16.4 I have a total of 6 discs split equally across 2 esata port multipliers. All are part a a single raidz2 pool. Zillions of these errors: Mar 3 22:04:48 PEI-Server systemd[1]: dev-disk-by\x2dpath-pci\x2d0000:07:00.0\x2data\x2d1\x2dpart1.device: Dev dev-disk-by\x2dpath-pci\x2d0000:07:00.0\x2data\x2d1\x2dpart1.device appeared twice with different sysfs paths /sys/devices/pci0000:00/0000:00:1c.2/0000:07:00.0/ata3/host2/target2:0:0/2:0:0:0/block/sdd/sdd1 and /sys/devices/pci0000:00/0000:00:1c.2/0000:07:00.0/ata3/host2/target2:1:0/2:1:0:0/block/sde/sde1 I have lots of detailed data if anyone wants to see it. It would REALLY be nice if a fix trickled down soon... thanks rich -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1611945 Title: /dev/disk/by-path not properly populated for (e)SATA port multiplier disks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1611945/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs