Reproducible with scsi_debug:
sudo modprobe scsi_debug removable=1 ptype=5
Gives:
P: /devices/pseudo_0/adapter0/host10/target10:0:0/10:0:0:0/block/sr0
N: sr0
E: DEVLINKS=/dev/cdrom /dev/disk/by-id/scsi-353333330000055f0
/dev/disk/by-id/wwn-0x53333330000055f0 /dev/disk/by-path/scsi-0:0:0:0
E: DEVNAME=/dev/sr0
E: DEVPATH=/devices/pseudo_0/adapter0/host10/target10:0:0/10:0:0:0/block/sr0
** Changed in: systemd (Ubuntu)
Status: New => Triaged
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1321816
Title:
/dev/disk/by-path link for scsi disks always has host "0", causing
conflicts
Status in “systemd” package in Ubuntu:
Triaged
Bug description:
The /dev/disk/by-path links to scsi disks are supposed to be of the
form "scsi-$host:$bus:$device$lun". The host portion is always zero,
leading to duplicates from different hosts. It appears these numbers
are pulled from ID_PATH, and I can't figure out where this variable
comes from.
I noticed this while playing around with the lio fake scsi target
adapter. Here is the full udev info on a disk created on such an
adapter. As you can see, it has been assigned scsi host id 13, so
that is what it should be using for the $host digit, rather than zero.
P:
/devices/tcm_loop_0/tcm_loop_adapter_5/host13/target13:0:1/13:0:1:0/block/sdg
N: sdg
S: disk/by-path/scsi-0:0:1:0
E: DEVLINKS=/dev/disk/by-path/scsi-0:0:1:0
E: DEVNAME=/dev/sdg
E:
DEVPATH=/devices/tcm_loop_0/tcm_loop_adapter_5/host13/target13:0:1/13:0:1:0/block/sdg
E: DEVTYPE=disk
E: ID_BUS=scsi
E: ID_MODEL=FILEIO
E: ID_MODEL_ENC=FILEIO\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
E: ID_PART_TABLE_TYPE=dos
E: ID_PATH=scsi-0:0:1:0
E: ID_PATH_TAG=scsi-0_0_1_0
E: ID_REVISION=4.0
E: ID_SCSI=1
E: ID_TYPE=disk
E: ID_VENDOR=LIO-ORG
E: ID_VENDOR_ENC=LIO-ORG\x20
E: MAJOR=8
E: MINOR=96
E: SUBSYSTEM=block
E: USEC_INITIALIZED=400656927711
E: nomdmonddf=1
E: nomdmonisw=1
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1321816/+subscriptions
--
Mailing list: https://launchpad.net/~touch-packages
Post to : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
