Sorry, I'm unable to verify this for xenial. I submitted it as an SRU back to 4.4 because it had already landed in the stable queue for 4.4, and is a trivial change[*]. I think we'd need a system that either uses mvsas or aix94xx to actually exercise this libsas code on 4.4.
I do have a system that uses the hisi_sas driver, which also uses libsas. That driver did not exist in 4.4. I gave backporting that driver a go, but it was coded w/ the pci_irq_vector API that came later. [*] https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable- queue.git/tree/queue-4.4/scsi-libsas-fix-rphy-phy_identifier-for-phys- with-end-devices-attached.patch -- 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/1817784 Title: libsas disks can have non-unique by-path names Status in linux package in Ubuntu: Fix Committed Status in linux source package in Xenial: Fix Committed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: [Impact] Multiple disks in a system can end up having the same BY_PATH name, making the corresponding symlinks in /dev/disk/by-path non-unique. This can result in a user performing an operation on the wrong disk, possibly resulting in data loss. [Test Case] $ ls -l /dev/disk/by-path/ total 0 lrwxrwxrwx 1 root root 9 Feb 13 12:26 platform-HISI0162:01-sas-exp0x500e004aaaaaaa1f-phy0-lun-0 -> ../../sdb lrwxrwxrwx 1 root root 10 Feb 13 12:26 platform-HISI0162:01-sas-exp0x500e004aaaaaaa1f-phy0-lun-0-part1 -> ../../sdb1 lrwxrwxrwx 1 root root 10 Feb 13 12:26 platform-HISI0162:01-sas-exp0x500e004aaaaaaa1f-phy0-lun-0-part2 -> ../../sdb2 lrwxrwxrwx 1 root root 10 Feb 13 12:26 platform-HISI0162:01-sas-exp0x500e004aaaaaaa1f-phy0-lun-0-part3 -> ../../sdc3 Notice that there is no symlink for /dev/sdc. [Fix] ffeafdd2bf0b2 scsi: libsas: Fix rphy phy_identifier for PHYs with end devices attached [Regression Risk] This may change the by-path symlinks for disks on the system. While the new name would be the correct one - users maybe relying on the incorrect version. This could result in an unbootable system, requiring manual intervention to repair. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1817784/+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
