------- Comment From [email protected] 2017-05-25 18:06 EDT-------
(In reply to comment #4)
> I built a Yakkety test kernel with commit 9373eba6cfae.  The test kernel can
> be downloaded from:
>
> http://kernel.ubuntu.com/~jsalisbury/lp1693369/yakkety/
>
> Can you test this kernel and see if it resolves this bug?  Xenial needs some
> prereq commits, so I'm working on identifying them and and should have that
> test kernel shortly.

Thanks for the quick turnaround! Unfortunately, I only see amd64
packages there. Any chance I could get a ppc64el package?

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https://bugs.launchpad.net/bugs/1693369

Title:
  5U84 - ses driver isn't binding right - cannot blink lights on 1 of
  the 2 5u84

Status in The Ubuntu-power-systems project:
  New
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Xenial:
  In Progress
Status in linux source package in Yakkety:
  In Progress

Bug description:
  This is a request to add the following upstream commit to both Ubuntu
  16.04.1 and 16.04.2:

  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/scsi/ses.c?id=9373eba6cfae48911b977d14323032cd5d161aae

  Without this patch, the symlink in sysfs which binds a SAS device to
  an enclosure slot does not get created. This makes disk hotplug near
  impossible on large JBOD disk drawers.

  You should be able to do:

  ls /sys/block/sdb/device/ | grep enclosure

  and see something like:

  enclosure_device:1

  If you cd to this directory, you can then access the SES controls for
  that slot to flash the LED to assist in locating the disk to replace a
  failed disk.

  Currently with 16.04.1 and 16.04.2, these symlinks are not getting
  created.

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