Request to backport cxlflash patches to 16.04 HWE Kernel

Bug #1730515 reported by bugproxy on 2017-11-06
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
The Ubuntu-power-systems project
Medium
Canonical Kernel Team
linux (Ubuntu)
Status tracked in Bionic
Zesty
Medium
Joseph Salisbury
Artful
Medium
Joseph Salisbury
Bionic
Medium
Joseph Salisbury

Bug Description

== SRU Justification ==
IBM is requesting these three cxlflash patches in the Ubuntu 16.04 HWE and newer
kernels. All three patches have now landed in mainline v4.15-rc1.

These commits fix bugs in the existing code - missing VPN could disable a
card and the write same sector size.

== Fixes ==
285e6670d022 ("scsi: cxlflash: Use derived maximum write same length")
0d4191305e69 ("scsi: cxlflash: Allow cards without WWPN VPD to configure")
d84c198f43c5 ("scsi: cxlflash: Derive pid through accessors")

== Regression Potential ==
Medium. These patches are not limited to one arch, but they are limited to cxlflash.

== Test Case ==
A test kernel was built with these patches and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.

bugproxy (bugproxy) on 2017-11-06
tags: added: architecture-ppc64le bugnameltc-161021 severity-medium targetmilestone-inin16044
Changed in ubuntu:
assignee: nobody → Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
affects: ubuntu → linux (Ubuntu)
Changed in ubuntu-power-systems:
importance: Undecided → Medium
assignee: nobody → Canonical Kernel Team (canonical-kernel-team)
Changed in linux (Ubuntu Zesty):
importance: Undecided → Medium
Changed in linux (Ubuntu Artful):
importance: Undecided → Medium
Changed in linux (Ubuntu Bionic):
importance: Undecided → Medium
status: New → Triaged
Changed in linux (Ubuntu Artful):
status: New → Triaged
Changed in linux (Ubuntu Zesty):
status: New → Triaged
Changed in linux (Ubuntu Zesty):
status: Triaged → In Progress
Changed in linux (Ubuntu Artful):
status: Triaged → In Progress
Changed in linux (Ubuntu Bionic):
status: Triaged → In Progress
Changed in linux (Ubuntu Zesty):
assignee: nobody → Joseph Salisbury (jsalisbury)
Changed in linux (Ubuntu Artful):
assignee: nobody → Joseph Salisbury (jsalisbury)
Changed in linux (Ubuntu Bionic):
assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) → Joseph Salisbury (jsalisbury)
Changed in ubuntu-power-systems:
status: New → In Progress
Joseph Salisbury (jsalisbury) wrote :

I built Zesty, Artful and Bionic test kernels with the requested three patches. The test kernels can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1730515/

Can you test these kernels and see if they resolve this bug?

Are these three commits required to fix a specific bug? That info would be needed for a SRU request.

------- Comment From <email address hidden> 2017-11-08 18:12 EDT-------
I tested the given zesty kernel and it looks good.

These commits fix bugs in the existing code - missing VPN could disable a card and the write same sector size.

tags: added: triage-g
tags: added: triage-a
removed: triage-g
tags: added: kernel-da-key triage-g
removed: triage-a
Joseph Salisbury (jsalisbury) wrote :
Changed in linux (Ubuntu Xenial):
status: New → In Progress
importance: Undecided → Medium
assignee: nobody → Joseph Salisbury (jsalisbury)
no longer affects: linux (Ubuntu Xenial)
summary: - Request to backport cxlflash patches to 16.04 SRU
+ Request to backport cxlflash patches to 16.04 HWE Kernel
description: updated
Seth Forshee (sforshee) on 2017-12-08
Changed in linux (Ubuntu Bionic):
status: In Progress → Fix Committed
Manoj Iyer (manjo) wrote :

jsalisbury, would you need to resubmit these patches for Artful since there was no update on these SRUs for some time now?

Manoj Iyer (manjo) on 2018-01-22
Changed in linux (Ubuntu Zesty):
status: In Progress → Won't Fix
Changed in linux (Ubuntu Artful):
status: In Progress → Fix Committed
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