URGENT - BZ1930469 and BZ1918456

[StephenJamesSmith]

@KeYoung Ken Young will be explaining the urgency of including these two as exceptions and why these exceptions should be granted.

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[kenyis]

JUSTIFICATION:
The defects which are documented here are fundamental platform problems which can impact customers severely. BZ#1893281 is a continual kernel panic which makes systems using the Real Time kernel unstable. Customers using a rt-kernel should not upgrade until this problem is corrected. BZ#1930469 will correct the SRIOV operator to enable customers to use 4.7 with DPDK applications on Intel NICs. If 4.7 is used out of the box, this will not work.

Given the impact of these defects at GA, it is important to document these bugs to provide a customer warning of these issues.

[StephenJamesSmith]

Updated text from @[email protected] and @[email protected].

[ahardin-rh]

plug-in does not

[StephenJamesSmith]

change made.

[ahardin-rh]

I don't understand what this first sentence is trying to say. You might want to break it up for clarity.

[StephenJamesSmith]

Yes, it is a little problematic, but I was told by Eric that this is understandable to the audience.

[StephenJamesSmith]

@[email protected] Can we change this to "...causes the openvswitch et/openvswitch/flow_table::flow_lookup accessing per-cpu data condition on preemptible (and migratable) sections..."? Or, Am I reading this wrong?

[StephenJamesSmith]

Making the above change as per Eric Rich.

[zhaozhanqi]

/lgtm

[openshift-ci-robot]

New changes are detected. LGTM label has been removed.

[StephenJamesSmith]

Reopened the PR.

[juphoff]

LGTM

[wking]

Are the https://https:// stutters intentional (here and below)?

[StephenJamesSmith]

Fixed broken links in PR 30169 #30169

…

On Fri, Mar 5, 2021 at 4:05 PM W. Trevor King ***@***.***> wrote: ***@***.**** commented on this pull request. ------------------------------ In release_notes/ocp-4-7-release-notes.adoc <#29835 (comment)> : > @@ -2036,6 +2036,17 @@ $ oc patch route/canary -n openshift-ingress-canary -p '{"spec":{"tls":{"termina + (link:https://bugzilla.redhat.com/show_bug.cgi?id=1932401[*BZ#1932401*]) +* Updates to openvswitch ("net: openvswitch: reorder masks array based on usage") code causes the openvswitch et/openvswitch/flow_table::flow_lookup accessing per-cpu data condition on preemptible (and migratable) sections, leading to a real time kernel panic. As a result, the kernel-rt is unstable and will impact low latency applications. ++ +It is recommended not to upgrade to {product-title} 4.7 until this is fixed. ++ +(link:https://https://bugzilla.redhat.com/show_bug.cgi?id=1918456[*BZ#1918456*]) Are the https://https:// stutters intentional (here and below)? — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#29835 (review)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABH67NGNQBSPXB2ET5JNETTTCFBSJANCNFSM4YGRMDLA> .

-- Stephen Smith Senior Technical Writer - Telco/NFV Customer Solutions Red Hat <https://www.redhat.com/> 100 E. Davie St. Raleigh, NC 27601 [email protected] M: 919-802-4259 IM: stesmith <https://red.ht/sig>