[Beowulf] RHEL7 kernel update for L1TF vulnerability breaks RDMA

Kilian Cavalotti kilian.cavalotti.work at gmail.com
Fri Aug 17 07:54:03 PDT 2018

Hi Chris,

On Thu, Aug 16, 2018 at 10:05 PM, Chris Samuel <chris at csamuel.org> wrote:
> There's 6 CVE's addressed in that update from the look of it, so it might not
> be the L1TF fix itself that has triggered it.
> https://access.redhat.com/errata/RHSA-2018:2384

That's true: RH mentioned an "embargo'd security fix" but didn't refer
to L1TF explicitly (which I think is not under embargo anymore).

As the reporter of the issue on the Whamcloud JIRA, I also have to
apologize for initially pointing fingers at Lustre, it didn't cross my
mind that this kind of whole RDMA stack breakage would have slipped
past Red Hat's QA.


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