[Openstack-operators] Ubuntu Kernel with Meltdown mitigation SSL issues
logan at protiumit.com
Thu Jan 18 20:18:46 UTC 2018
We upgraded our control plane to 4.4.0-109 + intel-microcode
3.20180108.0~ubuntu16.04.2 several days ago, and are about 1/2 of the
way thru upgrading our compute hosts with these changes. We use Ocata
for all services, and no issue like this has been observed yet on our
env. Control hosts are E5-2600 V2's and the computes are a mix of
E5-2600 v2/v3/v4's along with some Xeon D1541's.
On Thu, Jan 18, 2018 at 2:42 AM, Adam Heczko <aheczko at mirantis.com> wrote:
> Hello Sam, thank you for sharing this information.
> Could you please provide more information related to your specific setup.
> How is Keystone API endpoint TLS terminated in your setup?
> AFAIK in our OpenStack labs we haven't observed anything like this although
> we terminate TLS on Nginx or HAProxy.
> On Thu, Jan 18, 2018 at 4:36 AM, Sam Morrison <sorrison at gmail.com> wrote:
>> Hi All,
>> We updated our control infrastructure to the latest Ubuntu Xenial Kernel
>> (4.4.0-109) which includes the meltdown fixes.
>> We have found this kernel to have issues with SSL connections with python
>> and have since downgraded. We get errors like:
>> SSLError: SSL exception connecting to
>> https://keystone.example.com:35357/v3/auth/tokens: ("bad handshake:
>> Error([('', 'osrandom_rand_bytes', 'getrandom() initialization
>> Full trace: http://paste.openstack.org/show/646803/
>> This was affecting glance mainly but all API services were having issues.
>> Our controllers are running inside KVM VMs and the guests see the CPU as
>> "Intel Xeon E3-12xx v2 (Ivy Bridge)”
>> This isn’t an openstack issue specifically but hopefully it helps others
>> who may be seeing similar issues.
>> OpenStack-operators mailing list
>> OpenStack-operators at lists.openstack.org
> Adam Heczko
> Security Engineer @ Mirantis Inc.
> OpenStack-operators mailing list
> OpenStack-operators at lists.openstack.org
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