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  2. MIDRANGE-L
  3. January 2018

RE: Meltdown and Spectre - Additional PTFs released

Yes, IBM may be putting out new PTFs regarding this CVE. They promised to have the initial batch out by 2/9/18 originally but I guess that's pushed back a couple of days.

I would expect more PTFs in the future if performance is affected anywhere near what you're reporting. I was hoping you would report the CPU was very busy but what you are seeing is not encouraging. To be honest a change in batch times like you experienced might not raise my dander too much, until the big job runs and extra hour.


--
Jim Oberholtzer
Agile Technology Architects


-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Tsutomu Fukuda
Sent: Tuesday, January 30, 2018 7:47 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: Re: Meltdown and Spectre - Additional PTFs released

Thank you Jim , Rob

How busy was the CPU and memory prior to the installation of the PTF?

CPU was about 40%.
We could not took the usage of memory before PTF.

The processing time has become longer about 3 to 4%.( MF64568 is not
installed yet)

--Batch processing time--
Before PTF/Firmware ----> 2hours 37minutes
After PTF/Firmware ----> 2hours 43minutes (increased 6 minutes)

I found the site and there are the description as follows.

https://www.ibm.com/blogs/psirt/potential-impact-processors-power-family/

IBM i operating system patches are now available via FixCentral and
will
continue to be rolled out through February 12.

Does this measns that new PTF might be released until February 12?
(MF64551->MF64568->MF???)

Best Regards.

Tsutomu.



On Tue, Jan 30, 2018 at 10:18 PM, Jim Oberholtzer < midrangel@xxxxxxxxxxxxxxxxx> wrote:

Tsutomu:

How busy was the CPU and memory prior to the installation of the PTF?

If the system was quite busy before, that tells us one thing. If the
system was not real busy (meaning over 80% CPU over a 20 minute
observation) then that says something entirely different.


--
Jim Oberholtzer
Agile Technology Architects


-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Tsutomu Fukuda
Sent: Monday, January 29, 2018 11:45 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: Re: Meltdown and Spectre - Additional PTFs released

Hi.

We have installed the PTF MF64551.

The processing time has become longer about 3 to 4%.( MF64568 is not
installed yet)

Has anyone installed it.?

Tsutomu.

Japan.


On Tue, Jan 30, 2018 at 6:27 AM, Bryan Dietz <bdietz400@xxxxxxxxx> wrote:

Link to the related Power Firmware Security Bulletin and fix information:
http://www-01.ibm.com/support/docview.wss?uid=isg3T1026811

The IBM i PTF numbers are:

PTFs released on January 26, 2018

Release 7.1 – MF64571
Release 7.2 – MF64565
Release 7.3 – MF64568

PTFs released on January 10, 2018

Release 7.1 – MF64553
Release 7.2 – MF64552
Release 7.3 – MF64551


There is also a firmware piece, check fix central

Bryan
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