[Info-vax] OpenVMS training - now in VSI's hands (?)

[Paul Sture]

On 2015-03-14, Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP>
wrote:
> On 2015-03-14, Jan-Erik Soderholm <jan-erik.soderholm at telia.com> wrote:
>>
>> About the topic, I'm too old for training... :-)
>>
>
> You are _never_ too old to learn something new.
>
> Your experience also means you can see both the good and the bad in
> those new ideas.

Yes, younger folks can benefit from your own experiences even if it is
newer stuff.

As a concrete example, there seems to be a constant supply of folks
entering IT who know nothing about record locking or virtual memory
:-(

Here's an example from the blog post linked to by Ars Technica in their
report on the Rowhammer problem.  Rob Graham, CEO of Errata Security,
wrote this blog post:

<http://blog.erratasec.com/2015/03/some-notes-on-dram-rowhammer.html#.VP4dF-F7RqE>

"In today's computers, software doesn't use physical addresses to
memory. Instead, they use virtual addresses.

...

In old computers, this was also used to trick applications into thinking
they had more virtual memory than physical memory in the system.
Infrequently used blocks of memory would be removed from the physical
memory and saved to disk, and would automatically be read back into the
system as needed."

Dunno what planet he's living on where only old computers do paging. :-(

-- 
Don't ever use the last two versions of GCC in serious stuff :)
              -- fortune cookie seen on GCC Bugzilla – Bug List