[Info-vax] DCL crashing bug update

[dgordonatvsi at gmail.com]

On Tuesday, July 25, 2017 at 4:22:11 PM UTC-4, Simon Clubley wrote:
> On 2017-07-25, David Froble  wrote:
> >
> > I think Simon wrote:
> >
> > "About those crashes. Here's one that occurred this weekend during a reboot:"
> >
> > So, most likely two separate things.
> 
> My thinking was that maybe DCL crashing did some undetected latent
> damage which didn't show up until the reboot.

Machine Check is a hardware error.  Or in your case, emulator.

> 
> However, overall I find that very unlikely for what is supervisor mode
> code; it's far more likely to be an emulation issue.

Yes.

I've looked into the recall buffer code.  I know what the issue is.  I've opened an internal bug report, assigned to me.

To this question:

> When adding new functionality to VMS, how much work is done to evaluate 
> the original design assumptions in light of any new functionality ? 

/INPUT and /OUTPUT were added in 1993 - 3 years before I originally joined VMS Engineering.    "New" is relative.