[Info-vax] Error logging on VMS

[Ian Miller]

On Monday, August 23, 2021 at 7:18:44 PM UTC+1, Simon Clubley wrote:
> On 2021-08-23, Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> wrote: 
> > 
> > 3) It's too late for this now, but it would have been nice if the 
> > only way to increase an error counter on VMS was via an API that 
> > _always_ logged something in the error log so that you could see 
> > there had been an error logged, even if something later happened 
> > such as a system crash. 
> >
> I've just read this again and given my history I should point out 
> that I have _not_ been crashing systems this weekend. :-) 
> 
> That was just an example of how you can lose an error indicator 
> unless there's a permanent record of it.
> Simon. 
> 
> -- 
> Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP 
> Walking destinations on a map are further away than they appear.
device drivers can choose to send error reports to the error log as well as incrementing the error count for the device or not. Incrementing the error count is one instruction to increment a location in the device UCB so I guess finding all those and adding a call to $SNDERR [or the equivalent executive subroutine]  is possible but unlikely. This chance could be made to specific drivers by VSI if you could persuade them.