Re: CA gateway failure

["Ernest L. Williams Jr." <ernesto@ornl.gov>]

On Tue, 2005-03-22 at 13:20 -0600, Andrew Johnson wrote:
> Jeff Hill wrote:
> > 
> > This message is relevant to a CA gateway failure reported by Rolf
> > Keitel (Mantis Entry 113). The symptom observed was a corrupt
> > value written through the CA gateway when it is under a heavy
> > client induced write through load. The bug has been isolated to
> > the portable CA server. An incoming payload for a CA put was byte
> > swapped twice when an IO operation was restarted due to heavy
> > client loads.
> > 
> > I have committed a fix to CVS. This fix should appear first in
> > EPICS R3.14.7. 
> 
> Actually in R3.14.8, since R3.14.7 was released last December.  I'm not 
> aware of any current plans to release R3.14.8 anytime soon.
> 
> > It will be important to *not* enable writes through your gateway
> > until you receive a patch for this bug.
> 
> Jeff - if this fix can be isolated into a patch file, I can make that 
> accessible through the Known Problems page for R3.14.7.  I have just 
> added the above report to that page, which already has links to some 
> other patch files.

A patch file would be awesome.

Also, a patch file to get rid of the following warning. :)
=======================================================================
warning: dereferencing type-punned pointer will break strict-aliasing
rules
=======================================================================


Thanks,
Ernest


> 
> - Andrew