Experimental Physics and
Industrial Control System

Till,

This is of course highly sensitive to the number of bytes in CAS's put
notify structure and also the db put notify structure. Looking closely
at this, it appears that the problem is present in R3.14 but not in
R3.13. No question that in the future we would like to avoid this
pitfall altogether.

To make the code more robust I placed the CA put notify structure on a
free list. This structure now includes a union of all DBF_XXX types
including DBF_STRING. If the data being written fits it is stored in the
union otherwise arrays are allocated once for each PV with calloc until
the client disconnects.

This will show up in the next release of R3.14.

Jeff

> -----Original Message-----
> From: Till Straumann [mailto:[email protected]]
> Sent: Friday, September 20, 2002 11:24 AM
> To: Tech Talk (EPICS)
> Subject: Another SPARC alignment bug in 3.14_beta1
>
> Hi there.
>
> You probably fixed this one already - RSRV on SPARC
> dies with SIGBUS on putNotify due to a misaligned buffer.
>
> Just to make sure, there's a patch attached (3.14_beta1)...
>
> -- Till

References:

Another SPARC alignment bug in 3.14_beta1 Till Straumann

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