Hi Everyone,
We are starting a new project using static VXI addressing and got into
a part of dbStaticLib that others may not be using. I sent a fix to
Marty. The changes will be included in the next release.
The symptoms of the bugs are that addresses of either of these forms
#V<logical address> S<signal>
(.i.e. no parameter field)
or
#V<logical address> S<signal> @<string containing 'C'>
(a parameter field containing a capitol C)
causes the dbDumpRecord routine in dbStaticLib to get a segmentation error
which in turn causes dbst to get a segmentation error.
For anyone who wants to make the changes in their current copy of dbStaticLib.c
Marty sent me the diffs and they are included below.
Rozelle
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>From [email protected] Mon Aug 3 07:48 MDT 1998
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Date: Mon, 03 Aug 1998 08:48:20 -0500
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To: Rozelle Wright <[email protected]>
Subject: Re: A fix for another VXI addressing bug in dbStaticLib
References: <[email protected]>
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Rozelle Wright wrote:
> I think we must be the only people using static VXI addressing with Epics3.13
> or you would have heard about this before. I think it is important enough
> to include in the final release and/or report the correction to tech talk.
I agree. Can you send a message to tech-talk?
I found one more suspicious piece of code. Here are complete diffs since
beta11
Index: dbStaticLib.c
===================================================================
RCS file:
/net/phoebus/epicsmgr/cvsroot/epics/base/src/dbStatic/dbStaticLib.c,v
retrieving revision 1.41
diff -r1.41 dbStaticLib.c
318c318
< *pparm = NULL;
---
> *pparm = pNullString;
2244c2244,2245
< if(!(end = strchr(pstr,'C'))) {
---
> plink->value.vxiio.parm = pNullString;
> if(!((end = strchr(pstr,'C'))&&(end < strchr(pstr,'@')) )) {
2657a2659
> pform->nlines = nlines;
The first diff is the new suspicious piece of code. The last addiion was
a bug that showed up in JDCT.
I have also attached my latest version of dbStaticLib.c.
Thanks for finding problem and solution.
Marty
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