I found one of the reasons for the bug. There is a bit of memory that
is shared between the opcodes and that is causing the problem, but
I have not found a complete fix yet.

Victor
----- Original Message ----- 
From: "victor" 
To: "Developer discussions" 
Sent: Sunday, May 18, 2008 10:47 PM
Subject: Re: [Cs-dev] Responses from bug trawl


>I see this in the source code:
>
> if (specwp > 0)
>      /* RWD: THIS CAUSED MASSIVE MEMORY ERROR, BUT DOESN'T WORK ANYWAY */
>      PreWarpSpec(p->pp, buf, asize, pex);
>
> Sounds like the code never worked. I'll see if I can fix it.
>
> Victor
> ----- Original Message ----- 
> From: "Oeyvind Brandtsegg" 
> To: "Developer discussions" 
> Sent: Sunday, May 18, 2008 10:35 PM
> Subject: Re: [Cs-dev] Responses from bug trawl
>
>
>> Yes, it was for ispecw=1 only.
>> However, to complicate matters, I have intermittently been able to run
>> it without the bug appearing. If it runs without problems, it will run
>> ok for repeated testing. If it does not run (happens more often), then
>> trying it again will still not run it.
>> ...sorry to be troublesome.
>>
>> Oeyvind
>>
>> 2008/5/18, victor :
>>> I was able to run both instruments together (with ispecw=0). Is the
>>> second bug (the one where you can't run more than one instrument)
>>> with ispecw=1 only? (The only change I made was to use my own
>>> pvx, the same for both instruments).
>>>
>>> Victor
>>> ----- Original Message -----
>>> From: "Oeyvind Brandtsegg" 
>>> To: "Developer discussions" 
>>> Sent: Sunday, May 18, 2008 9:44 PM
>>> Subject: Re: [Cs-dev] Responses from bug trawl
>>>
>>>
>>> >I do agree that the recommendation should be to use the pvs opcodes
>>> >instead.
>>> >
>>> > I did supply a csd with the previous post (pvoc_test.csd),
>>> > should I resend it ?
>>> >
>>> > best
>>> > Oeyvind
>>> >
>>> >
>>> > 2008/5/18, victor :
>>> >> That needs to be looked after. Could you supply a CSD?
>>> >>
>>> >> I am wondering now whether we should mark the pvoc opcodes
>>> >> as deprecated. Their functionality is replicated with much better
>>> >> quality and flexibility by the pvs* opcodes.
>>> >>
>>> >> Victor
>>> >> ----- Original Message -----
>>> >> From: "Oeyvind Brandtsegg" 
>>> >> To: "Developer discussions" 
>>> >> Sent: Sunday, May 18, 2008 7:31 AM
>>> >> Subject: Re: [Cs-dev] Responses from bug trawl
>>> >>
>>> >>
>>> >> > And, sorry again, one more bug.
>>> >> >
>>> >> > The pvoc opcode seems to not work correclty if the ispecwp 
>>> >> > parameter
>>> >> > is set to 1.
>>> >> > For example
>>> >> > a1 pvoc ktimpnt, 1.5, Spfile, 1
>>> >> > will make sound, but also will print a
>>> >> > "Csound tidy up: Segmentation violation"
>>> >> > at the end of performance.
>>> >> >
>>> >> > That's a straightforward bug, but there's also one pvoc bug that
>>> >> > seem
>>> >> > very strange indeed:
>>> >> >
>>> >> > Using two instrument containing a pvoc opcode in the same orchestra
>>> >> > does not seem to work. None of the two instruments seem to make any
>>> >> > sound, even if no warnings are printed. This bug shows up
>>> >> > consistently, even if only one of the instruments is activated (see
>>> >> > attached example).
>>> >> > Intermittently, I have also been able to provoke the bug by just
>>> >> > having another instrument defined in addition to the pvoc one. For
>>> >> > example, in the attached file, replace all of instrument 2 with :
>>> >> > instr 2
>>> >> > itest = 0
>>> >> > endin
>>> >> >
>>> >> > The itest line seems to be needed to provoke the bug (any text will
>>> >> > do,
>>> >> > but just
>>> >> > instr 2
>>> >> > endin
>>> >> > will not provoke the bug.
>>> >> >
>>> >> > This was tested (and the example made) on windows,
>>> >> > but a student reported similar behaviour on OSX earlier this fall.
>>> >> >
>>> >> > Oeyvind
>>> >> >
>>> >> > 2008/5/18, Oeyvind Brandtsegg :
>>> >> >> Sorry to chime in so late.
>>> >> >> There is a bug related to using strings as p-fields.
>>> >> >> If using more then one string p-field, the last one will also be
>>> >> >> used
>>> >> >> as the string for any other (earlier) string p-fields for the same
>>> >> >> note event.
>>> >> >>
>>> >> >> Example attached.
>>> >> >>
>>> >> >> Oeyvind
>>> >> >>
>>> >> >> 2008/5/17, jpff :
>>> >> >> > This is a collection of the bugs reported and some responses
>>> >> >> >
>>> >> >> > * 'adsyn' and friends are non-functional.
>>> >> >> >
>>> >> >> >  I have started to look at LPANAL.I think we need better 
>>> >> >> > guidance
>>> >> >> >
>>> >> >> >
>>> >> >> > * Python extension modules are built, but not installed (except
>>> >> >> >  by hand)
>>> >> >> >
>>> >> >> >  Anyone?
>>> >> >> >
>>> >> >> > * STK opcodes compile from source, but Loris fail (they seem to
>>> >> >> >  want a file that doesn't exist).
>>> >> >> >
>>> >> >> >  I did not understand this one I build Loris from source
>>> >> >> >
>>> >> >> > * Csound GUI on os x
>>> >> >> >
>>> >> >> >  Anyone?  Who is responsible for Csound GUI?  Or is this 
>>> >> >> > generic?
>>> >> >> > I
>>> >> >> >  rather gave up on Winsound when others moved into that area
>>> >> >> >
>>> >> >> > * ATS opcodes don't work so well
>>> >> >> >
>>> >> >> >  Again we need evidence and examples
>>> >> >> >
>>> >> >> > * Loris on OS X -- and documentation
>>> >> >> >
>>> >> >> >  Anyone understand this?
>>> >> >> >
>>> >> >> > * Csound5GUI to work correctly (hopefully with FLTK) on all
>>> >> >> > platforms]
>>> >> >> >
>>> >> >> >  I assume this is like one above?
>>> >> >> >
>>> >> >> >
>>> >> >> >
>>> >> >> > AND FEATURE REQUESTS
>>> >> >> >
>>> >> >> > * documentation for CsoundAC
>>> >> >> >
>>> >> >> >  I think Mike has been doing this
>>> >> >> >
>>> >> >> > * windows binaries distributed as a plain zip, without 
>>> >> >> > installer,
>>> >> >> > and
>>> >> >> >  without python dependency.
>>> >> >> >
>>> >> >> >  ??
>>> >> >> >
>>> >> >> > * Loris on windows
>>> >> >> >
>>> >> >> >  Does it not work?  My windows machine is currently too slow and
>>> >> >> > too
>>> >> >> >  small-disked to do much trying
>>> >> >> >
>>> >> >> > * Multiple MIDI out ports
>>> >> >> >
>>> >> >> >  Hum
>>> >> >> >
>>> >> >> > * more PVS opcodes (formant extraction; shuffling/scattering
>>> >> >> > bins,
>>> >> >> >  spectral tuning)
>>> >> >> >
>>> >> >> >  Sounds good when someone has time
>>> >> >> >
>>> >> >> > * Mine CDP opcodes/utilities, SAOL opcodes, Supercollider
>>> >> >> > opcodes,
>>> >> >> > STK
>>> >> >> > opcodes
>>> >> >> >
>>> >> >> >  Ditto
>>> >> >> >
>>> >> >> >
>>> >> >> > * deferred tables for tablexkt opcode
>>> >> >> >
>>> >> >> >  The whole deferred table and power-of-2 needs revision
>>> >> >> >
>>> >> >> > * Beer for the developers
>>> >> >> >
>>> >> >> >  I liked this one, but Adnams is hard to get
>>> >> >> >
>>> >> >> > ==John ffitch
>>> >> >> >
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