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Re: Assertion failure on current master


From: address@hidden
Subject: Re: Assertion failure on current master
Date: Sat, 1 Oct 2011 19:28:13 +0200

On Oct 1, 2011, at 7:22 PM, Neil Puttock wrote:

> On 1 October 2011 18:19, Peekay Ex <address@hidden> wrote:
> 
>> Neil what command do you run when you do a test-baseline so that I
>> might get something like you do?
> 
> I don't. :)  I couldn't work out which file was failing, so I did what
> I usually do: run all the regression tests until it crashes.
> 
> The output I've posted is from debugging mozart-hrn-3.ly on its own via GDB.
> 
> Cheers,
> Neil
> 

Schei├če.

I still can't reproduce the problem on my VBox with the unoptimized binary, so 
all of my suggestions to try to help make this go away will be from thought 
experiments.

It seems as if robust_scm2interval is getting the interval from the property 
lookup instead of using the default Interval (0.0,0.0), as otherwise this crash 
wouldn't happen because there would be two valid values.  This means that in 
memory-land, somehow, somewhere, the interval that is accessed for "positions" 
is somehow being garbled such that Interval::center can't do its thing.

A one-line solution would just be to check in calc_y_offset that the interval 
actually has values before calling center, but this would be painting over rust 
(as Reinhold would say).

Could someone revert the tuplet patch and see if it compiles clean?

Again, sorry I can't be of much help, but I can't reproduce the error :(

Cheers,
MS


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