Comment 8 for bug 803774

Revision history for this message
Chiara Modenese (chiara-modenese) wrote : Re: [Yade-dev] [Bug 803774] Re: Saving, loading simulation with erased bodies crash.

There is no need to post a script. You can (I can, at least) reproduce the bug just by following instructions that were given below when the bug was open. I think it is quite essential that we fix this as removing bodies is a common operation. Can you please try to reproduce the bug too, Anton (or anybody else) to make sure is not just me? Thanks, Chiara

On 2 Jul 2011, at 18:48, Anton Gladky wrote:

> Hopefully fixed in r2880.
> Please, check it. If the problem still appears, do not hesitate to reopen a bug.
>
> ** Changed in: yade
> Status: New => Fix Released
>
> ** Changed in: yade
> Importance: Undecided => Low
>
> --
> You received this bug notification because you are a member of Yade
> developers, which is the registrant for Yade.
> https://bugs.launchpad.net/bugs/803774
>
> Title:
> Saving, loading simulation with erased bodies crash.
>
> Status in Yet Another Dynamic Engine:
> Fix Released
>
> Bug description:
> Here is the bug :
>
> - launch yade (for example without any script)
> - add a sphere : O.bodies.append(utils.sphere((0.2,0.2,0.2),0.006))
> - delete it : O.bodies.erase(0)
> - save yade's universe : O.save("./test")
> - quit yade
> - launch yade
> - load the file : O.load("./test")
> ->segmentation fault
>
> I think it's because when you erase something the size of O.bodies (etc...) doesn't change and now contains an empty value. (the c++ array may not be dynamic ?)
> So when the O.load() function is called, yade try to load a non-existant body ?
>
> Maybe this can be fixed by changing the load() method ?
>
> I joined the debug output.
>
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