ozengine sometimes crashes with an assertion that failed

[jaymelbe]

Hello, thanks for the good job and all the new updates.
However I am facing an issue with the latest build (4127).
I am running it on Windows 8.1 and it is a 64bit version of Mozart2. Sometimes while everything "seemed" to be ok.. I press a button of my application (which usually works) and then get this crash:

Assertion failed!

Program: C:\Users\jaymelbe\Dropbox\redist\bin\ozengine.exe
File: C:/projects/mozart2/vm/boostenv/main/../../vm/main/runnable.hh, Line 44

Expression: from._last == from._list.begin()

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

Have anyone already faced that? Any idea what it means?
Thx for help!

[jaymelbe]

I have made some tests with the same code, but using the build 4105 and I never get this issue.
So it should have been added with the recent fixes

[jaymelbe]

Nobody able to explain what it is this file about? And why is the assert failing:

mozart2/vm/vm/main/runnable.hh

Line 44 in 61fe075

assert(from._last == from._list.begin());

I really need help please.

[eregon]

Looks like the intermediate state (used to handle non-idempotent code) gets corrupted.
But I guess only @sjrd knows that well.
Is it expected to have asserts enabled on Windows releases?
@jaymelbe Could you give the commit range?

[jaymelbe]

The build from Sept 24 is ok.. so I guess it is the 6 latest commits that may have corrupted something.

[sjrd]

git bisect anyone?

[sjmackenzie]

http://webchick.net/node/99

[jaymelbe]

I don't use git but I will try to do that as soon as possible.
The problem is that it happens randomly.. Hard to find a code that always trigger this issue.