Comment 2 for bug 503271

My CPU is an Intel E7300, much more powerful than Atom one.

> Moreover, I did not make a UI change during the MD5 sum check which can make the user think the software is stuck.

It's possible, GS UI was not frozen. Progress bar was glowing, but was at 100%. I did not see confirmation dialog.

I waited for a long time after merge, at least 5 minutes.

I had the time to launch jconsole, to check each thread application. None was busy.
If MD5 sum was running, I should have seen one thread in MD5Hasher.hashToString(...) for example.

I will try to reproduce the issue. It would be good to have a debug mode, with verbose traces to have something to give to you.