Sega Megadrive / Sega-CD Emulation sometimes freezes when loading a savestate

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What steps will reproduce the problem?
1.Currently trying to play through thunderhawk sega cd, but it has happened  
with other mega drive and sega dc games I played recently.

2.  Record a movie and save / load state as usual. 
3.

What is the expected output? What do you see instead?

I cant make it happen on demand. It just happens randomly.

Sometimes when loading a savestate, the emulation will just freeze.  Bizhawk it 
self doesn't freeze and loading an older, or last backup savestate will allow 
you to unfreeze and continue.

During thunderhawk, the freeze is happening at least once per level

What version of the product are you using? On what operating system?
SVN6148 Windows 7 64bit

Please provide any additional information below.

Original issue reported on code.google.com by MThompso...@gmail.com on 28 Feb 2014 at 12:39

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I tried to reproduce this and could not.  I probably don't use the savestate 
system as rigorously as a TASer would, though.

Original comment by goyu...@gmail.com on 12 Mar 2014 at 9:32

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Original comment by zero...@zeromus.org on 9 Jun 2014 at 3:55

• Added labels: Core-Genplus-GX

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Original comment by zero...@zeromus.org on 10 Jun 2014 at 10:46

• Changed state: Pending

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I was unable to recreate this as well.  I saved during disc read events and 
successfully loaded them.  I also tried during non disc read events and 
successfully loaded those savestates as well.

Can we get more details on how/when this happens?  Have you tried newer 
versions?  Which?

I tested this with SVN r7352.

Original comment by hegyak on 22 Jul 2014 at 2:29

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[deleted comment]

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I deleted last report as now I am hammering save/load states while recording a 
few sega cd games for a more useful report.  The random freezes on load states 
are still appearing.  Due to being so random I cant give an easy way to 
reproduce other than trying to input record and abuse save / load states.  I am 
currently on svn 7975 so this long standing bug is still around. 

movie sync isn't a problem just now though so maybe that is sorted.  I will 
retry Jag XJ220 at some point to know for sure.

Original comment by MThompso...@gmail.com on 16 Oct 2014 at 11:02