Occasional segfault when starting a game

[bluebear94]

Occasionally when starting a game, Danmakufu segfaults.

The exact cause is unknown.

[bluebear94]

From using WriteLog and inspecting the log file, the segfault seems to occur at the call to StartStageScene. For reference, here is the end of the log file:

2015/09/20 20:55:31.879 main set
2015/09/20 20:55:31.901 DCM set
2015/09/20 20:55:31.926 replay set
2015/09/20 20:55:31.950 cannot file open path[C:\cygwin64\home\tkook\cy06\script/cy06/package/../player/player4.dnh]
2015/09/20 20:55:31.966 cannot file open path[C:\cygwin64\home\tkook\cy06\script/cy06/package/../player/player5.dnh]
2015/09/20 20:55:32.067 TextureManager：テクスチャを読み込みました(LT)[C:/cygwin64/home/tkook/cy06/script/cy06/resource/rentex/09_DIFFUSE.jpg]
2015/09/20 20:55:32.091 TextureManager：テクスチャを読み込みました[C:/cygwin64/home/tkook/cy06/resource/img/System_Stg_Item.png]
2015/09/20 20:55:32.116 TextureManager：テクスチャを読み込みました[C:/cygwin64/home/tkook/cy06/resource/img/System_Stg_Digit.png]
2015/09/20 20:55:32.141 メインスクリプト[C:/cygwin64/home/tkook/cy06/script/cy06/package/../stage/01.dnh]
2015/09/20 20:55:32.163 システムスクリプト[C:/cygwin64/home/tkook/cy06/script/cy06/package/../stage/../system/system.dnh]
2015/09/20 20:55:32.282 弾データを読み込みました:C:/cygwin64/home/tkook/cy06/script/cy06/player/playersd.dnh
2015/09/20 20:55:32.338 TextureManager：テクスチャを読み込みました[C:/cygwin64/home/tkook/cy06/script/cy06/resource/stgframe.png]
2015/09/20 20:55:32.359 自機スクリプト[C:\cygwin64\home\tkook\cy06\script/cy06/package/../player/player0.dnh]

[bluebear94]

7ee6533 probably makes the issue less common. Not closing until the lack of segfaults is confirmed.

[bluebear94]

Confirmed that segfaults happen even after 7ee6533.