[mkgmap-dev] splitter crashes on Windows x64

Thu Jul 11 12:47:52 BST 2013

Hi,

I'm creating maps for Europe, which is a big piece of data. Splitting it 
is a main problem. I'm using Windows 7 x64 and recent splitter 306. My 
experiences are following:

Splitter on java 32bit and standard settings can split Europe.

If I add contours data to Europe file, splitter on java 32 fails because 
of not enough memory, i can use maximum -Xmx1600M.

Any use of splitter on java 64bit most probably will crash java VM. 
Usually this happens after 1 hour of work, often when starting 
processing second set of areas. I have many logs form crashes, but don't 
know how useful it could be. Logs contains info like:
# JRE version: 7.0_21-b11
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.21-b01 mixed mode 
windows-amd64 compressed oops)
# Problematic frame:
# J 
java.util.HashMap.put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;

# Problematic frame:
# J  java.util.HashMap.containsKey(Ljava/lang/Object;)Z

# Problematic frame:
# V  [jvm.dll+0x360038]

# Problematic frame:
# j 
java.util.AbstractCollection.toArray([Ljava/lang/Object;)[Ljava/lang/Object;+88

# Problematic frame:
# J 
uk.me.parabola.splitter.BinaryMapWriter$PBFSerializer$Prim.addStringsToStringtable()V

Splitting contours created for Europe by pphyghtmap with default 
settings usually fails. I have changed max-nodes-per-way form default 
2000 to 500 which allowed splitter to finish this task.

I understand that it is java x64 which crashes. But since 32bit version 
is already too limited to process big data, wouldn't be good to 
investigate this problem? Maybe you could make spliter compatible with 
64bit version.

-- 
Best regards
popej