[mkgmap-dev] splitter crashes on Windows x64

Thu Jul 11 20:06:31 BST 2013

Hi,

AFAIK there should be no way for a java program to crash the JVM. So in 
any case a crash of the JVM is a problem of the JVM and not of the java 
program.

So there is no chance for splitter to avoid such a crash.

Please check if your 64bit JVM is installed correctly.

WanMil

> 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.
>