Name: agR10195 Date: 03/04/2002



Alexey Gibadullin, ###@###.###

The following test reveals that println() crashes VM when
StackOverflowError is reached.

public class Test {
    private static int i = 0;

    public static void main(String argv[]) {
        recurse();
    }

    public static void recurse() {
        try {
            i++;
            recurse();
        } catch (StackOverflowError e) {
            System.out.println("StackOverflowError: " + i);
            return;
        } catch (OutOfMemoryError e) {
            System.out.println("OutOfMemoryError: " + i);
            return;
        }
    }
}

The crash was observed against the latest Merlin-b92 Server java_g with
default mode on Solx86 and 64-bit Solsparc only. The test passes in all
other modes on all platforms.

However, now the test crashes Hopper-b03 in the following modes.

Solx86: java, Client, -Xmixed
                 java, Client, -Xint
                 java_g, Client, -Xmixed
                 java, Server, -Xmixed
                 java, Server, -Xint
                 java_g, Server, -Xmixed
        
64-bit Solsparc: java_g, Server, -Xmixed

Win: java, Client, -Xmixed
                 java, Client, -Xcomp
                 java_g, Client, -Xmixed
                 java_g, Server, -Xmixed
                 
% ../jdk1.4.0-b92/solx86/bin/java -version
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)
% ../jdk1.4.0-b92/solx86/bin/java -Xint Test
StackOverflowError: 5526

% ../jdk1.4.1-b03/solx86/bin/java -version
java version "1.4.1-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-beta-b03)
Java HotSpot(TM) Client VM (build 1.4.1-beta-b03, mixed mode)
% ../jdk1.4.1-b03/solx86/bin/java -Xint Test
Segmentation Fault
% ../jdk1.4.1-b03/solx86/bin/java -Xcomp Test
StackOverflowError: 5976

Also, the test passes fine without System.out.println().

So, it looks like a bug was introduced in Hopper.

See also bugs that have been closed:

4254634 println() while catching StackOverflowError causes hotspot VM crash
4231968 StackOverflowError in a native method causes Segmentation Fault

This bug affects the following test from testbase_nsk:

    nsk/regression/b4470106
    
Testbase_nsk testbase is located at:

    /net/sqesvr.sfbay/export/vsn/VM/testbase/testbase_nsk.v14

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I am getting the same problem/error on Solaris IA8,IA6 & IA9 with "Xint" mode using hopper builds. The test passed with Merlin b92 on Solaris IA8,IA6 & IA9 with "Xint" mode . Looks like this bug is introduced in Hopper.

###@###.### 2002-03-18
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