[Bug 2693] New: ppc64 + CACAO cannot initialize ImageIO

[bugzilla-daemon at icedtea.classpath.org]

http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=2693

            Bug ID: 2693
           Summary: ppc64 + CACAO cannot initialize ImageIO
           Product: IcedTea
           Version: 2.6.2
          Hardware: ppc64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: CACAO
          Assignee: stefan at complang.tuwien.ac.at
          Reporter: chewi at gentoo.org
                CC: unassigned at icedtea.classpath.org, xerxes at zafena.se

Created attachment 1439
  --> http://icedtea.classpath.org/bugzilla/attachment.cgi?id=1439&action=edit
End of icedtea build log

When building icedtea 2.6.2, a Java process spins on the CPU forever while
trying to process some PNG images using ImageIO. As far as I recall, I have
only ever seen this on ppc64 and icedtea 2. I can't say for sure that it
doesn't affect HotSpot because I have never been able to get that to work due
to bug #2368. Using "taskset -c 0" doesn't help here so it doesn't appear to be
a race condition.

The issue isn't specific to what the icedtea build is doing. Even this simple
program will give the same result. The same code run with icedtea 1.6 exits
immediately as it should.

import javax.imageio.*;

public class Test {
  public static void main(String[] args) {
    ImageIO.scanForPlugins();
  }
}

The backtrace when running this is as follows:

Full thread dump CACAO 1.6.2pre+rc182f119eaad:

"null" prio=5 t=0x10082f00 tid=0x3fff87193000 (70366715785216) index=1 runnable
        at
java.security.AccessController.doPrivileged(Ljava/security/PrivilegedAction;)Ljava/lang/Object;(Native
Method)
        at java.awt.Toolkit.loadLibraries()V(Toolkit.java:1653)
        at java.awt.Toolkit.<clinit>()V(Toolkit.java:1682)
        at sun.awt.AppContext$3.run()Ljava/lang/Void;(AppContext.java:274)
        at sun.awt.AppContext$3.run()Ljava/lang/Object;(AppContext.java:1)
        at
java.security.AccessController.doPrivileged(Ljava/security/PrivilegedAction;)Ljava/lang/Object;(Native
Method)
        at sun.awt.AppContext.initMainAppContext()V(AppContext.java:263)
        at sun.awt.AppContext.access$6()V(AppContext.java:259)
        at sun.awt.AppContext$4.run()Lsun/awt/AppContext;(AppContext.java:318)
        at sun.awt.AppContext$4.run()Ljava/lang/Object;(AppContext.java:1)
        at
java.security.AccessController.doPrivileged(Ljava/security/PrivilegedAction;)Ljava/lang/Object;(Native
Method)
        at
sun.awt.AppContext.getAppContext()Lsun/awt/AppContext;(AppContext.java:300)
        at
javax.imageio.spi.IIORegistry.getDefaultInstance()Ljavax/imageio/spi/IIORegistry;(IIORegistry.java:154)
        at javax.imageio.ImageIO.<clinit>()V(ImageIO.java:66)
        at Test.main([Ljava/lang/String;)V(Test.java:5)

"null" daemon prio=10 t=0x10082e40 tid=0x3fff844ae1a0 (70366668710304) index=2
waiting
        at java.lang.Object.wait(J)V(Native Method)
        at java.lang.Object.wait()V(Object.java:503)
        at java.lang.ref.Reference$ReferenceHandler.run()V(Reference.java:133)

"null" daemon prio=5 t=0x10082d80 tid=0x3fff843cd1a0 (70366667788704) index=3
runnable
        <<No stacktrace available>>

If I run the process via qemu-ppc64 then it spews out tons of this:

Invalid data memory access: 0x0000004000bfdf00
NIP 0000004000b198c4   LR 0000004000b198cc CTR 00000040009373dc XER
0000000000000000 CPU#0
MSR 8000000002806000 HID0 0000000000000000  HF 0000000002806000 idx 0
TB 10874554 46705855841447759
GPR00 0000004000b1986c 00000040007fb0b0 0000004000c19a00 0000000000000006
GPR04 0000000000000000 0000004000c27e48 0000000000000008 0000000000000020
GPR08 0000000000000000 0000004000bfdf00 0000004000c29a00 00000040007faf78
GPR12 00000040009373dc 0000004000ad4b60 00000000100250b0 0000004000bc5410
GPR16 0000000000000000 0000000010023598 0000000010023538 0000000010023500
GPR20 0000000010023448 0000000000000000 ffffffffffffffff 0000000000000000
GPR24 0000000000000001 00000000100235f8 0000000010023418 00000000100235c0
GPR28 0000000010023560 0000000000200000 0000004000c00294 000000007ff00000
CR 24002878  [ E  G  -  -  E  L  GO L  ]             RES ffffffffffffffff
FPR00 3f847ae140000000 0000000000000000 0000000000000000 0000000000000000
FPR04 0000000000000000 0000000000000000 0000000000200000 0000000010021450
FPR08 00000040007fae30 00000040008ba73c 0000000000000000 4000000000000000
FPR12 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR20 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR24 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR28 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPSCR 0000000000000000

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