Re: [rvm-research] [rvm-core] Regarding Exception thrown in RefCount Implementation.

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Hari,

Could you attach a patch containing the smallest change that
reproduces this error ?  Perhaps then someone can help.

cheers,
Robin

On 18/12/13 16:08, Hari Krishnan wrote:
> Hi
> 
> I have allocated a Header word along with 8 header bits in the
> reference count garbage collector implementation. I didn't use that
> header word allocated except it is allocated for each object. But
> when I run the implementation I end up with exceptions. It would be
> great help if someone summarizes the reason for this exception. 
> Exception in thread "MainThread": JikesRVM: internal error:
> recursive use of hardware exception registers (exiting)
> 
> -- Stack -- (0x67507c6c 1132)   at [0x67507c6c, 0x5b308f54] 
> Ljava/nio/charset/Charset; 
> provider()Ljava/nio/charset/spi/CharsetProvider; at line 247 
> (0x67507c90 1130)   at [0x67507c90, 0x5b3090fc] 
> Ljava/nio/charset/Charset; 
> charsetForName(Ljava/lang/String;)Ljava/nio/charset/Charset; at
> line 208 (0x67507cb0 1129)   at [0x67507cb0, 0x5b0274ef] 
> Ljava/nio/charset/Charset; 
> forName(Ljava/lang/String;)Ljava/nio/charset/Charset; at line 188 
> (0x67507cdc 1396)   at [0x67507cdc, 0x5b089ebf] Ljava/lang/String; 
> getBytes(Ljava/lang/String;)[B at line 733 (0x67507d0c 11899)   at
> [0x67507d0c, 0x5b08a174] Ljava/io/PrintStream; 
> writeChars(Ljava/lang/String;II)V at line 342 (0x67507d3c 11896)
> at [0x67507d3c, 0x5b089b26] Ljava/io/PrintStream; 
> print(Ljava/lang/String;Z)V at line 295 (0x67507d64 11906)   at
> [0x67507d64, 0x5b0c04c3] Ljava/io/PrintStream; 
> print(Ljava/lang/String;)V at line 422 (0x67507d88 156)   at
> [0x67507d88, 0x5b0c052c] Ljava/lang/Throwable; 
> printStackTrace(Ljava/io/PrintStream;)V at line 363 (0x67507da8
> 155)   at [0x67507da8, 0x5b1d8686] Ljava/lang/Throwable; 
> printStackTrace()V at line 352 (0x67507dc8 13080)   at [0x67507dc8,
> 0x5b339a47] Lorg/jikesrvm/scheduler/RVMThread; 
> handleUncaughtException(Ljava/lang/Throwable;)V at line 4723 
> (0x67507de8 8645)   at [0x67507de8, 0x5b339ce0] 
> Lorg/jikesrvm/runtime/RuntimeEntrypoints; 
> handleUncaughtException(Ljava/lang/Throwable;)V at line 1071 
> (0x67507e34 8644)   at [0x67507e34, 0x5b33ab25] 
> Lorg/jikesrvm/runtime/RuntimeEntrypoints; 
> deliverException(Ljava/lang/Throwable;Lorg/jikesrvm/ArchitectureSpecific$Registers;)V
>
> 
at line 1066
> (0x67507e74 8632)   at [0x67507e74, 0x5b2c7f0c] 
> Lorg/jikesrvm/runtime/RuntimeEntrypoints;
> deliverHardwareException(II)V at line 796 (0x67507e90 1)   at
> [0x67507e90, 0x5b2c7f0c] <hardware trap> (0x6753af70 4857)   at
> [0x6753af70, 0x5b2cd788] Ljava/security/VMAccessController;
> popContext()V at line 135 (0x6753af90 4436)   at [0x6753af90,
> 0x5b1dceb9] Ljava/security/AccessController; 
> doPrivileged(Ljava/security/PrivilegedAction;)Ljava/lang/Object; at
> line 100 (0x6753afb0 13031)   at [0x6753afb0, 0x5b1dd152] 
> Lorg/jikesrvm/scheduler/RVMThread; callSystemExit(I)V at line 2786 
> (0x6753afdc 13030)   at [0x6753afdc, 0x5b33152f] 
> Lorg/jikesrvm/scheduler/RVMThread; terminate()V at line 2754 
> (0x6753affc 13115)   at [0x6753affc, 0x08050376] 
> Lorg/jikesrvm/scheduler/RVMThread; startoff()V at line 2631
> 
> In thread 7 getInstructionOffset: ip is not within compiled code
> for method: 0x00000000 supposed method is
> Lgnu/classpath/SystemProperties;.getProperty 
> (Ljava/lang/String;)Ljava/lang/String; code for this method starts
> at 0x5b26e980 and has last valid return address of 0x5b26e9dc The
> requested instruction address was 0x00000000 JikesRVM: internal
> error: recursive use of hardware exception registers (exiting)
> 
> 
> Cheers Hari Krishnan
> 
> 
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>
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Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
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