Status fields:
| creation_ts: | 2008-09-17 10:23 |
|---|---|
| component: | jit |
| version: | default branch |
| rep_platform: | powerpc |
| op_sys: | All |
| bug_status: | RESOLVED |
| resolution: | FIXED |
| reporter: | twisti@complang.tuwien.ac.at |
Size small works but default and large are broken. $ cacao -jar dacapo-2006-10-MR2.jar -s default jython *sys-package-mgr*: processing new jar, '/localtmp/twisti/dacapo/dacapo-2006-10-MR2.jar' *sys-package-mgr*: processing new jar, '/home/twisti/cacao/cacao/src/classes/vm.zip' *sys-package-mgr*: processing new jar, '/nfs/nfstmp/twisti/powerpc- linux/install/classpath/share/classpath/glibj.zip' ===== DaCapo jython starting ===== Traceback (innermost last): File "./scratch/jython/pybench/pybench.py", line 946, in ? File "/localtmp/twisti/dacapo/./scratch/jython/pybench/CommandLine.py", line 346, in __init__ File "./scratch/jython/pybench/pybench.py", line 912, in main File "./scratch/jython/pybench/pybench.py", line 537, in run File "/localtmp/twisti/dacapo/./scratch/jython/pybench/pybench.py", line 325, in run File "/localtmp/twisti/dacapo/./scratch/jython/pybench/Constructs.py", line 12, in test java.lang.ArrayIndexOutOfBoundsException: 283965264 at org.python.core.PyFrame.setlocal(Unknown Source) at Constructs$py.test$2(/localtmp/twisti/dacapo/./scratch/jython/pybench/Constructs.py:12) at Constructs$py.call_function(/localtmp/twisti/dacapo/./scratch/jython/pybench/Const ructs.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyMethod.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at pybench$py.run$9(/localtmp/twisti/dacapo/./scratch/jython/pybench/pybench.py:325) at pybench$py.call_function(/localtmp/twisti/dacapo/./scratch/jython/pybench/pybench.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyMethod.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at org.python.pycode._pyx1.run$19(./scratch/jython/pybench/pybench.py:537) at org.python.pycode._pyx1.call_function(./scratch/jython/pybench/pybench.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyMethod.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at org.python.pycode._pyx1.main$25(./scratch/jython/pybench/pybench.py:912) at org.python.pycode._pyx1.call_function(./scratch/jython/pybench/pybench.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyMethod.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at CommandLine$py.__init__$15(/localtmp/twisti/dacapo/./scratch/jython/pybench/Comman dLine.py:346) at CommandLine$py.call_function(/localtmp/twisti/dacapo/./scratch/jython/pybench/Comm andLine.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyInstance.__init__(Unknown Source) at org.python.core.PyClass.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at org.python.pycode._pyx1.f$0(./scratch/jython/pybench/pybench.py:946) at org.python.pycode._pyx1.call_function(./scratch/jython/pybench/pybench.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyCode.call(Unknown Source) at org.python.core.Py.runCode(Unknown Source) at org.python.core.__builtin__.execfile_flags(Unknown Source) at org.python.util.PythonInterpreter.execfile(Unknown Source) at org.python.util.jython.main(Unknown Source) at dacapo.jython.JythonHarness.iterate(JythonHarness.java:38) at dacapo.Benchmark.run(Benchmark.java:126) at dacapo.TestHarness.runBenchmark(TestHarness.java:302) at dacapo.TestHarness.main(TestHarness.java:242) at Harness.main(Harness.java:5) java.lang.ArrayIndexOutOfBoundsException: java.lang.ArrayIndexOutOfBoundsException: 283965264
Ooops. As I piped the output from above, some output is missing. Here is the output again: $ cacao -jar dacapo-2006-10-MR2.jar -s default jython *sys-package-mgr*: processing new jar, '/localtmp/twisti/dacapo/dacapo-2006-10-MR2.jar' *sys-package-mgr*: processing new jar, '/localtmp/twisti/cacao/build- gnuclasspath-m32/src/classes/vm.zip' *sys-package-mgr*: processing new jar, '/nfs/nfstmp/twisti/powerpc- linux/install/classpath/share/classpath/glibj.zip' ===== DaCapo jython starting ===== ------------------------------------------------------------------------------- PYBENCH 2.0 ------------------------------------------------------------------------------- * using Python 2.2a1 * Python version doesn't support garbage collection * system check interval set to maximum: 2147483647 * using timer: time.time Calibrating tests. Please wait... Running 1 round(s) of the suite at warp factor 20: Traceback (innermost last): File "./scratch/jython/pybench/pybench.py", line 946, in ? File "/localtmp/twisti/dacapo/./scratch/jython/pybench/CommandLine.py", line 346, in __init__ File "./scratch/jython/pybench/pybench.py", line 912, in main File "./scratch/jython/pybench/pybench.py", line 537, in run File "/localtmp/twisti/dacapo/./scratch/jython/pybench/pybench.py", line 325, in run File "/localtmp/twisti/dacapo/./scratch/jython/pybench/Constructs.py", line 12, in test java.lang.ArrayIndexOutOfBoundsException: 283591808 at org.python.core.PyFrame.setlocal(Unknown Source) at Constructs$py.test$2(/localtmp/twisti/dacapo/./scratch/jython/pybench/Constructs.py:12) at Constructs$py.call_function(/localtmp/twisti/dacapo/./scratch/jython/pybench/Const ructs.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyMethod.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at pybench$py.run$9(/localtmp/twisti/dacapo/./scratch/jython/pybench/pybench.py:325) at pybench$py.call_function(/localtmp/twisti/dacapo/./scratch/jython/pybench/pybench.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyMethod.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at org.python.pycode._pyx1.run$19(./scratch/jython/pybench/pybench.py:537) at org.python.pycode._pyx1.call_function(./scratch/jython/pybench/pybench.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyMethod.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at org.python.pycode._pyx1.main$25(./scratch/jython/pybench/pybench.py:912) at org.python.pycode._pyx1.call_function(./scratch/jython/pybench/pybench.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyMethod.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at CommandLine$py.__init__$15(/localtmp/twisti/dacapo/./scratch/jython/pybench/Comman dLine.py:346) at CommandLine$py.call_function(/localtmp/twisti/dacapo/./scratch/jython/pybench/Comm andLine.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyFunction.__call__(Unknown Source) at org.python.core.PyInstance.__init__(Unknown Source) at org.python.core.PyClass.__call__(Unknown Source) at org.python.core.PyObject.__call__(Unknown Source) at org.python.pycode._pyx1.f$0(./scratch/jython/pybench/pybench.py:946) at org.python.pycode._pyx1.call_function(./scratch/jython/pybench/pybench.py) at org.python.core.PyTableCode.call(Unknown Source) at org.python.core.PyCode.call(Unknown Source) at org.python.core.Py.runCode(Unknown Source) at org.python.core.__builtin__.execfile_flags(Unknown Source) at org.python.util.PythonInterpreter.execfile(Unknown Source) at org.python.util.jython.main(Unknown Source) at dacapo.jython.JythonHarness.iterate(JythonHarness.java:38) at dacapo.Benchmark.run(Benchmark.java:126) at dacapo.TestHarness.runBenchmark(TestHarness.java:302) at dacapo.TestHarness.main(TestHarness.java:242) at Harness.main(Harness.java:5) java.lang.ArrayIndexOutOfBoundsException: java.lang.ArrayIndexOutOfBoundsException: 283591808
The exception throwing basic block is: ======== L001 ======== (flags: 1, bitflags: 0, next: 2, type: STD, icount: 7, preds: 1 [ 0 ]): succs: 1 [ 3 ] IN: [] javalocals: [La0(r30) Li1(r29) La2(r28)] 0: 4: ALOAD L0 => La0(r30) 0: 5: GETFIELD La0(r30) <field> org.python.core.PyFrame.f_fastlocals [Lorg/python/core/PyObject; PUBLIC, offset: 36 => Ta9!(r31) 0: 6: ILOAD L1 => Li1(r29) 0: 7: ALOAD L2 => La2(r28) 0: 8: AASTORE Ta9!(r31) Li1(r29) La2(r28) 0: 9: GOTO --> L003 0: 10: NOP OUT: [] 0x30ba07c4: 83fe0024 lwz r31,36(r30) 0x30ba07c8: 821f0008 lwz r16,8(r31) 0x30ba07cc: 7cbd8008 twlge r29,r16 0x30ba07d0: 820dffe8 lwz r16,-24(r13) 0x30ba07d4: 7e0903a6 mtctr r16 0x30ba07d8: 7fe3fb78 mr r3,r31 0x30ba07dc: 7f84e378 mr r4,r28 0x30ba07e0: 4e800421 bctrl 0x30ba07e4: 7c631b79 mr. r3,r3 0x30ba07e8: 40820008 bne- 0x0000000030ba07f0 0x30ba07ec: 80000003 lwz r0,3(0) 0x30ba07f0: 57ac103a rlwinm r12,r29,2,0,29 0x30ba07f4: 398c000c addi r12,r12,12 0x30ba07f8: 7f9f612e stwx r28,r31,r12 0x30ba07fc: 48000040 b 0x0000000030ba083c
The trap instruction is: 0x30ba07cc: 7cbd8008 twlge r29,r16 r16 seems to be OK: r16 0x5 5 But r29 looks like an object address: r29 0x10e39708 283350792 Because r30 (this pointer) is: r30 0x110cbf00 286048000
It fails with the same exception on the cacao-1.0.x branch. So it's not related to recent changes.
I'm not sure if I can trust the backtrace in GDB: Program received signal SIGTRAP, Trace/breakpoint trap. [Switching to Thread 805478432 (LWP 30824)] 0x30ba07cc in ?? () (gdb) bt #0 0x30ba07cc in ?? () #1 0x30ccc404 in ?? () #2 0x30ccc404 in ?? () #3 0x30c42808 in ?? () #4 0x30b7635c in ?? () #5 0x30b7e8bc in ?? () but the calling instructions seem to be: ======== L001 ======== (flags: 1, bitflags: 0, next: 2, type: STD, icount: 15, preds: 1 [ 361 ]): succs: 2 [ 10 2 ] IN: [] javalocals: [- La0(r28) La1(r27) La2(r26) La3(r25) -] 12: 77: ALOAD L0 => La0(r28) 12: 78: ICONST 3 (0x00000003) => Ai52( r4) 12: 79: ALOAD L2 => La2(r26) 12: 80: INVOKEVIRTUAL La0(r28) Ai52( r4) La2(r26) <method> org.python.core.PyFrame.setlocal(ILorg/python/core/PyObject;)V PUBLIC (mono) (impl) <snip> 12: 0x30ccc3e8: 38800003 li r4,3 0x30ccc3ec: 7f45d378 mr r5,r26 0x30ccc3f0: 7f83e378 mr r3,r28 0x30ccc3f4: 81830000 lwz r12,0(r3) 0x30ccc3f8: 81ac036c lwz r13,876(r12) 0x30ccc3fc: 7da903a6 mtctr r13 0x30ccc400: 4e800421 bctrl 0x30ccc404: 7d6802a6 mflr r11 0x30ccc408: 39abfcbc addi r13,r11,-836 Setting r4 to 3 looks OK so I don't know why (and where) it gets destroyed.
cacaojvm.org
The trace log is HUGE. After about 400 million calls we have the faulting one:
LOG: [0xf7fda000] 399853665 -54-
called: org.python.core.PyFrame.setlocal(ILorg/python/core/PyObject;)V
PUBLIC(0x10da8
e40 (Class = "org.python.core.PyFrame"), 8 (0x00000008), 0x11586e90 (Class =
"org.python.core.PyInteger"))
The caller is:
LOG: [0xf7fda000] 399853532 -53-
called:
Constructs$py.test$2(Lorg/python/core/PyFrame;)Lorg/python/core/PyObject; PUBLIC(0x11
5defb0 (Class = "Constructs$py"), 0x10da8e40 (Class = "org.python.core.PyFrame"))
Found the bug. It's a backward branch: ======== L361 ======== (flags: 1, bitflags: 0, next: 362, type: STD, icount: 9, preds: 4 [ 0 357 359 360 ]): succs: 2 [ 1 362 ] IN: [] javalocals: [- La0(r28) La1(r27) La2(r26) La3(r25) -] 12:4371: ALOAD L0 => La0(r28) 12:4372: ICONST 12 (0x0000000c) => Ai48( r4) 12:4373: INVOKEVIRTUAL La0(r28) Ai48( r4) <method> org.python.core.PyFrame.setline(I)V PUBLIC (mono) (impl) 12:4374: ALOAD L1 => La1(r27) 12:4375: INVOKEVIRTUAL La1(r27) <method> org.python.core.PyObject.__iternext__()Lorg/python/core/PyObject; PUBLIC (impl) => La2(r26) 12:4376: ASTORE La2(r26) => L2 (javaindex 3) 12:4377: ALOAD L2 => La2(r26) 12:4378: IFNONNULL La2(r26) --> L001 12:4379: NOP OUT: [] 12: 0x30cd5bb8: 3880000c li r4,12 0x30cd5bbc: 7f83e378 mr r3,r28 0x30cd5bc0: 81830000 lwz r12,0(r3) 0x30cd5bc4: 81ac0354 lwz r13,852(r12) 0x30cd5bc8: 7da903a6 mtctr r13 0x30cd5bcc: 4e800421 bctrl 0x30cd5bd0: 7d6802a6 mflr r11 0x30cd5bd4: 3dabffff addis r13,r11,-1 0x30cd5bd8: 39ad64f0 addi r13,r13,25840 0x30cd5bdc: 7f63db78 mr r3,r27 0x30cd5be0: 81830000 lwz r12,0(r3) 0x30cd5be4: 81ac010c lwz r13,268(r12) 0x30cd5be8: 7da903a6 mtctr r13 0x30cd5bec: 4e800421 bctrl 0x30cd5bf0: 7d6802a6 mflr r11 0x30cd5bf4: 3dabffff addis r13,r11,-1 0x30cd5bf8: 39ad64d0 addi r13,r13,25808 0x30cd5bfc: 7c7a1b78 mr r26,r3 0x30cd5c00: 7f5ad379 mr. r26,r26 0x30cd5c04: 41820008 beq- 0x0000000030cd5c0c 0x30cd5c08: 4bff67e4 b 0x0000000030ccc3ec The branch address is off by one: 0x30cd5c08: 4bff67e4 b 0x0000000030ccc3ec Should be: 0x30ccc3e8
Fixed with: http://mips.complang.tuwien.ac.at/hg/cacao/rev/3d4bd3fd4886