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From "Vladimir Beliaev (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-2692) [drlvm][jit] throwing exception in mixed mode leaks memory
Date Thu, 08 Feb 2007 13:36:06 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-2692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12471329
] 

Vladimir Beliaev commented on HARMONY-2692:
-------------------------------------------

Next set of comment which may be helpfull.

1. obvious, still... To investigate the leak please modify attached ExceptionLeakTest.java
to reduce number of iterations from 12'345'678 to 500'001 - so the program under memcheck
will ends much faster...

2. I've run 
 
           valgrind --leak-check=full <drlvm> ExceptionLeakTest 

   and got the most heavy leak:

==15344== 23,509,056 (23,508,960 direct, 96 indirect) bytes in 489,770 blocks are definitely
lost in loss record 55 of 55
==15344==    at 0x401B82E: malloc (vg_replace_malloc.c:149)
==15344==    by 0x4C8B992: oh_add_new_handles(ObjectHandlesNew**) (object_handles.cpp:279)
==15344==    by 0x4C8BA62: oh_allocate_handle(ObjectHandles**) (object_handles.cpp:300)
==15344==    by 0x4C8BDCC: oh_allocate_local_handle() (object_handles.cpp:384)
==15344==    by 0x4C1CF2D: class_alloc_new_object_and_run_constructor(Class*, Method*, unsigned
char*) (jit_runtime_support.cpp:2077)
==15344==    by 0x4C0353D: create_lazy_exception(Class*, Method*, unsigned char*, jvalue*)
(exceptions_jit.cpp:151)
==15344==    by 0x4C03B41: exn_propagate_exception(StackIterator*, ManagedObject**, Class*,
Method*, unsigned char*, jvalue*) (exceptions_jit.cpp:313)
==15344==    by 0x4C03F86: exn_throw_for_JIT(ManagedObject*, Class*, Method*, unsigned char*,
jvalue*) (exceptions_jit.cpp:439)
==15344==    by 0x4C0401C: exn_athrow(ManagedObject*, Class*, Method*, unsigned char*) (exceptions_jit.cpp:462)
==15344==    by 0x4C044A5: rth_throw_lazy(Method*) (exceptions_jit.cpp:594)
==15344==    by 0x4441BD4: ???
==15344==    by 0x8D6E203: ???

Thanks
Vladimir


> [drlvm][jit] throwing exception in mixed mode leaks memory
> ----------------------------------------------------------
>
>                 Key: HARMONY-2692
>                 URL: https://issues.apache.org/jira/browse/HARMONY-2692
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: Windows XP i686
>            Reporter: Salikh Zakirov
>         Attachments: BufferWrap.java, ExceptionLeakTest.java
>
>
> The function wrap() of nio buffers leaks memory when invoked with illegal arguments.
> When the attached test BufferWrap.java is run on DRLVM, it steadily increases used memory
until crash.

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