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From "Vera Petrashkova (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-1650) [drlvm][exception handling] enqueuing references, doing finalization, running finalizers can lose a risen exception
Date Thu, 12 Apr 2007 03:10:33 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-1650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12488244
] 

Vera Petrashkova commented on HARMONY-1650:
-------------------------------------------

Test testGetMeth passes now. r526746 was used to execute this test.

> [drlvm][exception handling] enqueuing references, doing finalization, running finalizers
can lose a risen exception
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-1650
>                 URL: https://issues.apache.org/jira/browse/HARMONY-1650
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Serguei Zapreyev
>         Assigned To: Gregory Shimansky
>            Priority: Minor
>         Attachments: a4.java, Fix-exn_raised-assertion-during-finalization-start-up.patch,
H1650.ex_impl.2.patch, H1650.ex_impl.3.patch, H1650.ex_impl.patch, lin.log, testGetMeth.java,
testGetMeth1.java, win.log
>
>
> Memory allocation within VM causes irregularly enqueuing references, doing finalization,
running 
> finalizers. These processes lead to losing an exception risen within a java programm
executed by VM. 
> Please look at the following stack:
> 	harmonyvm.dll!exn_clear()  Line 113	C++
>  	harmonyvm.dll!Objects_To_Finalize::run_finalizers()  Line 343	C++
>  	harmonyvm.dll!vm_run_pending_finalizers()  Line 472	C++
>  	harmonyvm.dll!vm_hint_finalize()  Line 193	C++
>  	gc.dll!gc_alloc(unsigned int in_size=0x0000000c, unsigned int ah=0x013c1f40, void *
thread_pointer=0x0102d1e8)  Line 243 + 0x8	C++
> <<<...>>>
> or at the following:
>  	vmcore.dll!exn_clear()  Line 106	C++
>  	vmcore.dll!References_To_Enqueue::enqueue_references()  Line 453 + 0x5	C++
>  	vmcore.dll!vm_enqueue_references()  Line 516	C++
>  	vmcore.dll!vm_hint_finalize()  Line 192	C++
>  	gc.dll!Garbage_Collector::check_hint_to_finalize()  Line 208 + 0xc	C++
>  	gc.dll!gc_alloc(unsigned int size=0x0000000c, unsigned int ah=0x00d71b90, void * tp=0x003be070)
 Line 961	C++
> <<<...>>>
> So, this intricated enough bug leads to instability of VM's behaviour.
> I'm going to attach the fix of the issue.
> The detecting test will be attached as well.

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