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From "Alexey Varlamov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-3010) [drlvm][thread manager] VM crashes with seg fault on the recursive call of a synchronized method
Date Fri, 02 Feb 2007 13:31:06 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-3010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12469754
] 

Alexey Varlamov commented on HARMONY-3010:
------------------------------------------

Reproduced on truly x86 SUSE10 SMP box, MyStack2 outputs on release build:

SIGSEGV in VM code.
Stack trace:

and hangs.

On Xeon SUSE9 32bit SMP box, it segfaults too but does not hangs and does not provide backtrace.

> [drlvm][thread manager] VM crashes with seg fault on the recursive call of a synchronized
method
> ------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3010
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3010
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Elena Semukhina
>         Attachments: MyStack.java, MyStack2.java
>
>
> The attached test crashes with the following message on Linux SUSE9 ia32:
> SIGSEGV in VM code.
> Stack trace:
>         1: locktable_get_fat_monitor (/nfs/ins/proj/drl/coreapi/esemukhi/svn/drlvm/trunk/vm/thread/src/thread_native_thin_monitor.c:655)
>         2: hythread_thin_monitor_try_enter (/nfs/ins/proj/drl/coreapi/esemukhi/svn/drlvm/trunk/vm/thread/src/thread_native_thin_monitor.c:310)
>         3: IP is 0x416A05BD <native code>
>         4: ?? (??:-1)
> <end of stack trace>
> Segmentation fault
> If to remove the "synchronized" modifier from the "test()" method declaration, the test
passes.
> On SUSE9 Linux em64t the crash does not depend on the "synchronized" modifier: it just
crashes with the wording:
> Segmentation fault
> (see HARMONY-2972)
> The attached test is the slightly modified smoke test stress.Stack.

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