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From "Mikhail Fursov (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-5434) [drlvm][jit] Crash in reliability.api.kernel.thread.ThreadSuspendResume.ThreadSuspendResume
Date Wed, 09 Apr 2008 11:37:24 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mikhail Fursov reassigned HARMONY-5434:
---------------------------------------

    Assignee: Mikhail Fursov

> [drlvm][jit] Crash in reliability.api.kernel.thread.ThreadSuspendResume.ThreadSuspendResume
> -------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-5434
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5434
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: Linux/x86_64 release
>            Reporter: Ilya Berezhniuk
>            Assignee: Mikhail Fursov
>
> I've got an intermittent  crash in ThreadSuspendResume test on 16-core Linux/x86_64 machine.
> It occurs every ~5-10 run for me.
> I've checked on 4-core machine - the same crash occured on 35th run.
> Crash occurs for me in address 0x00002aaabd473da0; it belongs to memory area "2aaaae568000-2aaabd56b000
---p", i.e. without read/write/execution rights.
> Investigation shows that this address is called from the code:
> ----------------
> 0x2aaabe473cb5: test   %al,(%rax)
> 0x2aaabe473cb7: add    %al,(%rax)
> 0x2aaabe473cb9: add    %al,(%rax)
> 0x2aaabe473cbb: nop    
> 0x2aaabe473cbc: callq  0x2aaabe473da0   <=================
> 0x2aaabe473cc1: add    $0x8,%rsp
> 0x2aaabe473cc8: mov    %eax,%r12d
> ----------------
> This code belongs to java.util.Random.nextDouble method.
> So the crash is probably because of race condition in compilation - or probably in something
else...

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