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From "Ilya Berezhniuk (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5167) [drlvm][shutdown] Some regression tests intermittently fail on shutdown in debug mode on win32
Date Sat, 01 Dec 2007 23:51:43 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12547537

Ilya Berezhniuk commented on HARMONY-5167:

I've tested the small test attached on several Harmony revisions.

This bug was not reproduced on r498001 (end of Jan'2007) build in 500 runs.

On r543133 (end of May'2007) build the bug is reproducible, although more rarely then now
(1 time in 100-300 runs instead of 1 in 20-30 runs).
The same low frequency is for r571484 (end of Aug'2007).
Looks like this bug is not actually a regression since M3.

Anyway, I'm looking for commit which made this bug more visible.

> [drlvm][shutdown] Some regression tests intermittently fail on shutdown in debug mode
on win32
> ----------------------------------------------------------------------------------------------
>                 Key: HARMONY-5167
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5167
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: Windows ia32 debug
>            Reporter: Gregory Shimansky
>            Assignee: Gregory Shimansky
>            Priority: Minor
>         Attachments: H-5167.patch, TestHeap.class, TestHeap.java
> I previously thought that the bug is in HARMONY-5105, but CC shows that after the patch
has been committed, failures still continue. Most often failures are seen on verifier regression
test H3225. Win32 runtime checks C heap on shutdown in function exit, and this check fails.
It seems like a C heap memory corruption somewhere in VM.

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