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From "Alexey Varlamov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-3600) [drlvm] Cumulative fix for crash handler on Linux
Date Tue, 10 Apr 2007 05:26:32 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-3600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12487687
] 

Alexey Varlamov commented on HARMONY-3600:
------------------------------------------

Good job Ilya! 
Few suggestion to address further: 
 - dead code around addr2line in signals_em64t.cpp signals_ia32.cpp, to remove?
 - unused gdb crash_handler (vm\vmcore\src\util\linux\crash_handler.cpp ) ??
 - lot of duplication between signals_em64t.cpp signals_ia32.cpp signals_ipf.cpp, would be
nice to merge...

> [drlvm] Cumulative fix for crash handler on Linux
> -------------------------------------------------
>
>                 Key: HARMONY-3600
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3600
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: Linux
>            Reporter: Ilya Berezhniuk
>         Assigned To: Gregory Shimansky
>         Attachments: crash_handler.diff
>
>
> There were several bugs in crash handling on Linux:
> 1) crash handler intermittently waits for "return" to continue printing (because of pipe
problems);
> 2) crash handler reports file/line information for shared objects only, not for 'java'
executable (because of incorrect addr2line usage);
> 3) crash handler uses incorrect width to print addresses on em64t;
> 4) there is a cause for recursive crash handling, because default signal action is set
after crash handler invocation.
> Suggested patch fixes these problems.

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