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From "Gregory Shimansky (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-1826) [drlvm][jvmti] Fix JVMTI support
Date Mon, 16 Oct 2006 21:18:39 GMT
    [ http://issues.apache.org/jira/browse/HARMONY-1826?page=comments#action_12442707 ] 
            
Gregory Shimansky commented on HARMONY-1826:
--------------------------------------------

It is an infinite recursion in SIGSEGV signal handler. The following code is repeated again
and again

#0  get_stack_addr ()
    at /home/gregory/work/Harmony/harmony/enhanced/drlvm/trunk/vm/vmcore/src/util/linux/signals_ia32.cpp:293
#1  0xb6df1669 in check_stack_overflow (info=0xbf66db2c, uc=0xbf66dbac)
    at /home/gregory/work/Harmony/harmony/enhanced/drlvm/trunk/vm/vmcore/src/util/linux/signals_ia32.cpp:391
#2  0xb6df218a in null_java_reference_handler (signum=11, info=0xbf66db2c, context=0xbf66dbac)
    at /home/gregory/work/Harmony/harmony/enhanced/drlvm/trunk/vm/vmcore/src/util/linux/signals_ia32.cpp:442
#3  <signal handler called>

Somehow return from the function get_stack_addr (after calling p_TLS_vmthread->stack_addr)
causes new SIGSEGV.

> [drlvm][jvmti] Fix JVMTI support
> --------------------------------
>
>                 Key: HARMONY-1826
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1826
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Pavel Rebriy
>         Assigned To: Geir Magnusson Jr
>         Attachments: Fix JVMTI support.patch, Fix JVMTI support.patch, Fix-JVMTI-support.patch
>
>
> The issue contains the following fixes:
> -	Fixed JVMTI initialization and execution mode
> -	Fixed JNIEnv usage for interpreter
> -	Removed jni_native_env from global namespace
> -	Fixed Single Step event disabling

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