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From Salikh Zakirov <Salikh.Zaki...@Intel.com>
Subject Re: [testing] trying to run freemind with harmony
Date Thu, 17 Aug 2006 06:53:25 GMT
Iñigo wrote:
> C:\Archivos de programa\FreeMind\lib>java -Xmx1g -verbose:gc* -jar
> freemind.jar
> GC v4 M1-39 (2006-03-28)
> GC will incrementally slide compact at each GC, using algorithm = 2
> Chunks will be swept on allocation
> WARNING: final heap size is too large, reduced to 900 Mb
> java heap initial size 64 Mb, maximum size 900 Mb (38400000h), addresses
> range 2
> 0020000 - 58420000
> java.lang.OutOfMemoryError
>         <no stack trace available>

Iñigo, the log above doesn't have any collection messages, thus
no collection had taken place, and the OutOfMemoryError is most likely
caused by some other reason -- not the java heap shortage.

I have just grepped DRLVM and found about 25 places where OOM is thrown
explicitly in the VM.

Applying following patch and running with '-verbose:oom -verbose:gc*'
may shed some light on the reason of the problem.

-- >8 --
diff --git vm/vmcore/src/class_support/Class_File_Loader.cpp vm/vmcore/src/class_support/Class_File_Loader.cpp
index 0ec087f..259cc87 100644
--- vm/vmcore/src/class_support/Class_File_Loader.cpp
+++ vm/vmcore/src/class_support/Class_File_Loader.cpp
@@ -518,6 +518,7 @@ bool Field::parse(Class *clss, Const_Poo
         //std::stringstream ss;
         //ss << clss->name->bytes << ": could not create type descriptor
for field " << get_name();
         //jthrowable exn = exn_create("java/lang/OutOfMemoryError", ss.str().c_str());
+        INFO2("oom", "out of memory when creating type desc");
         exn_raise_only(VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return false;
     }
diff --git vm/vmcore/src/class_support/classloader.cpp vm/vmcore/src/class_support/classloader.cpp
index ea4e231..12e9ea1 100644
--- vm/vmcore/src/class_support/classloader.cpp
+++ vm/vmcore/src/class_support/classloader.cpp
@@ -1139,8 +1139,7 @@ Class* ClassLoader::AllocateAndReportIns
         if(new_java_lang_Class == NULL)
         {
             tmn_suspend_enable();
-            // couldn't allocate java.lang.Class instance for this class
-            // ppervov: TODO: throw OutOfMemoryError
+            INFO2("oom", "couldn't allocate java.lang.Class instance for this class");
             exn_raise_only(
                 VM_Global_State::loader_env->java_lang_OutOfMemoryError);
             return NULL;
diff --git vm/vmcore/src/exception/exceptions.cpp vm/vmcore/src/exception/exceptions.cpp
index f37a0af..996d9c4 100644
--- vm/vmcore/src/exception/exceptions.cpp
+++ vm/vmcore/src/exception/exceptions.cpp
@@ -153,6 +153,8 @@ static jthrowable create_exception(const
 
     if (!e) {
         tmn_suspend_enable();
+        INFO2("oom", "out of memory on creating exception object "
+                << exception_name);
         return VM_Global_State::loader_env->java_lang_OutOfMemoryError;
     }
 
@@ -180,6 +182,8 @@ static jthrowable create_exception(const
 
     if (!e) {
         tmn_suspend_enable();
+        INFO2("oom", "out of memory on creating exception object "
+                << exception_name);
         return VM_Global_State::loader_env->java_lang_OutOfMemoryError;
     }
 
@@ -216,6 +220,8 @@ static jthrowable create_exception(const
 
     if (!exc_obj) {
         tmn_suspend_enable();
+        INFO2("oom", "out of memory on creating exception object "
+                << exception_name);
         return VM_Global_State::loader_env->java_lang_OutOfMemoryError;
     }
 
@@ -230,6 +236,8 @@ static jthrowable create_exception(const
 
         if (!arg_obj) {
             tmn_suspend_enable();
+            INFO2("oom", "out of memory on creating exception object "
+                    << exception_name);
             return VM_Global_State::loader_env->java_lang_OutOfMemoryError;
         }
 
diff --git vm/vmcore/src/jit/jit_runtime_support.cpp vm/vmcore/src/jit/jit_runtime_support.cpp
index de30891..88d547c 100644
--- vm/vmcore/src/jit/jit_runtime_support.cpp
+++ vm/vmcore/src/jit/jit_runtime_support.cpp
@@ -1834,6 +1834,7 @@ void *vm_malloc_with_thread_pointer(
     assert(!tmn_is_suspend_enabled());
     void *result = gc_alloc(size,ah,tp);
     if (!result) {
+        INFO2("oom", "out of gc heap memory");
         exn_throw(VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return 0; // whether this return is reached or not is solved via is_unwindable state
     }
@@ -1863,6 +1864,7 @@ #endif //VM_STATS
         gc_alloc(c->instance_data_size, 
             c->allocation_handle, vm_get_gc_thread_local());
     if (!o) {
+        INFO2("oom", "out of gc heap memory");
         exn_throw(
             VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         //tmn_suspend_enable();
@@ -1887,6 +1889,7 @@ #endif //VM_STATS
         gc_alloc(vtable->allocated_size, 
             vtable->clss->allocation_handle, vm_get_gc_thread_local());
     if (!o) {
+        INFO2("oom", "out of gc heap memory");
         exn_throw(
             VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return NULL; // reached by interpreter and from JNI
@@ -1916,6 +1919,7 @@ class_alloc_new_object_and_run_construct
     obj->object = (ManagedObject*)
         gc_alloc(clss->instance_data_size, clss->allocation_handle, vm_get_gc_thread_local());
     if (!obj->object) {
+        INFO2("oom", "out of gc heap memory");
         exn_throw_only(
             VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return 0; // should never be reached
diff --git vm/vmcore/src/jni/jni.cpp vm/vmcore/src/jni/jni.cpp
index b730214..7a3d6fa 100644
--- vm/vmcore/src/jni/jni.cpp
+++ vm/vmcore/src/jni/jni.cpp
@@ -657,6 +657,7 @@ jobject JNICALL NewLocalRef(JNIEnv *env,
     if (NULL == h)
     {
         tmn_suspend_enable();
+        INFO2("oom", "out of native heap memory on creating local reference");
         exn_raise_only(
             (jthrowable)(((JNIEnv_Internal*)env)->vm->vm_env->java_lang_OutOfMemoryError));
         return NULL;
diff --git vm/vmcore/src/jni/jni_utils.cpp vm/vmcore/src/jni/jni_utils.cpp
index 185bb6c..1c1380c 100644
--- vm/vmcore/src/jni/jni_utils.cpp
+++ vm/vmcore/src/jni/jni_utils.cpp
@@ -251,6 +251,7 @@ char* ParameterTypesToMethodSignature (J
 
     if (NULL == sig) {
         //throw_exception_from_jni (env, "java/lang/OutOfMemoryError", name);
+        INFO2("oom", "out of memory on creating class signature");
         exn_raise_only(VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return (char *)0;
     }
diff --git vm/vmcore/src/object/vm_arrays.cpp vm/vmcore/src/object/vm_arrays.cpp
index 5f407fc..73acaf6 100644
--- vm/vmcore/src/object/vm_arrays.cpp
+++ vm/vmcore/src/object/vm_arrays.cpp
@@ -106,6 +106,7 @@ #ifdef VM_STATS
 #endif //VM_STATS
 
     if (NULL == object_array) {
+        INFO2("oom", "out of java heap memory on allocating array");
         exn_throw(
             VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return NULL; // may be reached on interpreter or when called from jni
@@ -152,6 +153,7 @@ #ifdef VM_STATS
 #endif //VM_STATS
 
     if (NULL == vector) {
+        INFO2("oom", "out of java heap memory on allocating primitive array");
         exn_throw(
             VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return 0; // may be reached when interpreter is used
@@ -227,6 +229,7 @@ #endif //VM_STATS
     assert( ! tmn_is_suspend_enabled());
     
     if (NULL == vector) {
+        INFO2("oom", "out of java heap memory on allocating array");
         exn_throw(
             VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return 0; // should never be reached
diff --git vm/vmcore/src/thread/object_generic.cpp vm/vmcore/src/thread/object_generic.cpp
index 11296e5..234c340 100644
--- vm/vmcore/src/thread/object_generic.cpp
+++ vm/vmcore/src/thread/object_generic.cpp
@@ -387,6 +387,7 @@ jobject object_clone(JNIEnv *jenv, jobje
     }
     if (result == NULL) {
         tmn_suspend_enable(); 
+        INFO2("oom", "out of java heap memory on cloning object");
         exn_throw(VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return NULL;
     }
diff --git vm/vmcore/src/util/vm_strings.cpp vm/vmcore/src/util/vm_strings.cpp
index f1fe7cb..7bf04b2 100644
--- vm/vmcore/src/util/vm_strings.cpp
+++ vm/vmcore/src/util/vm_strings.cpp
@@ -245,6 +245,7 @@ static void string_create(unsigned unico
     Vector_Handle array = gc_alloc(sz, clss->allocation_handle, vm_get_gc_thread_local());
     if (!array) { // OutOfMemory should be thrown
         *str = NULL;
+        INFO2("oom", "out of java heap memory on string creation");
         exn_throw(VM_Global_State::loader_env->java_lang_OutOfMemoryError);
         return;
     }


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