Thanks. *HARMONY-3860* <https://issues.apache.org/jira/browse/HARMONY-3860> was created for that. One small issue is that GCv5 supports heap iteration which GCv4.1 does not.
On 5/14/07, Gregory Shimansky <[EMAIL PROTECTED]> wrote:
chunrong lai wrote: > I just checked the IterateOverHeap/IterateInstances issue. I found the > problem is not in GCv5 but in the tag setting of the JVMTI environment. > In my experiments there is assertion failure in > assert(global_ti_env->tags) at vm_iterate_object(), which probably means no > tag setting before gc_iterate_heap(). > > GCv4.1 has not this problem because it initializes the > jvmti_heap_iteration as false, which means the heap is not iterated, so no > vm_iterate_ovject() is called, even if JVMTI environment askes it to do. > Instead I did not see GCv5 has internal problem in gc_iterate_heap(). > > So I am also looking for your suggestion for below options (1) Set > jvmti_heap_iteration of GCv5 with false as GCv4.1. (2) Discard the > assertion > in vm_iterate_object. (3) Rewrite the test case to set tag before > gc_iterate_heap(). Hello Chunrong, could you please file a JIRA on this problem for tracking purposes? It seems that there is a bug in VM which cannot correctly handle GC that don't support heap iteration. We shouldn't forget to fix it. > On 5/8/07, Xiao-Feng Li <[EMAIL PROTECTED]> wrote: >> >> They might be caused by recent switch of the GC to GCv5. Will check, >> thanks. >> >> xiaofeng >> >> On 5/7/07, Petrashkova, Vera Y <[EMAIL PROTECTED]> wrote: >> > 3 tests from DRLVM Validation test suite >> > (http://issues.apache.org/jira/browse/HARMONY-3206) failed on DRLVM >> > r535615 Windows2003 ia32 while passed since r531398. >> > >> > >> > >> > 1) The following jvmti tests >> > >> > >> > >> vm.jvmti.funcs.IterateInstances.IterateInstances0101.IterateInstances010 >> > 1 >> > >> > >> > vm.jvmti.funcs.IterateOverHeap.IterateOverHeap0101.IterateOverHeap0101 >> > >> > >> > >> > failed because VM crashes on jvmti methods >> > >> > >> > >> > IterateOverHeap(jvmtiEnv* env, >> > jvmtiHeapObjectFilter object_filter, >> > jvmtiHeapObjectCallback heap_object_callback, >> > >> > void* user_data) >> > >> > IterateOverInstancesOfClass(jvmtiEnv* env, >> > jclass klass, >> > jvmtiHeapObjectFilter object_filter, >> > jvmtiHeapObjectCallback heap_object_callback, >> > >> > void* user_data) >> > >> > >> > >> > when parameter object_filter equals to JVMTI_HEAP_OBJECT_UNTAGGED or >> > JVMTI_HEAP_OBJECT_EITHER >> > >> > >> > >> > VM works correctly when object_filter equals to >> > JVMTI_HEAP_OBJECT_TAGGED. >> > >> > >> > >> > 2) VM also crashes on the following test which creates large array >> > >> > >> > >> vm.jvms.instructions.reftypes.anewarray.anewarray09.anewarray0901.anewar >> > ray0901 >> > >> > >> > >> > It is occurred on Windows 2003 but this test passes on Windows XP. >> > >> > >> > >> > These failures may be intermittent because the listed tests failed on >> > DRLVM r531398 but they passed on the next builds till r535615. >> > >> > >> > >> > >> > >> > >> > >> > Thank you, >> > >> > Vera Petrashkova >> > >> > >> > >> > >> > >> > >> >> >> -- >> http://xiao-feng.blogspot.com >> > -- Gregory
