7121623: G1: always be able to reliably calculate the length of a forwarded chunked array Summary: Store the "next chunk start index" in the length field of the to-space object, instead of the from-space object, so that we can always reliably read the size of all from-space objects. Reviewed-by: johnc, ysr, jmasa

7121496: G1: do the per-region evacuation failure handling work in parallel Summary: Parallelize the removal of self forwarding pointers etc. by wrapping in a HeapRegion closure, which is then wrapped inside an AbstractGangTask. Reviewed-by: tonyp, iveresov

Merge

7113006: G1: excessive ergo output when an evac failure happens Summary: Introduce a flag that is set when a heap expansion attempt during a GC fails so that we do not consantly attempt to expand the heap when it's going to fail anyway. This not only prevents the excessive ergo output (which is generated when a region allocation fails) but also avoids excessive and ultimately unsuccessful expansion attempts. Reviewed-by: jmasa, johnc

Merge

7064302: JDK7 build 147 crashed after testing my java 6-compiled web app Summary: Don't split CMove node if it's control edge is different from split region. Reviewed-by: never

7128352: assert(obj_node == obj) failed Summary: Compare uncasted object nodes. Reviewed-by: never

7125896: Eliminate nested locks Summary: Nested locks elimination done before lock nodes expansion by looking for outer locks of the same object. Reviewed-by: never, twisti

7110824: ctw/jarfiles/GUI3rdParty_jar/ob_mask_DateField crashes VM Summary: Change yank_if_dead() to recursive method to remove all dead inputs. Reviewed-by: never

Merge

Merge

7120511: Add diagnostic commands Reviewed-by: acorn, phh, dcubed, sspitsyn

7129240: backout fix for 7102776 until 7128770 is resolved Reviewed-by: phh, bobv, coleenp, dcubed Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

Merge

7119294: Two command line options cause JVM to crash Summary: Setup thread register in MacroAssembler::incr_allocated_bytes() on x64 Reviewed-by: kvn

7125879: assert(proj != NULL) failed: must be found Summary: Leave i_o attached to slow allocation call when there are no i_o users after the call. Reviewed-by: iveresov, twisti

Merge

7123954: Some CTW test crash with SIGSEGV Summary: Correct Allocate expansion code to preserve i_o when only slow call is generated. Reviewed-by: iveresov

7110832: ctw/.../org_apache_avalon_composition_util_StringHelper crashes the VM Summary: Distance is too large for one short branch in string_indexofC8(). Reviewed-by: iveresov

7123253: C1: in store check code, usage of registers may be incorrect Summary: fix usage of input register in assembly code for store check. Reviewed-by: never

7123108: C1: assert(if_state != NULL) failed: states do not match up Summary: In CEE, ensure if and common successor state are at the same inline level Reviewed-by: never

7121140: Allocation paths require explicit memory synchronization operations for RMO systems Summary: adds store store barrier after initialization of header and body of objects. Reviewed-by: never, kvn

7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions Summary: Moved sizeof(klassOopDesc), changed the return type to ByteSize and removed the _in_bytes suffix. Reviewed-by: never, bdelsart, coleenp, jrose

7121648: Use 3-operands SIMD instructions on x86 with AVX Summary: Use 3-operands SIMD instructions in C2 generated code for machines with AVX. Reviewed-by: never

7121073: secondary_super_cache memory slice has incorrect bounds in flatten_alias_type Reviewed-by: kvn

7116452: Add support for AVX instructions Summary: Added support for AVX extension to the x86 instruction set. Reviewed-by: never

7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler Summary: Exercise C2 more in tiered mode with Xcomp Reviewed-by: kvn, never

7114106: C1: assert(goto_state->is_same(sux_state)) failed: states must match now Summary: fix C1's CEE to take inlining into account when the stacks in states are compared. Reviewed-by: iveresov, never

7119730: Tiered: SIGSEGV in AdvancedThresholdPolicy::is_method_profiled(methodOop) Summary: Added handles for references to methods in select_task() Reviewed-by: twisti, kvn

Merge

Merge

7126480: Make JVM start time in milliseconds since the Java epoch available Summary: Expose existing Management::_begin_vm_creation_time via new accessor Management::begin_vm_creation_time(). Reviewed-by: acorn, dcubed

7125594: C-heap growth issue in ThreadService::find_deadlocks_at_safepoint Reviewed-by: sspitsyn, dcubed, mchung, dholmes

7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary Summary: Use JavaThread::jvmti_thread_state() instead of JvmtiThreadState::state_for(). Reviewed-by: coleenp, poonam, acorn

7126185: Clean up lasterror handling, add os::get_last_error() Summary: Add os::get_last_error(), replace getLastErrorString() by os::lasterror() in os_windows.cpp. Reviewed-by: kamg, dholmes Contributed-by: erik.gahlin@oracle.com

7125934: Add a fast unordered timestamp capability to Hotspot on x86/x64 Summary: Add rdtsc detection and inline generation. Reviewed-by: kamg, dholmes Contributed-by: karen.kinnear@oracle.com

Merge

Merge

7125503: Compiling collectedHeap.cpp fails with -Werror=int-to-pointer-cast with g++ 4.6.1 Summary: Used uintptr_t and void* for all the casts and checks in test_is_in. Reviewed-by: tonyp, jmasa

Merge

7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type. Summary: Change instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count to u2 type. Reviewed-by: never, bdelsart, dholmes Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

7116216: StackOverflow GC crash Summary: GC crash for explicit stack overflow checks after a C2I transition. Reviewed-by: coleenp, never Contributed-by: yang02.wang@sap.com, bertrand.delsart@oracle.com

Merge

Merge

7050298: ARM: SIGSEGV in JNIHandleBlock::allocate_handle Summary: missing release barrier in Monitor::IUnlock Reviewed-by: dholmes, dice

7117052: instanceKlass::_init_state can be u1 type Summary: Change instanceKlass::_init_state field to u1 type. Reviewed-by: bdelsart, coleenp, dholmes, phh, never Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

Merge

7102776: Pack instanceKlass boolean fields into single u1 field Summary: Reduce class runtime memory usage by packing 4 instanceKlass boolean fields into single u1 field. Save 4-byte for each loaded class. Reviewed-by: dholmes, bobv, phh, twisti, never, coleenp Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

Merge

7125516: G1: ~ConcurrentMark() frees incorrectly Summary: Replaced the code with a ShouldNotReachHere Reviewed-by: tonyp, jmasa

7124829: NUMA: memory leak on Linux with large pages Summary: In os::free_memory() use mmap with the same attributes as for the heap space Reviewed-by: kvn Contributed-by: Aleksey Ignatenko <aleksey.v.ignatenko@intel.com>

Merge

Merge

7122253: Instrumentation.retransformClasses() leaks class bytes Summary: Change ClassFileParser::parseClassFile() to use the instanceKlass:_cached_class_file_bytes field to avoid leaking the cache. Reviewed-by: coleenp, acorn, poonam

Merge

7113021: G1: automatically enable young gen size auto-tuning when -Xms==-Xmx Summary: Use a percentage of -Xms as min and another percentage of -Xmx as max for the young gen size Reviewed-by: tonyp, johnc

7121618: Change type of number of GC workers to unsigned int. Summary: Change variables representing the number of GC workers to uint from int and size_t. Change the parameter in work(int i) to work(uint worker_id). Reviewed-by: brutisso, tonyp

7119027: G1: use atomics to update RS length / predict time of inc CSet Summary: Make sure that the updates to the RS length and inc CSet predicted time are updated in an MT-safe way. Reviewed-by: brutisso, iveresov

Merge

7123165: G1: output during parallel verification can get messed up Summary: Serialize the worker threads that are generating output during parallel heap verification to make sure the output is consistent. Reviewed-by: brutisso, johnc, jmasa