Wed, 08 Dec 2010 17:50:49 -0800 Merge
iveresov [Wed, 08 Dec 2010 17:50:49 -0800] rev 7439
Merge
Wed, 08 Dec 2010 02:36:36 -0800 7005241: C1: SEGV in java.util.concurrent.LinkedTransferQueue.xfer() with compressed oops
iveresov [Wed, 08 Dec 2010 02:36:36 -0800] rev 7438
7005241: C1: SEGV in java.util.concurrent.LinkedTransferQueue.xfer() with compressed oops Summary: Implementation of the CAS primitive for x64 compressed oops was incorrect. It kills rscratch2 register (r11), which is allocatable in C1. Also, we don't need to restore cmpval as it's never used after that, so we need only one temporary register, which can be scratch1. Reviewed-by: kvn, never
Tue, 07 Dec 2010 11:00:02 -0800 7004925: CTW: assert(nbits == 32 || -(1 << nbits-1) <= x && x < ( 1 << nbits-1)) failed: value out of range
kvn [Tue, 07 Dec 2010 11:00:02 -0800] rev 7437
7004925: CTW: assert(nbits == 32 || -(1 << nbits-1) <= x && x < ( 1 << nbits-1)) failed: value out of range Summary: Set offset in register if it does not fit 13 bits. Reviewed-by: iveresov
Fri, 03 Dec 2010 15:53:57 -0800 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose [Fri, 03 Dec 2010 15:53:57 -0800] rev 7436
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute Reviewed-by: twisti
Fri, 03 Dec 2010 12:14:33 -0800 7004530: casx used for 32 bit cas after 7003554
never [Fri, 03 Dec 2010 12:14:33 -0800] rev 7435
7004530: casx used for 32 bit cas after 7003554 Reviewed-by: kvn, iveresov
Fri, 03 Dec 2010 06:14:37 -0800 7003798: test/compiler/6991596 fails with true != false
twisti [Fri, 03 Dec 2010 06:14:37 -0800] rev 7434
7003798: test/compiler/6991596 fails with true != false Summary: The test of 6991596 fails on SPARCV9. Reviewed-by: kvn, never, jrose
Fri, 03 Dec 2010 01:34:31 -0800 6961690: load oops from constant table on SPARC
twisti [Fri, 03 Dec 2010 01:34:31 -0800] rev 7433
6961690: load oops from constant table on SPARC Summary: oops should be loaded from the constant table of an nmethod instead of materializing them with a long code sequence. Reviewed-by: never, kvn
Thu, 02 Dec 2010 17:21:12 -0800 7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov [Thu, 02 Dec 2010 17:21:12 -0800] rev 7432
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer Summary: C1 with profiling doesn't check whether the MDO has been really allocated, which can silently fail if the perm gen is full. The solution is to check if the allocation failed and bailout out of inlining or compilation. Reviewed-by: kvn, never
Thu, 02 Dec 2010 01:02:55 -0800 6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti [Thu, 02 Dec 2010 01:02:55 -0800] rev 7431
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop Reviewed-by: kvn, never
Wed, 01 Dec 2010 15:47:52 -0800 6875026: CTW failure jdk6_18/hotspot/src/share/vm/c1/c1_LinearScan.cpp:5486
never [Wed, 01 Dec 2010 15:47:52 -0800] rev 7430
6875026: CTW failure jdk6_18/hotspot/src/share/vm/c1/c1_LinearScan.cpp:5486 Reviewed-by: kvn, iveresov
Wed, 01 Dec 2010 10:16:31 -0800 7002666: eclipse CDT projects crash with compressed oops
never [Wed, 01 Dec 2010 10:16:31 -0800] rev 7429
7002666: eclipse CDT projects crash with compressed oops Reviewed-by: kvn, twisti
Tue, 30 Nov 2010 23:14:25 -0800 Merge
iveresov [Tue, 30 Nov 2010 23:14:25 -0800] rev 7428
Merge
Tue, 30 Nov 2010 23:23:40 -0800 6985015: C1 needs to support compressed oops
iveresov [Tue, 30 Nov 2010 23:23:40 -0800] rev 7427
6985015: C1 needs to support compressed oops Summary: This change implements compressed oops for C1 for x64 and sparc. The changes are mostly on the codegen level, with a few exceptions when we do access things outside of the heap that are uncompressed from the IR. Compressed oops are now also enabled with tiered. Reviewed-by: twisti, kvn, never, phh
Tue, 30 Nov 2010 09:53:04 -0800 7001363: java/dyn/InvokeDynamic should not be a well-known class in the JVM
twisti [Tue, 30 Nov 2010 09:53:04 -0800] rev 7426
7001363: java/dyn/InvokeDynamic should not be a well-known class in the JVM Summary: Because of the removal of language support, the JDK 7 API for JSR 292 no longer includes a public class named java/dyn/InvokeDynamic. Reviewed-by: jrose, kvn
Wed, 15 Dec 2010 20:43:36 -0800 7007229: Fix warnings with VS2010 in compressedStream.cpp
iveresov [Wed, 15 Dec 2010 20:43:36 -0800] rev 7425
7007229: Fix warnings with VS2010 in compressedStream.cpp Summary: An interference between a fix for 6993125 and disabled optimization in compressedStream.cpp produces a warning with VS2010. Disable the warning for the code fragment for which the optimizations are disabled. Reviewed-by: kvn
Thu, 16 Dec 2010 20:35:33 -0800 Merge
trims [Thu, 16 Dec 2010 20:35:33 -0800] rev 7424
Merge
Fri, 10 Dec 2010 18:05:39 -0800 7006221: Bump the HS20 build number to 04
trims [Fri, 10 Dec 2010 18:05:39 -0800] rev 7423
7006221: Bump the HS20 build number to 04 Summary: Update the HS20 build number to 04 Reviewed-by: jcoomes
Fri, 10 Dec 2010 17:59:46 -0800 Merge
trims [Fri, 10 Dec 2010 17:59:46 -0800] rev 7422
Merge
Thu, 09 Dec 2010 21:47:58 -0800 Merge
ysr [Thu, 09 Dec 2010 21:47:58 -0800] rev 7421
Merge
Thu, 09 Dec 2010 09:22:57 -0800 7005259: CMS: BubbleUpRef asserts referent(obj)->is_oop() failed: Enqueued a bad referent
ysr [Thu, 09 Dec 2010 09:22:57 -0800] rev 7420
7005259: CMS: BubbleUpRef asserts referent(obj)->is_oop() failed: Enqueued a bad referent Summary: Relaxed the assert by allowing NULL referents when discovery may be concurrent. Reviewed-by: johnc, jcoomes
Tue, 07 Dec 2010 21:55:53 -0800 7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
ysr [Tue, 07 Dec 2010 21:55:53 -0800] rev 7419
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed()) 7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages. Reviewed-by: johnc, tonyp
Tue, 07 Dec 2010 16:44:34 -0800 Merge
johnc [Tue, 07 Dec 2010 16:44:34 -0800] rev 7418
Merge
Tue, 07 Dec 2010 16:18:45 -0800 6994628: G1: Test gc/gctests/FinalizeTest05 fails (one live object is finalized)
johnc [Tue, 07 Dec 2010 16:18:45 -0800] rev 7417
6994628: G1: Test gc/gctests/FinalizeTest05 fails (one live object is finalized) Summary: The Solaris Studio 12 update 1 C++ compiler was incorrectly re-ordering the reads of an object's mark word in oopDesc::forward_to_atomic(). This opened a small window where one thread could execute the successful CAS path even though another thread had already successfully forwarded the object. This could result in an object being copied twice. The code in oopDesc::forward_to_atomic() was changed to read the mark word once. Reviewed-by: ysr, tonyp
Tue, 07 Dec 2010 16:47:42 -0500 6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp [Tue, 07 Dec 2010 16:47:42 -0500] rev 7416
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen Summary: Allow the eden to the expanded up to a point when the GC locker is active. Reviewed-by: jwilhelm, johnc, ysr, jcoomes
Wed, 08 Dec 2010 04:50:35 -0800 7003789: PTRACE_GETREGS problems with SA on Linux.
kevinw [Wed, 08 Dec 2010 04:50:35 -0800] rev 7415
7003789: PTRACE_GETREGS problems with SA on Linux. Summary: ifdef definitions for PTRACE_GETREGS_REQ clarified Reviewed-by: dholmes
Tue, 07 Dec 2010 03:15:45 -0800 6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla [Tue, 07 Dec 2010 03:15:45 -0800] rev 7414
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars Summary: Tag allocated memory with a magic value and verify when releasing. Reviewed-by: phh, stefank
Mon, 06 Dec 2010 20:21:15 -0500 7003782: Update JVMTI version to 1.2 for jdk7
kamg [Mon, 06 Dec 2010 20:21:15 -0500] rev 7413
7003782: Update JVMTI version to 1.2 for jdk7 Summary: Update minor version to 1.2 for jdk7 Reviewed-by: phh, dcubed
Mon, 06 Dec 2010 15:37:00 -0500 Merge
coleenp [Mon, 06 Dec 2010 15:37:00 -0500] rev 7412
Merge
Sat, 04 Dec 2010 00:09:05 -0500 6704010: Internal Error (src/share/vm/interpreter/interpreterRuntime.cpp:1106)
coleenp [Sat, 04 Dec 2010 00:09:05 -0500] rev 7411
6704010: Internal Error (src/share/vm/interpreter/interpreterRuntime.cpp:1106) Summary: Fixed a race condition in the assertion caused by an unguarded, concurrent access to a GrowableArray object. Reviewed-by: coleenp, dholmes, dsamersoff Contributed-by: volker.simonis@gmail.com
Thu, 02 Dec 2010 05:45:54 -0800 6981484: Update development launcher
sla [Thu, 02 Dec 2010 05:45:54 -0800] rev 7410
6981484: Update development launcher Summary: Add new development launcher called hotspot(.exe) Reviewed-by: coleenp
Thu, 02 Dec 2010 20:01:47 +0100 7003786: sort Obj_Files before compiling
stefank [Thu, 02 Dec 2010 20:01:47 +0100] rev 7409
7003786: sort Obj_Files before compiling Summary: Reverted to old sort order on Linux and Solaris. Reviewed-by: tonyp, coleenp
Wed, 01 Dec 2010 15:04:06 +0100 7003125: precompiled.hpp is included when precompiled headers are not used
stefank [Wed, 01 Dec 2010 15:04:06 +0100] rev 7408
7003125: precompiled.hpp is included when precompiled headers are not used Summary: Added an ifndef DONT_USE_PRECOMPILED_HEADER to precompiled.hpp. Set up DONT_USE_PRECOMPILED_HEADER when compiling with Sun Studio or when the user specifies USE_PRECOMPILED_HEADER=0. Fixed broken include dependencies. Reviewed-by: coleenp, kvn
Thu, 02 Dec 2010 14:00:03 -0500 7004217: Remove IA64 workaround re-introduced with CR6953477
bobv [Thu, 02 Dec 2010 14:00:03 -0500] rev 7407
7004217: Remove IA64 workaround re-introduced with CR6953477 Summary: gcc bug worksaround for IA64 no longer needed Reviewed-by: andrew
Wed, 01 Dec 2010 18:32:50 -0500 Merge
coleenp [Wed, 01 Dec 2010 18:32:50 -0500] rev 7406
Merge
Wed, 01 Dec 2010 18:26:32 -0500 6348631: remove the use of the HPI library from Hotspot
ikrylov [Wed, 01 Dec 2010 18:26:32 -0500] rev 7405
6348631: remove the use of the HPI library from Hotspot Summary: move functions from hpi library to hotspot, communicate with licensees and open source community, check jdk for dependency, file CCC request Reviewed-by: coleenp, acorn, dsamersoff
Wed, 01 Dec 2010 03:12:35 -0800 7003456: ADLC files not correctly generated on Windows
brutisso [Wed, 01 Dec 2010 03:12:35 -0800] rev 7404
7003456: ADLC files not correctly generated on Windows Summary: Added target architecture parameters to make ADLC build properly Reviewed-by: never, stefank
Tue, 30 Nov 2010 18:10:20 -0800 Merge
ohair [Tue, 30 Nov 2010 18:10:20 -0800] rev 7403
Merge
Tue, 30 Nov 2010 18:07:18 -0800 6987107: Add variable to add to but not modify non-fcs version string
ohair [Tue, 30 Nov 2010 18:07:18 -0800] rev 7402
6987107: Add variable to add to but not modify non-fcs version string Reviewed-by: jcoomes, dholmes, andrew, kvn
Mon, 29 Nov 2010 15:43:36 -0500 6780143: hs203t003 hits SIGSEGV/EXCEPTION_ACCESS_VIOLATION with -XX:+UseCompressedOops
coleenp [Mon, 29 Nov 2010 15:43:36 -0500] rev 7401
6780143: hs203t003 hits SIGSEGV/EXCEPTION_ACCESS_VIOLATION with -XX:+UseCompressedOops Summary: Using r12 as temporary register around call_VM trashes heapbase becausecall_VM doesn't always return immediately to following code (eg forward_exception, popframe and early return support). Reviewed-by: never, kvn
Thu, 02 Dec 2010 13:20:39 -0500 7003860: G1: assert(_cur_alloc_region == NULL || !expect_null_cur_alloc_region) fails
tonyp [Thu, 02 Dec 2010 13:20:39 -0500] rev 7400
7003860: G1: assert(_cur_alloc_region == NULL || !expect_null_cur_alloc_region) fails Summary: Wrong assumption about expecting the current alloc region expected to be NULL in expand_and_allocate(). Reviewed-by: brutisso, ysr
Wed, 01 Dec 2010 17:34:02 -0800 6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc [Wed, 01 Dec 2010 17:34:02 -0800] rev 7399
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent Summary: Enable reference discovery during concurrent marking by setting the reference processor field of the concurrent marking closure. Keep reference objects on the discovered reference lists alive during incremental evacuation pauses until they are processed at the end of concurrent marking. Reviewed-by: ysr, tonyp
Tue, 24 Aug 2010 17:24:33 -0400 6974966: G1: unnecessary direct-to-old allocations
tonyp [Tue, 24 Aug 2010 17:24:33 -0400] rev 7398
6974966: G1: unnecessary direct-to-old allocations Summary: This change revamps the slow allocation path of G1. Improvements include the following: a) Allocations directly to old regions are now totally banned. G1 now only allows allocations out of young regions (with the only exception being humongous regions). b) The thread that allocates a new region (which is now guaranteed to be young) does not dirty all its cards. Each thread that successfully allocates out of a young region is now responsible for dirtying the cards that corresponding to the "block" that just got allocated. c) allocate_new_tlab() and mem_allocate() are now implemented differently and TLAB allocations are only done by allocate_new_tlab(). d) If a thread schedules an evacuation pause in order to satisfy an allocation request, it will perform the allocation at the end of the safepoint so that the thread that initiated the GC also gets "first pick" of any space made available by the GC. e) If a thread is unable to allocate a humongous object it will schedule an evacuation pause in case it reclaims enough regions so that the humongous allocation can be satisfied aftewards. f) The G1 policy is more careful to set the young list target length to be the survivor number +1. g) Lots of code tidy up, removal, refactoring to make future changes easier. Reviewed-by: johnc, ysr
Tue, 23 Nov 2010 13:22:55 -0800 6989984: Use standard include model for Hospot
stefank [Tue, 23 Nov 2010 13:22:55 -0800] rev 7397
6989984: Use standard include model for Hospot Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
Tue, 23 Nov 2010 15:01:43 -0500 Merge
coleenp [Tue, 23 Nov 2010 15:01:43 -0500] rev 7396
Merge
Tue, 23 Nov 2010 04:33:42 -0800 7002129: Zero and Shark fixes, 3rd
twisti [Tue, 23 Nov 2010 04:33:42 -0800] rev 7395
7002129: Zero and Shark fixes, 3rd Summary: 6970683 and 6953144 introduced changes that need to be implemented for Zero and Shark. Reviewed-by: twisti Contributed-by: Gary Benson <gbenson@redhat.com>
Fri, 19 Nov 2010 23:46:06 -0500 Merge
coleenp [Fri, 19 Nov 2010 23:46:06 -0500] rev 7394
Merge
Fri, 19 Nov 2010 03:41:50 -0800 6837842: JNI_CreateJavaVM crashes under impersonation
poonam [Fri, 19 Nov 2010 03:41:50 -0800] rev 7393
6837842: JNI_CreateJavaVM crashes under impersonation Reviewed-by: acorn, dholmes
Thu, 18 Nov 2010 14:37:46 -0500 6751923: JNDI wake up when clock_settime() is called
zgu [Thu, 18 Nov 2010 14:37:46 -0500] rev 7392
6751923: JNDI wake up when clock_settime() is called Summary: Ported Chris Phillips' patch from jdk5 to jdk7 Reviewed-by: chrisphi, coleenp
Fri, 19 Nov 2010 17:01:34 -0800 Merge
iveresov [Fri, 19 Nov 2010 17:01:34 -0800] rev 7391
Merge
Thu, 18 Nov 2010 09:52:48 -0800 7000491: assert(false) failed: should be optimized out in SharedRuntime::g1_wb_pre
kvn [Thu, 18 Nov 2010 09:52:48 -0800] rev 7390
7000491: assert(false) failed: should be optimized out in SharedRuntime::g1_wb_pre Summary: Wrong value type is used for NULL store when clearing the detail message of the preallocated exception object. Reviewed-by: never, iveresov
Tue, 16 Nov 2010 15:57:16 -0800 7000349: Tiered reacts incorrectly to C1 compilation failures
iveresov [Tue, 16 Nov 2010 15:57:16 -0800] rev 7389
7000349: Tiered reacts incorrectly to C1 compilation failures Summary: Fix policy reaction to C1 comilation failures, make C1 properly report errors. Reviewed-by: kvn
Fri, 12 Nov 2010 09:51:43 -0800 6999491: non-zero COOPs are used when they should not
kvn [Fri, 12 Nov 2010 09:51:43 -0800] rev 7388
6999491: non-zero COOPs are used when they should not Summary: HeapBaseMinAddress should be used only for a default heap size calculation. Reviewed-by: iveresov, jcoomes, dholmes
Fri, 19 Nov 2010 13:19:49 -0800 Merge
jmasa [Fri, 19 Nov 2010 13:19:49 -0800] rev 7387
Merge
Tue, 16 Nov 2010 16:12:28 -0800 Merge
johnc [Tue, 16 Nov 2010 16:12:28 -0800] rev 7386
Merge
Tue, 16 Nov 2010 14:07:33 -0800 6978187: G1: assert(ParallelGCThreads> 1 || n_yielded() == _hrrs->occupied()) strikes again
johnc [Tue, 16 Nov 2010 14:07:33 -0800] rev 7385
6978187: G1: assert(ParallelGCThreads> 1 || n_yielded() == _hrrs->occupied()) strikes again Summary: An evacuation failure while copying the roots caused an object, A, to be forwarded to itself. During the subsequent RSet updating a reference to A was processed causing the reference to be added to the RSet of A's heap region. As a result of adding to the remembered set we ran into the issue described in 6930581 - the sparse table expanded and the RSet scanning code walked the cards in one instance of RHashTable (_cur) while the occupied() counts the cards in the expanded table (_next). Reviewed-by: tonyp, iveresov
Tue, 16 Nov 2010 13:58:48 -0800 7000578: CMS: assert(SafepointSynchronize::is_at_safepoint()) failed: Else races are possible
ysr [Tue, 16 Nov 2010 13:58:48 -0800] rev 7384
7000578: CMS: assert(SafepointSynchronize::is_at_safepoint()) failed: Else races are possible Summary: Weakened assert in onj_is_alive() to allow its use at initialization time when is_at_safepoint() normally reports false; added some related asserts to check order of is_init_completed() after Universe::is_fully_initialized(). Reviewed-by: jcoomes
Wed, 17 Nov 2010 09:21:51 -0500 Merge
zgu [Wed, 17 Nov 2010 09:21:51 -0500] rev 7383
Merge
Fri, 12 Nov 2010 09:37:13 -0500 Merge
zgu [Fri, 12 Nov 2010 09:37:13 -0500] rev 7382
Merge
Fri, 05 Nov 2010 09:32:08 -0400 6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg [Fri, 05 Nov 2010 09:32:08 -0400] rev 7381
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0 Summary: Change property value to 1.<major_version> for major_version >= 7 Reviewed-by: dholmes, acorn
Wed, 27 Oct 2010 12:53:36 -0400 6865028: Illegal instructions passing verification prior to 'invokespecial Object.<init>'
kamg [Wed, 27 Oct 2010 12:53:36 -0400] rev 7380
6865028: Illegal instructions passing verification prior to 'invokespecial Object.<init>' Summary: Update verifier to conform to spec re: reference vs. 'Object' types Reviewed-by: dholmes, coleenp
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