OpenJDK Hotspot

The HotSpot code base has been worked on by dozens of people, over the course of 10 years, so far. (That's good and bad.) It's big. There are nearly 1500 C/C++ header and source files, comprising almost 250,000 lines of code. In addition to the expected class loader, bytecode interpreter, and supporting runtime routines, you get two runtime compilers from bytecode to native instructions, 3 (or so) garbage collectors, and a set of high-performance runtime libraries for synchronization, etc.
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Topics (24814)
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RFR: 8205559: Remove IN_CONCURRENT_ROOT Access decorator by Kim Barrett
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by Kim Barrett
OpenJDK Hotspot Virtual Machine
(11) RFR (S) JDK-8205509: assert(_name_and_id != 0LL) failed: encountered a class loader null name and id by Lois Foltan
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by Thomas Stüfe-2
OpenJDK Hotspot Runtime System
Re: RFR: 8186780: clang-4.0 fastdebug assertion failure in os_linux_x86:os::verify_stack_alignment() by David Holmes
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by Martin Buchholz-3
OpenJDK Hotspot Runtime System
RFR(XS) : 8177899 : Tests fail due to code cache exhaustion on machines with many cores by Igor Ignatev
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by Vladimir Kozlov
OpenJDK Hotspot Compiler Development List
RFR 8202615: Remove NativeMonitorSpinLimit, NativeMonitorFlags and NativeMonitorTimeout experimental flags by patricio.chilano.mat...
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by Kim Barrett
OpenJDK Hotspot Runtime System
RFR (M) JDK-8169559: Add class loader names to relevant VM messages by Lois Foltan
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by Lois Foltan
OpenJDK Hotspot Virtual Machine
RFR(S) JDK-8205528: Base64 Encode Algorithm using AVX512 Instructions by Kamath, Smita
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by Paul Sandoz
OpenJDK Hotspot Compiler Development List
RFR(S) 8204209: [Graal] Compilation fails during nmethod printing with "assert(bci == 0 || 0 <= bci && bci < code_size()) failed: illegal bci" by Igor Veresov
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by Igor Veresov
OpenJDK Hotspot Compiler Development List
RFR(M): 8205207: Port Graal unit tests under jtreg by Ekaterina Pavlova
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by Ekaterina Pavlova
OpenJDK Hotspot Compiler Development List
[11] RFR(S) 8205400: [Graal] compiler/jvmci/compilerToVM/DisassembleCodeBlobTest.java fails with can't be enqueued for compilation on level 4 by Vladimir Kozlov
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by Vladimir Kozlov
OpenJDK Hotspot Compiler Development List
RFR 8205422: assert(false) failed: Bad verification_type_info by Harold David Seigel
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by Harold David Seigel
OpenJDK Hotspot Runtime System
Re: RFR(s): jcmd VM.classloaders should fold similar loaders by Thomas Stüfe-2
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by Thomas Stüfe-2
OpenJDK Hotspot Runtime System
RFR(XS) : 8155192 : [TESTBUG] SHA tests assumes that x86 does not have SHA intrinsics by Igor Ignatev
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by Gustavo Romero
OpenJDK Hotspot Compiler Development List
RFR(M): 8204908: NVDIMM for POGC and G1GC - ReserveSpace.cpp changes are mostly eliminated/no collector specific code. by Awasthi, Vinay K
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by Thomas Stüfe-2
OpenJDK Hotspot Garbage Collection
8205118: CodeStrings::copy() assertion caused by -XX:+VerifyOops -XX:+PrintStubCode by Andrew Haley
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by Andrew Haley
OpenJDK Hotspot Virtual Machine
RFR(S): JDK-8191339: [JVMCI] BigInteger compiler intrinsics on Graal. by Patric Hedlin
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by Vladimir Kozlov
OpenJDK Hotspot Virtual Machine
RFR (8u): JDK-8146115: Improve docker container detection and resource configuration usage by Poonam Parhar
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by Bob Vandette
OpenJDK Hotspot Virtual Machine
RFR(M): 8204524: Unnecessary memory barriers in G1ParScanThreadState::copy_to_survivor_space by Michihiro Horie
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by Doerr, Martin
OpenJDK Hotspot Garbage Collection
RFR: JDK-8205523: Explicit barriers for interpreter by Roman Kennke-6
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by Roman Kennke-6
OpenJDK Hotspot Virtual Machine
RFR: 8204331: AArch64: fix CAS not embedded in normal graph error by Andrew Dinn
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by Andrew Haley
OpenJDK Hotspot Virtual Machine
RFR: 8204088: Dynamic Max Memory Limit by Rodrigo Bruno
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by Thomas Schatzl
OpenJDK Hotspot Garbage Collection
RFR: 8204289: AARCH64: enable math intrinsics usage in interpreter and C1 by Dmitrij Pochepko-2
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by Dmitrij Pochepko-2
OpenJDK Hotspot Compiler Development List
RFR (S): 8198909: [Graal] compiler/codecache/stress/UnexpectedDeoptimizationTest.java crashed with SIGSEGV by Tom Rodriguez-2
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by Tom Rodriguez-2
OpenJDK Hotspot Garbage Collection
RFR(XXS) : 8172854 : [TESTBUG] Exclude runtime/ReservedStack/ReservedStackTest.java from being run with DeoptimizeALot option by Igor Ignatev
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by Vladimir Kozlov
OpenJDK Hotspot Compiler Development List
RFR (XS): Obsolete support for commercial features by Mikael Vidstedt-3
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by Mikael Vidstedt-3
OpenJDK Hotspot Virtual Machine
RFR(XXS) : 8205490 : update ProblemList-graal by Igor Ignatev
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by Vladimir Kozlov
OpenJDK Hotspot Compiler Development List
RFR 8195650 Method references to VarHandle accessors by Paul Sandoz
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by Mandy Chung
OpenJDK Hotspot Virtual Machine
RFR: 8204540: Automatic oop closure devirtualization by Stefan Karlsson
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by Kim Barrett
OpenJDK Hotspot Virtual Machine
RFR(S) : 8185927 : create regression test for 8062950 by Igor Ignatev
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by Vladimir Kozlov
OpenJDK Hotspot Compiler Development List
RFR(S): 8205107: assert(c->Opcode() == Op_SafePoint) failed: broken outer loop by Nils Eliasson
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by Vladimir Kozlov
OpenJDK Hotspot Compiler Development List
RFR: 8205459: Rename Access API flag decorators by Kim Barrett
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by Per Liden
OpenJDK Hotspot Virtual Machine
RFR: 8189105: AARCH64: create intrinsic for sin and cos by Dmitrij Pochepko-2
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by Dmitrij Pochepko-2
OpenJDK Hotspot Compiler Development List
RFR (trivial) 8205175: Deprecate UnlinkSymbolsALot debugging option. by coleen.phillimore
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by coleen.phillimore
OpenJDK Hotspot Runtime System
RFR(S): 8205474 - AARCH64: wrong zr encoding for ccmp instruction by Dmitrij Pochepko-2
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by Dmitrij Pochepko-2
OpenJDK Hotspot Compiler Development List
RFR: 8205405: ZGC: Decouple JFR type registration by Per Liden
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by Per Liden
OpenJDK Hotspot Garbage Collection
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