Loaded 718 changesets from repos/jdk7u-jdk7u/jaxws Loaded 1715 changesets from repos/jdk8u-jdk8u/nashorn Loaded 895 changesets from repos/icedtea7-forest-2.6/jaxp Loaded 1410 changesets from repos/shenandoah-jdk8/jaxp Loaded 1440 changesets from repos/jdk8u-jdk8u Loaded 1530 changesets from repos/icedtea7-forest-2.6/langtools Loaded 817 changesets from repos/icedtea7-forest-2.6/jaxws Loaded 780 changesets from repos/jdk7u-jdk7u/corba Loaded 1879 changesets from repos/shenandoah-jdk8/nashorn Loaded 871 changesets from repos/icedtea7-forest-2.6/corba Loaded 868 changesets from repos/icedtea7-forest-2.6 Loaded 4942 changesets from repos/icedtea7-forest-2.6/hotspot Loaded 6995 changesets from repos/jdk7u-jdk7u/jdk Loaded 10919 changesets from repos/jdk8u-jdk8u/jdk Loaded 1151 changesets from repos/jdk8u-jdk8u/corba Loaded 1440 changesets from repos/jdk7u-jdk7u/langtools Loaded 800 changesets from repos/jdk7u-jdk7u/jaxp Loaded 759 changesets from repos/jdk7u-jdk7u Loaded 1606 changesets from repos/shenandoah-jdk8 Loaded 11602 changesets from repos/shenandoah-jdk8/jdk Loaded 4186 changesets from repos/jdk7u-jdk7u/hotspot Loaded 1323 changesets from repos/shenandoah-jdk8/corba Loaded 2730 changesets from repos/jdk8u-jdk8u/langtools Loaded 11602 changesets from repos/aarch64-port-jdk8u-shenandoah/jdk Loaded 1263 changesets from repos/shenandoah-jdk8/jaxws Loaded 2904 changesets from repos/shenandoah-jdk8/langtools Loaded 1606 changesets from repos/aarch64-port-jdk8u-shenandoah Loaded 2904 changesets from repos/aarch64-port-jdk8u-shenandoah/langtools Loaded 1879 changesets from repos/aarch64-port-jdk8u-shenandoah/nashorn Loaded 8503 changesets from repos/shenandoah-jdk8/hotspot Loaded 1263 changesets from repos/aarch64-port-jdk8u-shenandoah/jaxws Loaded 1323 changesets from repos/aarch64-port-jdk8u-shenandoah/corba Loaded 1097 changesets from repos/jdk8u-jdk8u/jaxws Loaded 1410 changesets from repos/aarch64-port-jdk8u-shenandoah/jaxp Loaded 1220 changesets from repos/jdk8u-jdk8u/jaxp Loaded 7790 changesets from repos/icedtea7-forest-2.6/jdk Loaded 6379 changesets from repos/jdk8u-jdk8u/hotspot Loaded 8502 changesets from repos/aarch64-port-jdk8u-shenandoah/hotspot Loaded 38526 changesets from repos/jdk-updates-jdk11u Loaded 39615 changesets from repos/shenandoah-jdk11 Loaded 43635 changesets from repos/jdk-jdk HG DB has 242797 records. LABEL REPORT: gc-shenandoah ==================================================================================================== This report shows bugs with the given label, along with their backporting status. Report generated: Mon Jan 27 01:21:26 CET 2020 Minimal actionable level to display: WAITING For actionable issues, search for these strings: "MISSING" "APPROVED" "WARNING" For lingering issues, search for these strings: "WAITING for patch to bake a little" JIRA Query: labels = gc-shenandoah AND (status in (Closed, Resolved)) AND (resolution not in ("Won't Fix", Duplicate, "Cannot Reproduce", "Not an Issue", Withdrawn, Other)) AND type != Backport Acquiring pages (298 total): ...... done Loading issues (298 total): ...... done Resolving issues (298 total): ..... done ---------------------------------------------------------------------------------------------------- JDK-8226241: Shenandoah: Concurrent class unloading Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8226241 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8226241, N/A, N/A WARNING: The change is missing in all open repos. Backports and Forwardports: 14: MISSING 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: Not affected Release Notes: JDK-8237010: Shenandoah supports concurrent class unloading As of JDK 14, Shenandoah GC supports concurrent class unloading. It improves the prior stop-the-world implementation to be fully concurrent, which minimizes the class unloading work done during Final Mark pause. This also enables class unloading for the regular GC cycles by default, in addition to already enabled class unloading during degenerated and full GC cycles. This relies heavily on runtime facilities introduced in JDK 12, and therefore not available in 11-shenandoah and 8-shenandoah. ---------------------------------------------------------------------------------------------------- JDK-8228665: Shenandoah: Implementation of Concurrent nmethod evacuation Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8228665 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: N/A: JDK-8228665, N/A, N/A WARNING: The change is missing in all open repos. Backports and Forwardports: None. Shenandoah Backports: 11: Not affected 8: Not affected ---------------------------------------------------------------------------------------------------- JDK-8231366: Shenandoah: Shenandoah String Dedup thread is not properly initialized Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231366 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P3 Components: hotspot/gc Original Fix: 8-shenandoah: JDK-8231366, N/A, N/A WARNING: Affected versions is not set. WARNING: The change is missing in all open repos. Backports and Forwardports: None. Shenandoah Backports: 11: Not affected 8: https://hg.openjdk.java.net/shenandoah/jdk8/hotspot/rev/9273f5dfd66a AArch64 Backports: 8: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/hotspot/rev/9273f5dfd66a ---------------------------------------------------------------------------------------------------- JDK-8237182: Update copyright header for shenandoah and epsilon files Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237182 Reporter: Mikael Vidstedt Assignee: Mikael Vidstedt Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8237182, https://hg.openjdk.java.net/jdk/jdk/rev/14c78683c9f0, 12 day(s) ago Backports and Forwardports: 14: MISSING 11: MISSING 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8220714: C2 Compilation failure when accessing off-heap memory using Unsafe Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8220714 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P3 Components: hotspot/compiler Original Fix: 13: JDK-8220714, http://hg.openjdk.java.net/jdk/jdk/rev/eed9f74eab87, 312 day(s) ago Backports and Forwardports: 11: 11.0.4, JDK-8221829, http://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/4b1ebc747064, 300 day(s) ago 8: MISSING Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/4b1ebc747064 8: https://hg.openjdk.java.net/shenandoah/jdk8/hotspot/rev/eb25f2203b39 ---------------------------------------------------------------------------------------------------- JDK-8234508: VM_HeapWalkOperation::iterate_over_object reads non-strong fields with an on-strong load barrier Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8234508 Reporter: Stefan Karlsson Assignee: Stefan Karlsson Priority: P2 Components: hotspot/gc Original Fix: 14: JDK-8234508, https://hg.openjdk.java.net/jdk/jdk/rev/2aaa8bcb90a9, 49 day(s) ago Backports and Forwardports: 11: MISSING 8: Not affected Shenandoah Backports: 11: Not affected 8: Not affected ---------------------------------------------------------------------------------------------------- JDK-8236179: C1 register allocation failure with T_ADDRESS Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8236179 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P3 Components: hotspot/compiler Original Fix: 15: JDK-8236179, https://hg.openjdk.java.net/jdk/jdk/rev/59ddac265649, 38 day(s) ago Backports and Forwardports: 14: 14, JDK-8236818, https://hg.openjdk.java.net/jdk/jdk14/rev/b02019841086, 19 day(s) ago 11: 11.0.7, JDK-8237355, https://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/a8689dd18f8b, 11 day(s) ago 8: MISSING Shenandoah Backports: 11: Not affected 8: Not affected ---------------------------------------------------------------------------------------------------- JDK-8236815: Shenandoah: Fix weak roots in final Traversal GC phase Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8236815 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P2 Components: hotspot/gc Original Fix: 15: JDK-8236815, https://hg.openjdk.java.net/jdk/jdk/rev/b997e5b9479b, 19 day(s) ago Backports and Forwardports: 14: MISSING 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8236851: Shenandoah: More details in Traversal GC event messages Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8236851 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8236851, https://hg.openjdk.java.net/jdk/jdk/rev/6298998003aa, 17 day(s) ago Backports and Forwardports: 14: MISSING 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8218734: SA: Incorrect and raw loads of OopHandles Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8218734 Reporter: Stefan Karlsson Assignee: Stefan Karlsson Priority: P4 Components: hotspot/svc-agent Original Fix: 13: JDK-8218734, http://hg.openjdk.java.net/jdk/jdk/rev/935d31867930, 342 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232008: Shenandoah: C1 load barrier does not match interpreter version Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232008 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8232008, https://hg.openjdk.java.net/jdk/jdk/rev/199ee1bf9b3b, 101 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232009: Shenandoah: C2 load barrier does not match interpreter version Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232009 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8232009, https://hg.openjdk.java.net/jdk/jdk/rev/294fe0fef773, 101 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232010: Shenandoah: implement self-fixing native barrier Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232010 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8232010, https://hg.openjdk.java.net/jdk/jdk/rev/3f35a9efd7de, 101 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232674: Fix build and rename ShenandoahBarrierSet::oop_load_from_native_barrier Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232674 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P1 Components: hotspot/gc Original Fix: 14: JDK-8232674, https://hg.openjdk.java.net/jdk/jdk/rev/ff3eab78554f, 98 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232712: Shenandoah: SIGBUS in load_reference_barrier_native Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232712 Reporter: Aleksey Shipilev Assignee: Zhengyu Gu Priority: P1 Components: hotspot/gc Original Fix: 14: JDK-8232712, https://hg.openjdk.java.net/jdk/jdk/rev/190ec5fae2af, 98 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233401: Shenandoah: Refactor/cleanup Shenandoah load barrier code Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233401 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8233401, https://hg.openjdk.java.net/jdk/jdk/rev/83810b7d12e7, 82 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233337: Shenandoah: Cleanup AArch64 SBSA::load_reference_barrier_not_null() Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233337 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8233337, https://hg.openjdk.java.net/jdk/jdk/rev/66b1db608c12, 80 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233339: Shenandoah: Centralize load barrier decisions into ShenandoahBarrierSet Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233339 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8233339, https://hg.openjdk.java.net/jdk/jdk/rev/5606867a5e6e, 80 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233850: Shenandoah: Shenandoah thread count ergonomics should be container aware Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233850 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8233850, https://hg.openjdk.java.net/jdk/jdk/rev/f92ef5d182b5, 80 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8235598: Shenandoah: Update copyrights Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8235598 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8235598, https://hg.openjdk.java.net/jdk/jdk/rev/a88e99d92248, 48 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8235669: G1: Stack walking API can expose AS_NO_KEEPALIVE oops Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8235669 Reporter: Erik Österlund Assignee: Erik Österlund Priority: P2 Components: hotspot/gc Original Fix: 14: JDK-8235669, https://hg.openjdk.java.net/jdk/jdk14/rev/fd1fe6f7daab, 17 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8237038: Shenandoah: Reduce thread pool size in TestEvilSyncBug.java test Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237038 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8237038, https://hg.openjdk.java.net/jdk/jdk14/rev/b2054fde257e, 14 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8237369: Shenandoah: failed vmTestbase/nsk/jvmti/AttachOnDemand/attach021/TestDescription.java test Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237369 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P2 Components: hotspot/gc Original Fix: 14: JDK-8237369, https://hg.openjdk.java.net/jdk/jdk14/rev/5bc878966264, 11 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8237392: Shenandoah: Remove unreliable assertion Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237392 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8237392, https://hg.openjdk.java.net/jdk/jdk14/rev/5dae0969decc, 11 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8237543: Shenandoah: More asserts around code roots Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237543 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8237543, https://hg.openjdk.java.net/jdk/jdk/rev/5e65bea99d1f, 7 day(s) ago Backports and Forwardports: 14: WAITING for patch to bake a little: 3 days more 11: WAITING for patch to bake a little: 3 days more 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8237570: Shenandoah: cleanup uses of allocation/free threshold in static heuristics Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237570 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8237570, https://hg.openjdk.java.net/jdk/jdk/rev/146949f377a2, 6 day(s) ago Backports and Forwardports: 14: WAITING for patch to bake a little: 4 days more 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8237586: Shenandoah: provide option to disable periodic GC Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237586 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8237586, https://hg.openjdk.java.net/jdk/jdk/rev/7c606c26d02a, 5 day(s) ago Backports and Forwardports: 14: WAITING for patch to bake a little: 5 days more 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8221629: Shenandoah: Cleanup class unloading logic Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8221629 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8221629, http://hg.openjdk.java.net/jdk/jdk/rev/8cd2af66ac7c, 304 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/3a1e23d1eadf 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8221751: Shenandoah: Improve SATB enqueueing Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8221751 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8221751, http://hg.openjdk.java.net/jdk/jdk/rev/cdc3bb0983a6, 300 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/0d5e66cf201a 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8221848: Shenandoah: ArrayCopy post-barrier improvements Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8221848 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8221848, http://hg.openjdk.java.net/jdk/jdk/rev/13c02cc7a6e5, 298 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/eb8efa1f5c90 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8223184: Shenandoah: Missing roots in SRP::process_all_roots_slow Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8223184 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8223184, http://hg.openjdk.java.net/jdk/jdk/rev/5ddea9d48649, 271 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/dc0680128225 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8222992: Shenandoah: Pre-evacuate all roots Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8222992 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8222992, http://hg.openjdk.java.net/jdk/jdk/rev/df2b3565f343, 270 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/b418579b9396 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8223258: Shenandoah: SRP::process_all_roots_slow processes JvmtiExport weak oops twice Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8223258 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8223258, http://hg.openjdk.java.net/jdk/jdk/rev/764addae3e37, 270 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/f78d97ff6598 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8223449: Unprotected UseCompressedOops block in gc/shenandoah/shenandoahBarrierSetC1_x86.cpp Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8223449 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8223449, http://hg.openjdk.java.net/jdk/jdk/rev/f7b4471933d3, 265 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/521656ec2411 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8223570: Shenandoah needs to acquire lock before CLDG::clear_claimed_marks Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8223570 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P1 Components: hotspot/gc Original Fix: 13: JDK-8223570, http://hg.openjdk.java.net/jdk/jdk/rev/5e5535d25467, 264 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8223215: Shenandoah: Support verifying subset of roots Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8223215 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8223215, http://hg.openjdk.java.net/jdk/jdk/rev/b99e97bc5040, 257 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/0fa7ee85cbd1 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8223774: Shenandoah: Refactor ShenandoahRootProcessor and family Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8223774 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8223774, http://hg.openjdk.java.net/jdk/jdk/rev/ba1eccda5450, 255 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/61d39232937b 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8223951: Shenandoah: Only need to update thread roots during final update refs Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8223951 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8223951, http://hg.openjdk.java.net/jdk/jdk/rev/fe4c2de90b59, 255 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/ce530bcedaf5 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224179: Shenandoah: CTW test failures with traversal GC Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224179 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P3 Components: hotspot/gc Original Fix: 13: JDK-8224179, http://hg.openjdk.java.net/jdk/jdk/rev/af28daff6b98, 252 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/373a650b61b2 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224210: Shenandoah: Refactor ShenandoahRootScanner to support scanning CSet codecache roots Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224210 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224210, http://hg.openjdk.java.net/jdk/jdk/rev/2d90a0988c95, 252 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/4175933bc01c 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8221507: Implement JFR events for Shenandoah Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8221507 Reporter: Ken Dobson Assignee: Ken Dobson Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8221507, http://hg.openjdk.java.net/jdk/jdk/rev/43340a79840d, 251 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/0d620095e049 8: MISSING Release Notes: JDK-8226478: JFR events for Shenandoah This release implements two JFR events ShenandoahHeapRegionStateChange and ShenandoahHeapRegionInformation which provide internal GC diagnostic data that can be used to visualize the shenandoah heap regions. ---------------------------------------------------------------------------------------------------- JDK-8224495: Shenandoah: Do not rescan code roots in final mark pause if it is not degenerated GC Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224495 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224495, http://hg.openjdk.java.net/jdk/jdk/rev/a5f5e680ea32, 251 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/d8f51587d066 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224508: Shenandoah: Need to update thread roots in final mark for piggyback ref update cycle Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224508 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224508, http://hg.openjdk.java.net/jdk/jdk/rev/0b56fc0448ec, 250 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/108cd900cdbb 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224525: Shenandoah: Eliminate shenandoah verifier's side-effects Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224525 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224525, http://hg.openjdk.java.net/jdk/jdk/rev/37d8790efed7, 250 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/76eb4900bc0e 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224579: ResourceMark not declared in shenandoahRootProcessor.inline.hpp with --disable-precompiled-headers Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224579 Reporter: Qi Ao Assignee: Qi Ao Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224579, http://hg.openjdk.java.net/jdk/jdk/rev/b1f070f4a4ae, 250 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/e74224a5a89a 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224115: Shenandoah: Eliminate RWLock that protects recorded nmethod data array Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224115 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224115, http://hg.openjdk.java.net/jdk/jdk/rev/fc66237d5eae, 248 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/a3441e83df1f 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224679: Shenandoah: Make ShenandoahParallelCodeCacheIterator noncopyable Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224679 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224679, http://hg.openjdk.java.net/jdk/jdk/rev/da5435d9a801, 248 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/8c2086c734ca 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224751: Shenandoah: Shenandoah Verifier should select proper roots according to current GC cycle Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224751 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224751, http://hg.openjdk.java.net/jdk/jdk/rev/812212323fb1, 245 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/97854cc19ec8 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224875: Shenandoah: ParallelCleaning code unloading should take lock to protect shared code roots array Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224875 Reporter: Aleksey Shipilev Assignee: Zhengyu Gu Priority: P1 Components: hotspot/gc Original Fix: 13: JDK-8224875, http://hg.openjdk.java.net/jdk/jdk/rev/934d68e9c45d, 243 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/84a428aa2919 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8224978: Shenandoah: Allows root verifier to verify some roots outside safepoints with proper locks Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8224978 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8224978, http://hg.openjdk.java.net/jdk/jdk/rev/04ff1e00635a, 242 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/9b167d7c68af 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8225014: Separate ShenandoahRootScanner method for object_iterate Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8225014 Reporter: Aleksey Shipilev Assignee: Zhengyu Gu Priority: P3 Components: hotspot/gc Original Fix: 13: JDK-8225014, http://hg.openjdk.java.net/jdk/jdk/rev/f19a728d576d, 241 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/7946b5c7da62 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8225171: Remove leftovers in shenandoahBarrierSetC1.cpp Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8225171 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8225171, http://hg.openjdk.java.net/jdk/jdk/rev/d3e404cc3972, 238 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/b9f33abe65c3 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8225341: Shenandoah: CM::update_thread_roots() needs to handle derived pointers Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8225341 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8225341, http://hg.openjdk.java.net/jdk/jdk/rev/27080d54c644, 236 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/5250b5918e4b 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8225572: Shenandoah: Move JNIHandles root out of serial roots Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8225572 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 13: JDK-8225572, http://hg.openjdk.java.net/jdk/jdk/rev/f7cc25dda38a, 230 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/37ae49b429da 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8225573: Shenandoah: Enhance ShenandoahVerifier to ensure roots to-space invariant Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8225573 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8225573, http://hg.openjdk.java.net/jdk/jdk/rev/970adfac768d, 223 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/b77d8cb64adc 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8225590: Shenandoah: Refactor ShenandoahClassLoaderDataRoots API Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8225590 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8225590, http://hg.openjdk.java.net/jdk/jdk/rev/79a7fc6c9bc7, 221 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/8fc8af45468a 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8226413: Shenandoah: Separate root scanner for SH::object_iterate() Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8226413 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8226413, http://hg.openjdk.java.net/jdk/jdk/rev/6a7d6b6bbd78, 221 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/dde4e164f8de 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8226586: Shenandoah: No need to pre-evacuate roots for degenerated GC Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8226586 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8226586, http://hg.openjdk.java.net/jdk/jdk/rev/c9e362aef472, 217 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/a33e29624a19 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8227199: Shenandoah: Remove superfluous calls to can_do_traversal_gc() Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8227199 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8227199, http://hg.openjdk.java.net/jdk/jdk/rev/0246f81c1dcd, 208 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/b0abc0a076d0 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8227039: Shenandoah: Aggressive heuristics for Traversal mode Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8227039 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8227039, http://hg.openjdk.java.net/jdk/jdk/rev/66a748c4f3ff, 206 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/1bdeea6ee2ae 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8227327: Shenandoah: Faster and more parallel tests Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8227327 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8227327, http://hg.openjdk.java.net/jdk/jdk/rev/78a2b1bb15cf, 206 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/53780c859693 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8226695: Shenandoah: Wire C1 and C2 IN_NATIVE barrier Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8226695 Reporter: Zhengyu Gu Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8226695, https://hg.openjdk.java.net/jdk/jdk/rev/92ab031d6540, 200 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: MISSING 8: Not affected ---------------------------------------------------------------------------------------------------- JDK-8227676: Shenandoah: More consistent naming of LRB runtime entry points Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8227676 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8227676, https://hg.openjdk.java.net/jdk/jdk/rev/aa96c53c592b, 196 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/9756f4413663 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8228364: Shenandoah: Remove unused code from ShenandoahBarrierSetC1 Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8228364 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8228364, https://hg.openjdk.java.net/jdk/jdk/rev/08893cf52ee9, 193 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/5cd2f7b7bce4 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8228532: Shenandoah: Implement SBSA::try_resolve_jobject_in_native() Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8228532 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8228532, https://hg.openjdk.java.net/jdk/jdk/rev/db740ced41c4, 185 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/0022a2d0d7b5 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8229176: Shenandoah should acquire CodeCache_lock without safepoint check Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8229176 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P1 Components: hotspot/gc Original Fix: 14: JDK-8229176, https://hg.openjdk.java.net/jdk/jdk/rev/758da77e4cd2, 174 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8228369: Shenandoah: Refactor LRB C1 stubs Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8228369 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8228369, https://hg.openjdk.java.net/jdk/jdk/rev/bfcdcd00e4fb, 168 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/20fd74153e61 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8229470: Shenandoah: Fix C1 getAndSetObject() failure Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8229470 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8229470, https://hg.openjdk.java.net/jdk/jdk/rev/9c0715c5bbf3, 167 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/6290223e12a8 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8229709: x86_32 build and test failures after JDK-8228369 (Shenandoah: Refactor LRB C1 stubs) Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8229709 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P1 Components: hotspot/gc Original Fix: 14: JDK-8229709, https://hg.openjdk.java.net/jdk/jdk/rev/9bddbd69351c, 166 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/599a5aade8ce 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8229865: Use explicit #include debug.hpp for STATIC_ASSERT in gc/shenandoah/shenandoahUtils.cpp Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8229865 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8229865, https://hg.openjdk.java.net/jdk/jdk/rev/f0c73a5683e7, 161 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/3cc786aeb0b8 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8229921: Shenandoah: Make Traversal mode non-experimental Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8229921 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8229921, https://hg.openjdk.java.net/jdk/jdk/rev/1ba30faf88e5, 160 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/ccf60608b872 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8229977: Shenandoah: save/restore FPU state aroud LRB runtime call Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8229977 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8229977, https://hg.openjdk.java.net/jdk/jdk/rev/253c817653b6, 159 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/85587c9b24c4 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8230024: Shenandoah: remove unnecessary ShenandoahTimingConverter Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8230024 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P2 Components: hotspot/gc Original Fix: 14: JDK-8230024, https://hg.openjdk.java.net/jdk/jdk/rev/e70dec4229e9, 158 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8231086: Shenandoah: Stronger invariant for object-arraycopy Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231086 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8231086, https://hg.openjdk.java.net/jdk/jdk/rev/0d7877278adf, 131 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/7d4368f2de65 8: MISSING Release Notes: JDK-8237012: Shenandoah arraycopy improvements When handling Object[] arraycopy, Shenandoah used to evacuate array elements / fix references in the destination array after the copy. This is not efficient when multiple copies are done, as fixups would have to run on every copy. Plus, the fixups in the destination array do not improve the accesses to the source array. Unfortunately, this was the only way to deal with arraycopy until the GC API was extended. In JDK 14 with GC API improvements, Shenandoah is now able to fix up object arrays at source before the arraycopy, which improves performance and opens up other optimization opportunities. ---------------------------------------------------------------------------------------------------- JDK-8231087: Shenandoah: Self-fixing load reference barriers for C1/C2 Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231087 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8231087, https://hg.openjdk.java.net/jdk/jdk/rev/bc0648405d67, 131 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/b16b63a399f3 8: MISSING Release Notes: JDK-8237013: Shenandoah self-fixing barriers Before this improvement, Shenandoah LRB barrier performance penalty for accessing forwarded objects involved resolving through the forwarding pointer, until the Update References phase fixed the affected references. A more efficient implementation ships now, where LRB self-fixes the forwarded reference on the same code path, eliminating continuous resolves for potentially hot accesses. Self-fixing is implemented for C1 and C2 (JDK-8231087), interpreter (JDK-8232992) and runtime (JDK-8232010) barriers. ---------------------------------------------------------------------------------------------------- JDK-8231198: Shenandoah: heap walking should visit all roots most of the time Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231198 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8231198, https://hg.openjdk.java.net/jdk/jdk/rev/de9d23469c68, 130 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/11fc0d1a04b6 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8231244: Shenandoah: all-roots heap walking misses some weak roots Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231244 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8231244, https://hg.openjdk.java.net/jdk/jdk/rev/89033e6641ed, 130 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/44db3832cddc 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8231293: Shenandoah: Traversal should not revive dead weak roots Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231293 Reporter: Aleksey Shipilev Assignee: Zhengyu Gu Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8231293, https://hg.openjdk.java.net/jdk/jdk/rev/501df37ce76b, 126 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/3b3be48da5e2 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8231410: Shenandoah: clone barrier should use base pointer Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231410 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8231410, https://hg.openjdk.java.net/jdk/jdk/rev/c7d9df2e470c, 124 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/15de62eb7c5a 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8231447: Shenandoah: Compilation-time regression after JDK-8231086 Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231447 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8231447, https://hg.openjdk.java.net/jdk/jdk/rev/f642ad5c655f, 124 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/9c7da607c2cb 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8231499: Shenandoah: compiler/arraycopy/TestDefaultMethodArrayCloneDeoptC2 fails Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231499 Reporter: Aleksey Shipilev Assignee: Roman Kennke Priority: P3 Components: hotspot/compiler Original Fix: 14: JDK-8231499, https://hg.openjdk.java.net/jdk/jdk/rev/752bf4d5fbb7, 119 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/e7aae0cd2515 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232205: Shenandoah: missing "Update References" -> "Update Roots" tracing Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232205 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8232205, https://hg.openjdk.java.net/jdk/jdk/rev/791217cdc433, 104 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/557a4cc1c277 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232730: Shenandoah: Traversal should not CAS the roots Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232730 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8232730, https://hg.openjdk.java.net/jdk/jdk/rev/15f4471787b9, 98 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/57aec6f46b17 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232778: Shenandoah: SBSA::arraycopy_prologue checks wrong register Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232778 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P2 Components: hotspot/gc Original Fix: 14: JDK-8232778, https://hg.openjdk.java.net/jdk/jdk/rev/a39cdab8fac1, 97 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/f9b41be358cd 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8222766: Shenandoah: streamline post-LRB CAS barrier (x86) Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8222766 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8222766, https://hg.openjdk.java.net/jdk/jdk/rev/6a147ac7a68f, 95 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/565592ae3503 8: MISSING Release Notes: JDK-8237011: Shenandoah CAS barriers improvements Following the Load-Reference-Barriers work in JDK 13 (JDK-8221766), Shenandoah improves CAS barriers to be more efficient. This may translate to higher performance in heavily concurrent code that deals with lots of object reference CASes, e.g. with AtomicReference.compareAndSet, VarHandle.compareAndSet, Unsafe.compareAndSet, etc. ---------------------------------------------------------------------------------------------------- JDK-8232908: Shenandoah: compact heuristics has incorrect trigger "Free is lower than allocated recently" Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232908 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8232908, https://hg.openjdk.java.net/jdk/jdk/rev/f8ffc59c2812, 95 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/743587c28e0f 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233021: Shenandoah: SBSC2::is_shenandoah_lrb_call should match all LRB shapes Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233021 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8233021, https://hg.openjdk.java.net/jdk/jdk/rev/808bbdb79916, 94 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/3f256a1dfee1 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8232992: Shenandoah: Implement self-fixing interpreter LRB Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8232992 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8232992, https://hg.openjdk.java.net/jdk/jdk/rev/ef8be51fff48, 91 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/714798cb4b9a 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233165: Shenandoah:SBSA::gen_load_reference_barrier_stub() should use pointer register for address on aarch64 Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233165 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P3 Components: hotspot/gc Original Fix: 14: JDK-8233165, https://hg.openjdk.java.net/jdk/jdk/rev/75099fcf7962, 89 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/46da94895435 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233387: Shenandoah: passive mode should disable pacing ergonomically Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233387 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8233387, https://hg.openjdk.java.net/jdk/jdk/rev/ab4db38ed085, 87 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/b44ba55259f5 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233232: AArch64: Shenandoah: jni_fast_GetLongField is broken Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233232 Reporter: Andrew Haley Assignee: Andrew Haley Priority: P2 Components: hotspot/gc Original Fix: 14: JDK-8233232, https://hg.openjdk.java.net/jdk/jdk/rev/7298f7c503b4, 84 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/c2943d379321 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233520: Shenandoah: do not sleep when thread is attaching Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233520 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8233520, https://hg.openjdk.java.net/jdk/jdk/rev/c727d5d4c22e, 84 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/b8cd9e98adca 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8233574: Shenandoah: build is broken without jfr Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8233574 Reporter: Jie Fu Assignee: Jie Fu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8233574, https://hg.openjdk.java.net/jdk/jdk/rev/03f182a0f62c, 83 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/d0949066979e 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8234232: [TESTBUG] gc/shenandoah/jvmti/TestHeapDump.java fails with -Xcomp Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8234232 Reporter: Jie Fu Assignee: Jie Fu Priority: P4 Components: hotspot/gc Original Fix: 14: JDK-8234232, https://hg.openjdk.java.net/jdk/jdk/rev/8c4c358272a9, 73 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/14604f14e2d4 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8235729: Shenandoah: Remove useless casting to non-constant Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8235729 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P4 Components: hotspot/compiler Original Fix: 14: JDK-8235729, https://hg.openjdk.java.net/jdk/jdk/rev/184d94d22d72, 47 day(s) ago Backports and Forwardports: 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/5ac82a52a0a0 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8236106: [TESTBUG] Shenandoah: Make TestThreadFailure more resilient Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8236106 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P3 Components: hotspot/gc Original Fix: 15: JDK-8236106, https://hg.openjdk.java.net/jdk/jdk/rev/cfaa2457a60a, 41 day(s) ago Backports and Forwardports: 14: 14, JDK-8236819, https://hg.openjdk.java.net/jdk/jdk14/rev/7c6cad4da86c, 19 day(s) ago 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/028fb8b00afc 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8236732: Shenandoah: Stricter placement for oom-evac scopes Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8236732 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P3 Components: hotspot/gc Original Fix: 15: JDK-8236732, https://hg.openjdk.java.net/jdk/jdk/rev/f2dad2a448d0, 20 day(s) ago Backports and Forwardports: 14: 14, JDK-8236822, https://hg.openjdk.java.net/jdk/jdk14/rev/129ba7bcbe21, 19 day(s) ago 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/ea821a5113f8 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8236181: C2: Remove useless step_over_gc_barrier() in int->bool conversion Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8236181 Reporter: Roman Kennke Assignee: Roman Kennke Priority: P3 Components: hotspot/compiler Original Fix: 15: JDK-8236181, https://hg.openjdk.java.net/jdk/jdk/rev/ef7777a6f84d, 18 day(s) ago Backports and Forwardports: 14: 14, JDK-8236820, https://hg.openjdk.java.net/jdk/jdk14/rev/ef7777a6f84d, 19 day(s) ago 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/f41977ddec73 8: MISSING ---------------------------------------------------------------------------------------------------- JDK-8231670: Remove TaskExecutor abstraction used in preserved marks processing Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8231670 Reporter: Thomas Schatzl Assignee: Thomas Schatzl Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8231670, https://hg.openjdk.java.net/jdk/jdk/rev/72f39a72b538, 19 day(s) ago Backports and Forwardports: 14: MISSING 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: Not affected ---------------------------------------------------------------------------------------------------- JDK-8228818: Shenandoah: Processing weak roots in concurrent phase when possible Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8228818 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8228818, https://hg.openjdk.java.net/jdk/jdk/rev/ddc79542ce3a, 18 day(s) ago Backports and Forwardports: 14: MISSING 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: Not affected ---------------------------------------------------------------------------------------------------- JDK-8237017: Shenandoah: Remove racy assertion Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237017 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8237017, https://hg.openjdk.java.net/jdk/jdk/rev/9338d0f52b2e, 14 day(s) ago Backports and Forwardports: 14: MISSING 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: Not affected ---------------------------------------------------------------------------------------------------- JDK-8237007: Shenandoah: assert(_base == Tuple) failure during C2 compilation Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237007 Reporter: Roland Westrelin Assignee: Roland Westrelin Priority: P3 Components: hotspot/compiler Original Fix: 15: JDK-8237007, https://hg.openjdk.java.net/jdk/jdk/rev/255d1be6295f, 12 day(s) ago Backports and Forwardports: 14: MISSING 11: Not affected 8: Not affected Shenandoah Backports: 11: https://hg.openjdk.java.net/shenandoah/jdk11//rev/cc43a6181ffd 8: https://hg.openjdk.java.net/shenandoah/jdk8/hotspot/rev/02224ba84e99 ---------------------------------------------------------------------------------------------------- JDK-8237223: Shenandoah: important flags should not be ergonomic for concurrent class unloading Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8237223 Reporter: Aleksey Shipilev Assignee: Aleksey Shipilev Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8237223, https://hg.openjdk.java.net/jdk/jdk/rev/d5c222f181b4, 12 day(s) ago Backports and Forwardports: 14: MISSING 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: Not affected ---------------------------------------------------------------------------------------------------- JDK-8234399: Shenandoah: Cleanup native load barrier Original Bug: URL: https://bugs.openjdk.java.net/browse/JDK-8234399 Reporter: Zhengyu Gu Assignee: Zhengyu Gu Priority: P4 Components: hotspot/gc Original Fix: 15: JDK-8234399, https://hg.openjdk.java.net/jdk/jdk/rev/36218eab4255, 4 day(s) ago Backports and Forwardports: 14: WAITING for patch to bake a little: 6 days more 11: Not affected 8: Not affected Shenandoah Backports: 11: Not affected 8: Not affected ---------------------------------------------------------------------------------------------------- 104 issues shown.