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Type: Bug
Resolution: Fixed
Priority: P2
Fix Version/s: 14
Affects Version/s: 11, 11-shenandoah, 14, 15
Component/s: hotspot
Labels:

Subcomponent:
gc
Resolved In Build:
b33

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8237729	15	Zhengyu Gu	P2	Resolved	Fixed	b08
JDK-8237716	14.0.2	Zhengyu Gu	P2	Resolved	Fixed	b01
JDK-8237720	14.0.1	Zhengyu Gu	P2	Resolved	Fixed	b02
JDK-8246607	13.0.4	Zhengyu Gu	P2	Resolved	Fixed	b04
JDK-8240452	11.0.8	Zhengyu Gu	P2	Resolved	Fixed	b01

JvmtiTagMap::weak_oops_do() is used by GC, and GC wants to see raw oop, not translated by barriers.

The method uses NativeAccess barrier to load oop, which is incorrect. This unexpected behavior results Shenandoah failure.

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hs_err_pid24570.log
694 kB
2020-01-16 12:47

backported by

JDK-8237716 JvmtiTagMap::weak_oops_do() should not trigger barriers

Resolved

JDK-8237720 JvmtiTagMap::weak_oops_do() should not trigger barriers

Resolved

JDK-8237729 JvmtiTagMap::weak_oops_do() should not trigger barriers

Resolved

JDK-8240452 JvmtiTagMap::weak_oops_do() should not trigger barriers

Resolved

JDK-8246607 JvmtiTagMap::weak_oops_do() should not trigger barriers

Resolved

duplicates

JDK-8237638 Shenandoah fails some vmTestbase_nsk_jvmti tests with "assert(!ShenandoahThreadLocalData::is_evac_allowed(Thread::current())) failed: sanity"

Closed

relates to

JDK-8242216 ObjectSampler::weak_oops_do() should not trigger barrier

Resolved

JDK-8245240 Shenandoah: support nesting evacuation OOM scope

Resolved

(1 duplicates, 2 relates to)

Assignee:: Zhengyu Gu
Reporter:: Zhengyu Gu
Votes:: 0 Vote for this issue
Watchers:: 5 Start watching this issue

Created:: 2020-01-16 12:47
Updated:: 2020-07-14 12:21
Resolved:: 2020-01-22 04:44

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