RFR: 8276801: gc/stress/CriticalNativeStress.java fails intermittently with Shenandoah [v4]
zgu at openjdk.java.net
Wed Nov 10 17:19:55 UTC 2021
> JDK-8276205 fixed a bug that prevents concurrent code cache iteration, without holding CodeCache_lock. That causes register_nmethod() calls can go through during concurrent code cache iteration.
> This is no a problem for new nmethod, cause it is *not* in cache cache snapshot for concurrent code cache iteration, but *nmethod patching* is. We can not allow *nmethod patching* during concurrent code cache iteration, should block it until iteration is completed.
> - [x] hotspot_gc_shenandoah
> - [x] Stress test on gc/stress/CriticalNativeStress.java
Zhengyu Gu has updated the pull request incrementally with one additional commit since the last revision:
Reverted wrong method
- all: https://git.openjdk.java.net/jdk/pull/6316/files
- new: https://git.openjdk.java.net/jdk/pull/6316/files/8e07b342..0a2ef517
- full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6316&range=03
- incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6316&range=02-03
Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
Fetch: git fetch https://git.openjdk.java.net/jdk pull/6316/head:pull/6316
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