RFR: 8276801: gc/stress/CriticalNativeStress.java fails intermittently with Shenandoah
zgu at openjdk.java.net
Tue Nov 9 16:09:56 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
- Consistent assert
- Strength assert
Stats: 12 lines in 2 files changed: 7 ins; 1 del; 4 mod
Fetch: git fetch https://git.openjdk.java.net/jdk pull/6316/head:pull/6316
More information about the hotspot-gc-dev