In order to implement concurrent class unloading, a mechanism will be required to arm nmethods in a safepoint such that the first entry into an nmethod after the pause triggers a barrier before continuing.
The barrier will be used for:
* Patching immediate oops, and keeping phantomly reachable oops alive through the nmethod entry
* Cleaning IC caches that are potentially stale after class unloading
* Detecting entries through stale IC caches during unloading
The barrier will be used for:
* Patching immediate oops, and keeping phantomly reachable oops alive through the nmethod entry
* Cleaning IC caches that are potentially stale after class unloading
* Detecting entries through stale IC caches during unloading
- relates to
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JDK-8212609 Minimal VM build failure after JDK-8210498 (nmethod entry barriers)
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- Resolved
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- Resolved
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- Resolved
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- Resolved
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JDK-8260372 [PPC64] Add support for JDK-8210498 and JDK-8222841
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- Resolved
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