On Thu, 20 Nov 2025 08:43:58 GMT, Marc Chevalier <[email protected]> wrote:
> Let's do a similar job as in https://github.com/openjdk/valhalla/pull/1509 > and see what evolved since [JDK-8350209: Preserve adapters in AOT > cache](https://bugs.openjdk.org/browse/JDK-8350209) landed in Valhalla. > > For each tick in the list, I give a range that behaves homogeneously, and > compare it to a Mainline and/or Valhalla range of > https://github.com/openjdk/valhalla/pull/1509 > > - [4, 24] ~ Mainline [4, 28] > ``` > # There is insufficient memory for the Java Runtime Environment to continue. > # Native memory allocation (malloc) failed to allocate 3000 bytes. Error > detail: `CodeCache: no room for StubRoutines` (continuation stubs) > ``` > - [25, 28] ~ Mainline [29, 32] | Valhalla [29, 32] > `fatal error: Initial size of CodeCache is too small` > - [29, 1164] ~ Mainline [33, 1112] | Valhalla [33, 1164] > ``` > # There is insufficient memory for the Java Runtime Environment to continue. > # Native memory allocation (malloc) failed to allocate 1108928 bytes. Error > detail: CodeCache: no room for Interpreter > ``` > - [1165, 1172] ~ Mainline [1117, 1128] | Valhalla [1165, 1172] > `fatal error: Initial size of CodeCache is too small` > - [1173, 1176] ~ Valhalla [1225, 1228] (out of order, weird, uh!) > SIGSEGV in `CodeSection::emit_int8(unsigned char)` > - [1177, 1224] ~ Mainline [1129, 1144] | Valhalla [1173, 1220] > `assert(_buffer != nullptr) failed: should be initialized` > - [1225, 1228] ~ Mainline [1145, 1148] | Valhalla [1221, 1224] > `assert(_no_arg_handler != nullptr && _obj_arg_handler != nullptr && > _int_arg_handler != nullptr && _obj_int_arg_handler != nullptr && > _obj_obj_arg_handler != nullptr) failed: Initial adapter handlers must be > properly created` > - [1229, ~1250] ~ Mainline [1149, ~1700] > Often works, sometimes > ``` > java.lang.OutOfMemoryError: Out of space in CodeCache for adapters > ``` > - [~1250, 1276] > Mostly works > - [1277, 1432] > ``` > java.lang.OutOfMemoryError: Out of space in CodeCache for adapters > ``` > - [1433, 1438] ~ Valhalla [1301, 1308] > ``` > java.lang.InternalError: java.lang.NoSuchMethodException: no such method: > java.lang.invoke.MethodHandle.linkToStatic(Object,Object,MemberName)Object/invokeStatic > Caused by: java.lang.NoSuchMethodException: no such method: > java.lang.invoke.MethodHandle.linkToStatic(Object,Object,MemberName)Object/invokeStatic > ``` > - [1439, ~1600] > works but > ``` > CodeCache is full. Compiler has been disabled. > ``` > - Above 1600, compiler shutdown starts to be rare, but again around 2800k > Like it was for Valha... Looks reasonable, thanks for the thorough analysis! ------------- Marked as reviewed by chagedorn (Committer). PR Review: https://git.openjdk.org/valhalla/pull/1749#pullrequestreview-3499118718
