On Thu, 30 Apr 2026 09:13:46 GMT, Yasumasa Suenaga <[email protected]> wrote:
>> We could see jtreg test failure in TestJhsdbJstackMixedWithXComp.java due to >> unable unwinding from continuation stub. >> SA could unwind mixed call stacks since >> [JDK-8377946](https://bugs.openjdk.org/browse/JDK-8377946), and enabled >> TestJhsdbJstackMixedWithXComp tests in it. Hence the problem has been >> suffered. The problem was reported in Valhalla, but it is potential to >> happen on upstream, thus I proposed the fix to upstream. >> >> There are 2 problems in LinuxAARCH64CFrame: >> >> 1. On AArch64 which disables `PreserveFramePointer`, we cannot believe FP to >> unwind call stacks, thus we might not be able to unwind call stacks from >> Java frame (includes code blobs). >> 2. In continuation stub, we need to get SP/FP/PC from continuation entry. >> >> So I fixed them in this PR, and it works on both upstream and Valhalla. >> >> --------- >> - [x] I confirm that I make this contribution in accordance with the >> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). > > Yasumasa Suenaga has updated the pull request incrementally with one > additional commit since the last revision: > > Fix comments Thanks! ------------- Marked as reviewed by kevinw (Reviewer). PR Review: https://git.openjdk.org/jdk/pull/30959#pullrequestreview-4204207893
