On Thu, 7 Sep 2023 16:58:38 GMT, Andrew Haley <a...@openjdk.org> wrote:
> This PR fixes a specific problem caused by using r29/rfp to unwind Java code. > For some time we have treated r29 as a callee-saved scratch register, and it > is freely used by C2-generated code. Therefore, any code in SA that uses > getFP() in a compiled frame is very likely to come to grief. > > I believe this is the root cause of 8313800, but it's very hard to prove that > because because it's something of an intermittent fault. This pull request has now been integrated. Changeset: 1d702d28 Author: Andrew Haley <a...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/1d702d28b687add53762435abceb55f4dc2d37e2 Stats: 16 lines in 1 file changed: 0 ins; 9 del; 7 mod 8313800: AArch64: SA stack walking code having trouble finding sender frame when invoking LambdaForms is involved Reviewed-by: cjplummer ------------- PR: https://git.openjdk.org/jdk/pull/15624
