RFR: 8367967: C2: "fatal error: Not monotonic" with Mod nodes

Wed Sep 24 09:24:34 UTC 2025

On Mon, 22 Sep 2025 06:48:45 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> I'll test this in our CI to see if this fixes the linux aarch64 issues (observed when running Test java/foreign/TestUpcallStress.java ) .

Unfortunately we still see an assert in the test   java/foreign/TestUpcallStress on Linux aarch64 .
But this time it is not the 'old' one but

`#  assert(oopDesc::is_oop(obj)) failed: not an oop: 0x0000000000000001`

Maybe it is unrelated, not sure .

-------------

PR Comment: https://git.openjdk.org/jdk/pull/27408#issuecomment-3327392422