On Tue, 4 Feb 2025 22:59:55 GMT, Shaojin Wen <s...@openjdk.org> wrote:
>> Shaojin Wen has updated the pull request incrementally with one additional >> commit since the last revision: >> >> fx comments > > Thanks @RogerRiggs, your suggestion is great, I have fixed it, please help me > review it again. > > @wenshao Thank you. This seems to be a GC problem. I adjusted the JBS issue > > accordingly. You set this to "24" as affected version, but if this is a > > mainline issue, please add 25 and if possible all other versions this > > occurs in. If possible, please attach an hs-err file or at least the crash > > stack. > > I added the hs-err file in the reply above. This is not a GC problem. The > getChars method uses StringUTF16.putChar, which is equivalent to > Unsafe.putChar. There is no out-of-bounds check. When concurrent, > out-of-bounds writes will occur, causing JVM Crash. @wenshao I see. Yes, you are right. Interesting - I was not aware of JDK code using unsafe-like put calls internally. ------------- PR Comment: https://git.openjdk.org/jdk/pull/23427#issuecomment-2637132895
