On Fri, 18 Aug 2023 12:14:35 GMT, Jaikiran Pai <j...@openjdk.org> wrote:
> Hello Matthias, I think adding some diagnostics in this class would be a good > thing. Like in the JBS issue that this PR links to, there's another JBS issue > https://bugs.openjdk.org/browse/JDK-8304938 where we run into intermittent > failures because of this exception. > > However, before doing the changes being proposed in this PR, would it be > better to do those (minimal) changes in a private build and run those tests > and see if these proposed error number or error message diagnostics do > provide the needed detail to narrow down this issue? That might provide > insight on what else (if anything) would need to be included in that > diagnostic message. > > In the meantime, I'll run your proposed change which shows the error number, > just to see if that tells us what's going on with these tests, when they fail. the enhanced output in a failing sun/tools/jhsdb/JStackStressTest.java is java.util.prefs.BackingStoreException: Couldn't get file lock. errno is 11 mode is nonshared errno 11 seems to be EAGAIN. Unfortunately even the enhanced message does not tell me if it is a failure of open or fcntl in the native layer , that would be good to know. We see this issue mostly on a particular Linux machine, probably I should ask the admins what's 'special' about this machine .... ------------- PR Comment: https://git.openjdk.org/jdk/pull/15308#issuecomment-1683850190
