Hi, I believe the root cause is openjdk not flushing output/error streams on shutdown. We can patch it in jtreg8, but a better fix would be to address it in openjdk.
Best Regards, Vladimir. [1] https://github.com/openjdk/jdk21u-dev/pull/290 On Mon, Oct 6, 2025 at 7:35 AM tony mancill <[email protected]> wrote: > > On Sun, Oct 05, 2025 at 01:06:01PM +0200, Matthias Klose wrote: > > Control: severity -1 important > > > > lowering the severity, not reproducible in local builds. > > I am able to reproduce the build failure in approximately 10% of builds > in a clean sid chroot on a 2-vCPU VM in AWS: > > ~/jtreg8$ grep -e ^Status: -e ^Fail-Stage: *_amd64-*.build | grep :Status | > awk '{print $2}'| sort | uniq -c > 6 attempted > 59 successful > > You can view the build logs here: > > https://people.debian.org/~tmancill/jtreg8-1115694/jtreg_1115694_build_failures.tgz > > I haven't had a chance to dig into failure, but it could be in > StreamsTest.gmk: > > jtreg8_8+2+ds1-2_amd64-2025-10-02T15:31:29Z.build:make[2]: *** > [../test/streams/StreamsTest.gmk:37: > /build/reproducible-path/jtreg8-8+2+ds1/build/test/StreamsTest.agentvm.ok] > Error 1 > jtreg8_8+2+ds1-2_amd64-2025-10-02T17:51:21Z.build:make[2]: *** > [../test/streams/StreamsTest.gmk:37: > /build/reproducible-path/jtreg8-8+2+ds1/build/test/StreamsTest.agentvm.ok] > Error 1 > jtreg8_8+2+ds1-2_amd64-2025-10-03T00:17:03Z.build:make[2]: *** > [../test/streams/StreamsTest.gmk:37: > /build/reproducible-path/jtreg8-8+2+ds1/build/test/StreamsTest.agentvm.ok] > Error 1 > jtreg8_8+2+ds1-2_amd64-2025-10-03T00:26:59Z.build:make[2]: *** > [../test/streams/StreamsTest.gmk:38: > /build/reproducible-path/jtreg8-8+2+ds1/build/test/StreamsTest.agentvm.ok] > Error 1 > jtreg8_8+2+ds1-2_amd64-2025-10-03T15:54:01Z.build:make[2]: *** > [../test/streams/StreamsTest.gmk:38: > /build/reproducible-path/jtreg8-8+2+ds1/build/test/StreamsTest.agentvm.ok] > Error 1 > jtreg8_8+2+ds1-2_amd64-2025-10-03T16:51:16Z.build:make[2]: *** > [../test/streams/StreamsTest.gmk:37: > /build/reproducible-path/jtreg8-8+2+ds1/build/test/StreamsTest.agentvm.ok] > Error 1 > > Thanks, > tony
