Public bug reported: We have many apps but I believe one app more or less does more work and it was crashing on OpenJDK 11 on Ubuntu Bionic. We are using version 11.0.16+8-0ubuntu1~18.04.
We have perf reports, Java map files, heaps from jemalloc, Java Native Memory Profiling (i.e. NMP) summary diffs, and SVGs from jemalloc (i.e. jeprof). We've been able to reliably reproduce this isse. Once we start sending data, the app very quickly consumes all RAM. I would say a gigabyte in about 3.5 seconds. We actually increased RAM to get to the bottom of it. We have several apps not all of them run into the same issue but not all of them work with the data the same way. NMP summary diff shows Compiler, perf shows C2Compiler, and I'm a system administrator but DevOps and Dev see it as the C2 JIT. Since there isn't a fix in Ubuntu OpenJDK-LTS 11 we used Adoptium 11.0.16.1 and so far have not been able to replicate the issue. https://bugs.openjdk.org/browse/JDK-8292260 ** Affects: openjdk-lts (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of OpenJDK, which is subscribed to openjdk-lts in Ubuntu. https://bugs.launchpad.net/bugs/1995307 Title: Running into OpenJDK 11 JIT C2 native memory leak JDK-8292260 Status in openjdk-lts package in Ubuntu: New Bug description: We have many apps but I believe one app more or less does more work and it was crashing on OpenJDK 11 on Ubuntu Bionic. We are using version 11.0.16+8-0ubuntu1~18.04. We have perf reports, Java map files, heaps from jemalloc, Java Native Memory Profiling (i.e. NMP) summary diffs, and SVGs from jemalloc (i.e. jeprof). We've been able to reliably reproduce this isse. Once we start sending data, the app very quickly consumes all RAM. I would say a gigabyte in about 3.5 seconds. We actually increased RAM to get to the bottom of it. We have several apps not all of them run into the same issue but not all of them work with the data the same way. NMP summary diff shows Compiler, perf shows C2Compiler, and I'm a system administrator but DevOps and Dev see it as the C2 JIT. Since there isn't a fix in Ubuntu OpenJDK-LTS 11 we used Adoptium 11.0.16.1 and so far have not been able to replicate the issue. https://bugs.openjdk.org/browse/JDK-8292260 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openjdk-lts/+bug/1995307/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~openjdk Post to : openjdk@lists.launchpad.net Unsubscribe : https://launchpad.net/~openjdk More help : https://help.launchpad.net/ListHelp
