Hello, please review the following change . It brings AIX related virtualization information into the hs_err file . While preparing the patch I wondered a bit about the libperfstat usage in OpenJDK (Hotspot compared to JDK ). In JDK we link already to libperfstat at build time , see : jdk/make/lib/Lib-java.management.gmk BUILD_LIBMANAGEMENT jdk/make/lib/Lib-jdk.management.gmk BUILD_LIBMANAGEMENT_EXT While in hotspot dlopen/dladdr is used , see jdk/src/hotspot/os/aix/libperfstat_aix.cpp 58 bool libperfstat::init() { 59 60 // Dynamically load the libperfstat porting library. 61 g_libhandle = dlopen("/usr/lib/libperfstat.a(shr_64.o)", RTLD_MEMBER | RTLD_NOW); 62 if (!g_libhandle) { 63 trcVerbose("Cannot load libperfstat.a (dlerror: %s)", dlerror()); 64 return false; 65 } we dlopen and then resolve symbols at runtime. This was probably a good thing back then when AIX 5.3 was still supported as build platform , but I am not sure if it is still needed these days on AIX 7.1/7.2 . But in case the dlopen/dladdr approach in HS is still needed/wanted , I would switch to the libperfstat:: functions . Bug/webrev : https://bugs.openjdk.java.net/browse/JDK-8222280 http://cr.openjdk.java.net/~mbaesken/webrevs/8222280_aix_virt.0/ Thanks , Matthias