I get regular jvm crashes on linux server with jdk 1.8 u121 and CPU load 100%.
VM params are
-XX:+UseG1GC
-XX:+UseLargePages
-XX:+AlwaysPreTouch
-XX:+DisableExplicitGC
-XX:G1HeapRegionSize=16777216
-XX:InitialHeapSize=17179869184
-XX:MaxHeapSize=17179869184
-XX:MaxMetaspaceSize=1073741824
-XX:MetaspaceSize=1073741824
-XX:+PrintGC
-XX:+PrintGCDetails
-XX:+PrintGCTimeStamps
-XX:+UseCompressedClassPointers
-XX:+UseCompressedOops
GC log shows, that heap and metaspace are good garbage-collected. Full GC happens only 6 times in 2 days.
All hs_err_pid files say
# Out of Memory Error (allocation.cpp:273), pid=blabla, tid=0x0000blablabla
The last messages in hs_err_pid files from 6 lates crashes
Memory: 4k page, physical 24478968k(135672k free), swap 4193276k(4167448k free)
Memory: 4k page, physical 24478968k(622028k free), swap 4193276k(4168912k free)
Memory: 4k page, physical 24478968k(562104k free), swap 4193276k(4180084k free)
Memory: 4k page, physical 24478968k(365528k free), swap 4193276k(4180096k free)
Memory: 4k page, physical 24478968k(526376k free), swap 4193276k(4180108k free)
Memory: 4k page, physical 24478968k(133264k free), swap 4193276k(4179064k free)
What may cause this crashes? What happens to jvm? May it depend on low free physical memory?