Hello,
I tried “jstack -m PID”in latest openjdk 8 64-bit and “jhsdb jstack –mixed –pid PID” in latest openjdk 11 64-bit on latest Ubuntu(18.04) and latest fedora (29) and RHEL 8 Beta. The stack traces returned are always incomplete like following output: ----------------- 1479 ----------------- "DestroyJavaVM" #17 prio=5 tid=0x0000000000bae000 nid=0x5c7 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE JavaThread state: _thread_blocked 0x00007f839224f9f3 __pthread_cond_wait + 0x243 ----------------- 1480 ----------------- ----------------- 1481 ----------------- "Reference Handler" #2 daemon prio=10 tid=0x0000000000c36000 nid=0x5c9 waiting on condition [0x00007f8376d15000] java.lang.Thread.State: RUNNABLE JavaThread state: _thread_blocked 0x00007f839224f9f3 __pthread_cond_wait + 0x243 ----------------- 1482 ----------------- "Finalizer" #3 daemon prio=8 tid=0x0000000000c3a000 nid=0x5ca in Object.wait() [0x00007f8376c14000] java.lang.Thread.State: WAITING (on object monitor) JavaThread state: _thread_blocked 0x00007f839224f9f3 __pthread_cond_wait + 0x243 ----------------- 1483 ----------------- "Signal Dispatcher" #4 daemon prio=9 tid=0x0000000000c56800 nid=0x5cb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE JavaThread state: _thread_blocked 0x00007f83922526d6 do_futex_wait.constprop.1 + 0x36 The issue existed even after I disable the selinux. It can not be reproduced on oracle linux 7.4. The kernel version on Ubuntu or fedora is 4.15. the kernel version on RHEL 8 Beta is 4.18. the kernel version on Oracle linux 7.4 is 3.1. I can not find any existed bug for now. Is there any clue about this issue? Any reply will be appreciated. Best Regards Gao Shuai from GCS
