hg: jdk/jdk: 8247533: SA stack walking sometimes fails with sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp

[chris.plummer at oracle.com]

Changeset: fdfcdf562f0c
Author:    cjplummer
Date:      2020-07-02 13:13 -0700
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/fdfcdf562f0c

8247533: SA stack walking sometimes fails with sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
Reviewed-by: sspitsyn, ysuenaga, dtitov

! src/jdk.hotspot.agent/linux/native/libsaproc/LinuxDebuggerLocal.cpp
! src/jdk.hotspot.agent/linux/native/libsaproc/ps_proc.c
! src/jdk.hotspot.agent/macosx/native/libsaproc/MacosxDebuggerLocal.m
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/debugger/bsd/BsdDebuggerLocal.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/debugger/bsd/BsdThread.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/debugger/linux/LinuxDebuggerLocal.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/debugger/linux/LinuxThread.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/debugger/windbg/amd64/WindbgAMD64Thread.java
! src/jdk.hotspot.agent/windows/native/libsaproc/sawindbg.cpp