RFR 10: 8184808 (process) isAlive should use pid for validity, not /proc/pid
felix.yang at oracle.com
Wed Jul 19 04:27:25 UTC 2017
is it necessary to add the bug id to OnExitTest?
On 2017/7/19 2:46, Roger Riggs wrote:
> Please review a fix for an intermittent failure in the ProcessHandle
> that fails frequently on Solaris.
> ProcessHandle.isAlive is using /proc/pid/psinfo to determine if a
> process is alive and it's start time.
> However, it appears that the between the process exiting and the
> reaping of its status, the
> psinfo file indicates the process is alive but kill(pid, 0) reports
> that is is not alive.
> Depending on a race, the ProcessHandler.onExit may determine the
> process has exited
> but later isAlive may report it is alive.
> To have a consistent view of the process being alive,
> ProcessHandle.isAlive in its native implementation
> should use kill(pid, 0) to determine if the process is definitively
> determine if the process alive.
> The original issue will be kept open until it is known that it is
> Thanks, Roger
>  https://bugs.openjdk.java.net/browse/JDK-8177932
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