RFR 10: 8184808 (process) isAlive should use pid for validity, not /proc/pid
Roger.Riggs at Oracle.com
Wed Jul 19 19:47:38 UTC 2017
OnExitTest is unchanged and was the test the discovered the bug; so I
don't think it needs a @bug.
On 7/19/2017 12:27 AM, Felix Yang wrote:
> Hi Roger,
> 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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