RFR[9u-dev] 8130425: libjvm crash due to stack overflow in executables with 32k tbss/tdata

[David Holmes]

On 20/01/2016 12:50 AM, Roger Riggs wrote:
> Hi,
>
> How about "jdk.process.reaperStackSize".

Based on some internal discussion that seems appropriate to me ...

> It will need a CCC .

... and if not then the CCC will show the way. :)

Thanks,
David

> Roger
>
>
> On 1/19/16 7:10 AM, David Holmes wrote:
>> On 19/01/2016 9:53 PM, Kevin Walls wrote:
>>> |
>>> Hi Cheleswer, I think Martin is suggesting something like:
>>> |
>>>
>>> // Use a modest stack size, unless requested otherwise:
>>> long stackSize =
>>> Boolean.getBoolean("processReaperUseDefaultStackSize") ? 0 : 32768;
>>
>> Someone from core-libs needs to chime on what the appropriate
>> namespace for such a property would be.
>>
>> David
>> -----
>>
>>> Thread t = new Thread(systemThreadGroup, grimReaper, "process
>>> reaper", stackSize);
>>>
>>> |||
>>> If that tests OK for you, it may be the way we can go ahead with the
>>> point fix for this.
>>>
>>> Regards
>>> Kevin
>>> |
>>> On 18/01/2016 16:52, Martin Buchholz wrote:
>>>> Historical note - I never liked having a reaper thread for each
>>>> subprocess, but no other reliable implementation is known. Given the
>>>> potential for many reaper threads, I at least wanted to keep the
>>>> memory waste low.
>>>>
>>>> On Wed, Jan 13, 2016 at 2:25 AM, cheleswer sahu
>>>> <cheleswer.sahu at oracle.com>  wrote:
>>>>
>>>>> +                   Thread t = null;
>>>>> +                   if
>>>>> (Boolean.getBoolean("processReaperUseDefaultStackSize")) {
>>>>> +                       t = new Thread(systemThreadGroup, grimReaper,
>>>>> "process reaper");
>>>>> +                    } else {
>>>>> +                       // Our thread stack requirement is quite
>>>>> modest.
>>>>> +                       t = new Thread(systemThreadGroup, grimReaper,
>>>>> "process reaper", 32768);
>>>>> +                    }
>>>> If we do end up using this strategy, cleaner would be to use
>>>> https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html#Thread-java.lang.ThreadGroup-java.lang.Runnable-java.lang.String-long-
>>>>
>>>> stackSize - the desired stack size for the new thread, or zero to
>>>> indicate that this parameter is to be ignored.
>>>
>