RFR: 8032901: WaitForMultipleObjects() return value not handled appropriately

[David Holmes]

I don't understand this one at all. What is an "abandoned mutex"? For 
that matter why does the code wait on a mutex and an event? Do we 
already own the mutex? If so what does it mean to wait on it? If not 
then how can we release it?

???

Thanks,
David


On 13/05/2014 8:57 PM, Alan Bateman wrote:
>
> This is debugger's shared memory transport so cc'ing serviceability-dev
> as that is there this code is maintained.
>
> Is there a test case or any outline of the conditions that cause this? I
> think that would be useful to understand the issue further.
>
> -Alan
>
> On 13/05/2014 11:46, Aleksej Efimov wrote:
>> Hi,
>>
>> Can I have a review for 8032901 bug [1] fix [2]. There is a possible
>> case when 'WaitForMultipleObjects' function can return the
>> WAIT_ABANDONED_0 [3] error value.
>> In such case it's better to release the mutex and return error value.
>> This will prevent other threads to be blocked on abandoned mutex.
>>
>> Thank you,
>> Aleksej
>>
>> [1] https://bugs.openjdk.java.net/browse/JDK-8032901
>> [2] http://cr.openjdk.java.net/~aefimov/8032901/9/webrev.00/
>> [3]
>> http://msdn.microsoft.com/en-gb/library/windows/desktop/ms687025(v=vs.85).aspx
>>
>