RFR: 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized

[Jamsheed C m]

with this fix, i need to skip verify (exception) oop in 
Interpreter::_rethrow_exception_entry for realloc failure case.(as in 
uncommon_trap case current implementation doesn't support exception 
handling)

this is platform specific change, let me know if i can do that.


Best Regards,

Jamsheed

On 6/1/2016 5:03 PM, Jamsheed C m wrote:
> Hi Roland, and All,
>
> earlier implementation was not correct!
>
> i have updated the patch in place.
>
> Please review.
>
> Best Regards,
>
> Jamsheed
>
>
> On 5/31/2016 4:36 PM, Jamsheed C m wrote:
>> Hi Roland, and All,
>>
>> I have made shared only change.
>>
>> Revised webrev: http://cr.openjdk.java.net/~jcm/8146416/webrev.01/
>>
>> Best Regards,
>>
>> Jamsheed
>>
>>
>> On 5/27/2016 7:56 PM, Jamsheed C m wrote:
>>> some of the code that may require change
>>>
>>> this is based on quick grep result.. not based on analysis
>>>
>>> ...
>>> guarantee(!(thread->deopt_nmethod()->is_compiled_by_c2() &&
>>>               *bcp == Bytecodes::_monitorenter &&
>>>               exec_mode == Deoptimization::Unpack_exception),
>>>             "shouldn't get exception during monitorenter");
>>>
>>> ...
>>>     } else if (JvmtiExport::can_force_early_return() && state != 
>>> NULL && state->is_earlyret_pending()) {
>>>
>>> ...
>>>
>>>     (is_top_frame && (exec_mode == Unpack_exception) && 
>>> iframe->interpreter_frame_expression_stack_size() == 0) ||
>>>
>>>
>>> Best Regards,
>>> Jamsheed
>>> On 5/27/2016 2:52 PM, Jamsheed C m wrote:
>>>> My concern is like adding  checks in shared code, would reduce 
>>>> readability still further..
>>>>
>>>> for platform change its simple check and forward change, a detailed 
>>>> comment would do!
>>>>
>>>> Best Regards,
>>>> Jamsheed
>>>>
>>>> On 5/27/2016 1:13 PM, Roland Westrelin wrote:
>>>>> Hi Jamsheed,
>>>>>
>>>>>> can i go ahead with this change ?
>>>>> I still think a shared code only change would be better (unless you
>>>>> demonstrate a reasonable shared code change is not possible). What do
>>>>> others think?
>>>>>
>>>>> Roland.
>>>>
>>>
>>
>