Hi Jochen,
I've filed a bug (https://bugs.chromium.org/p/v8/issues/detail?id=5645).
Since our SDK is open source I added pointers to code that will reproduce
the issue.
Thanks and best,
Kevin
On Thursday, November 10, 2016 at 2:46:37 PM UTC+1, Jochen Eisinger wrote:
>
> can you file a bug at crbug.com/v8/new please? It would be great if you
> could provide a complete repro case!
>
> thanks
> -jochen
>
> On Thu, Nov 10, 2016 at 11:14 AM Kevin Read <obsid...@gmail.com
> <javascript:>> wrote:
>
>> Hi all,
>>
>> I'm in the process of porting my embedded v8 from a very old version to
>> current stable. I have this code that is called from JNI from a different
>> thread than the one that initially created the Isolate and the initial
>> context:
>>
>> v8::Locker l (isolate);
>> Isolate::Scope isolateScope(isolate);
>> Context::Scope
>> context_scope(*reinterpret_cast<Local<Context>*>(context->_context));
>>
>> HandleScope scope (isolate);
>> TryCatch trycatch;
>>
>> // Get pointers to persistent objects created by 'new
>> Persistent<T>(_local)'
>> WrapPersistentObj* wo = (WrapPersistentObj*)thisPtr;
>> Local<Object> thisObj = (*reinterpret_cast<Local<Object>*>(&wo->obj));
>> WrapPersistentFunc* ws = (WrapPersistentFunc*)jsCbPtr;
>> Local<Function> callbackP = Local<Function>::New(isolate,
>> *reinterpret_cast<Local<Function>*>(&ws->callbackFunc));
>> int argcount = 0;
>> Handle<Value> argarray[] = { };
>>
>> Handle<Value> result = callbackP->Call(thisObj, argcount, argarray);
>>
>> The Call method crashes with this message in debug build (doesn't crash
>> in release build):
>>
>> 11-10 12:08:25.665 32122 32162 v8 E #
>>
>> 11-10 12:08:25.665 32122 32162 v8 E # Fatal
>> error in ../../src/parsing/parser.cc, line 730
>>
>> 11-10 12:08:25.665 32122 32162 v8 E #
>>
>> 11-10 12:08:25.665 32122 32162 v8 E Check
>> failed: ThreadId::Current().Equals(info->isolate()->thread_id()).
>>
>> 11-10 12:08:25.665 32122 32162 v8 E #
>>
>> 11-10 12:08:25.667 32122 32162 libc F Fatal
>> signal 4 (SIGILL), code 1, fault addr 0x997d2f98 in tid 32162 (V8Engine)
>>
>> 11-10 12:08:25.670 271 271 W debuggerd:
>> handling request: pid=32122 uid=10116 gid=10116 tid=32162
>>
>> 11-10 12:08:25.704 32212 32212 DEBUG F *** ***
>> *** *** *** *** *** *** *** *** *** *** *** *** *** ***
>>
>>
>> All access to the Isolate in all parts of the app is protected by Locker
>> instances, so I'm not sure where this comes from.
>>
>>
>> Any help would be appreciated.
>>
>>
>> Thanks and best,
>>
>> Kevin
>>
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