Hi, we are going to remove the debug context soon-ish. However, if you are running into stack overflow when creating the debug context, chances are that you will run into stack overflow sooner or later elsewhere too.
Cheers, Yang On Thu, Nov 2, 2017 at 5:30 AM <anoop....@gmail.com> wrote: > Hi All, > This query was posted in v8-users earlier, but didn't attract any > comments. So, posting it here hoping to get a reply. > > Does anyone know why the variable *debug_context_* is used? > This is created when DevTools passes *{"id":7,"method":"Debugger.enable"}* > to the back-end. This is the call-stack : > > *v8.dll!v8::internal::Debug::Load() Line 471 C++* > * v8.dll!v8::internal::Debug::UpdateState() Line 2092 C++* > * v8.dll!v8::debug::SetDebugDelegate(v8::Isolate * v8_isolate, > v8::debug::DebugDelegate * delegate) Line 9641 C++* > * v8.dll!v8_inspector::V8Debugger::enable() Line 185 C++* > * v8.dll!v8_inspector::V8DebuggerAgentImpl::enableImpl() Line 210 C++* > * v8.dll!v8_inspector::V8DebuggerAgentImpl::enable() Line 228 C++* > * v8.dll!v8_inspector::protocol::Debugger::DispatcherImpl::enable(int > callId, > std::unique_ptr<v8_inspector::protocol::DictionaryValue,std::default_delete<v8_inspector::protocol::DictionaryValue> > > requestMessageObject, v8_inspector::protocol::ErrorSupport * errors) Line > 899 C++* > * v8.dll!v8_inspector::protocol::Debugger::DispatcherImpl::dispatch(int > callId, const v8_inspector::String16 & method, > std::unique_ptr<v8_inspector::protocol::DictionaryValue,std::default_delete<v8_inspector::protocol::DictionaryValue> > > messageObject) Line 890 C++* > * > v8.dll!v8_inspector::protocol::UberDispatcher::dispatch(std::unique_ptr<v8_inspector::protocol::Value,std::default_delete<v8_inspector::protocol::Value> > > parsedMessage) Line 813 C++* > * > v8.dll!v8_inspector::V8InspectorSessionImpl::dispatchProtocolMessage(const > v8_inspector::StringView & message) Line 343 C++* > *> SendDebugCommand::__l2::<lambda>(bool & flag) Line 192 C++* > * [External Code] * > * ProcessQueue() Line 149 C++* > * [External Code] * > > Already I have entered my local context scope when the json command is > sent to v8_inspector. Most of the time, the context creation above is > success and everything works fine. But sometimes, the stack overflow check > for the isolate fails inside *v8.dll!v8::internal::Genesis::Genesis()*, > which fails to update *m_debuggerContext *variable in > *v8.dll!v8_inspector::V8Debugger::enable()* and crashes with c0000005 > when it tries to enter into scope of a null context in function > *v8.dll!v8_inspector::V8Debugger::compileDebuggerScript()* and makes my > application crash. > > This behaviour is sporadic. Sometimes the debugger works fine for hours > before crashing, sometimes it works for 2-3 invocations and fails. Does > anyone has any idea on this behaviour? Please reply if more details are > needed. > > Thanks, > Anoop R. S. > > -- > -- > v8-dev mailing list > v8-dev@googlegroups.com > http://groups.google.com/group/v8-dev > --- > You received this message because you are subscribed to the Google Groups > "v8-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to v8-dev+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- * • * *Yang Guo** • **Google Germany GmbH* * • *Erika-Mann-Str. 33 * • *80636 Munich • yang...@google.com Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg Diese E-Mail ist vertraulich. Wenn Sie nicht der richtige Adressat sind, leiten Sie diese bitte nicht weiter, informieren Sie den Absender und löschen Sie die E-Mail und alle Anhänge. Vielen Dank. This e-mail is confidential. If you are not the right addressee please do not forward it, please inform the sender, and please erase this e-mail including any attachments. Thanks. -- -- v8-dev mailing list v8-dev@googlegroups.com http://groups.google.com/group/v8-dev --- You received this message because you are subscribed to the Google Groups "v8-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-dev+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.