Hello, While upgrading the v8 version -- I have replaced *platform->CallOnForegroundThread * with *platform->CallOnWorkerThread. *Could the "Fatal error in HandleScope::HandleScope # Entering the V8 API without proper locking in place" happen because of that?
Thanks On Tuesday, November 3, 2020 at 1:34:15 PM UTC+5:30 Vinayaka Kamath wrote: > Hello Ben, > > But I don't have an HandleScopes in my code -- neither in my > InspectorClient nor in my agent. The error seems to be getting raised from > v8::Utils::ApiCheck(). Do I need to set some flags in any of the changed > function prototypes in the new v8 version? or does any of the new functions > corresponding to the v8-inspector require a locker on isolate? Because the > exact same code doesn't crash with older versions of v8. > > Thanks > > On Tuesday, November 3, 2020 at 1:22:34 PM UTC+5:30 boi...@gmail.com > wrote: > >> Vinayaka, the answer is here in your console output. >> >> # Fatal error in HandleScope::HandleScope >> # Entering the V8 API without proper locking in place >> # >> >> You want to use v8::Locker consistently, pretty much wherever you have a >> HandleScope you need to instantiate a v8::Locker immediately before. >> >> Regards, >> Ben >> >> On Tue, 3 Nov 2020 at 16:46, Vinayaka Kamath <vinayak...@couchbase.com> >> wrote: >> >>> I have attached the stack trace from attaching the debugger to the >>> running program below: >>> >>> >>> https://drive.google.com/drive/folders/124iiIB682-vgbN5S0BPG2mR2DmUe32lc?usp=sharing >>> On Tuesday, November 3, 2020 at 10:49:21 AM UTC+5:30 Vinayaka Kamath >>> wrote: >>> >>>> Hello All, >>>> >>>> I am involved with a project that relies on v8 for most of its >>>> features. We are trying to upgrade the v8 engine to 8.5 and the project >>>> compiles without any error. >>>> >>>> We also have a debugger that uses inspector protocol -- however after >>>> the upgradation the debugger crashes when >>>> *session_->dispatchProtocolMessage(message); >>>> *is invoked. >>>> >>>> I am relatively new to v8 and don't understand it completely, however I >>>> noticed that the implementation of platform, return values of Set, Get >>>> were >>>> changed between the versions(and the corresponding changes are made). I >>>> don't see any changes with respect to the inspector -- I am afraid I am >>>> missing something here. >>>> >>>> You can find our project here: >>>> https://github.com/couchbase/eventing/tree/master/third_party/inspector >>>> >>>> Any help would be very much appreciated! >>>> >>>> The debugger crashes with the following message: >>>> ============================================== >>>> # Fatal error in HandleScope::HandleScope >>>> # Entering the V8 API without proper locking in place >>>> # >>>> == Minidump location: crash/cfecbc18-15f2-428d-a10256ac-40061e00.dmp >>>> Status: 1 == >>>> Failed to read from stderr pipe, err: EOF >>>> Failed to read from stdout pipe, err: EOF >>>> Exiting c++ debug worker with error: signal: illegal instruction >>>> =============================================== >>>> >>>> Also the symbols in the coredump (after conversion from minidump to >>>> coredump) is not getting resolved. I see ????? for line numbers and >>>> function names! >>>> >>>> -- >>> -- >>> v8-users mailing list >>> v8-u...@googlegroups.com >>> http://groups.google.com/group/v8-users >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "v8-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to v8-users+u...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/v8-users/6e4e4a0c-b446-471b-8076-04afb2b3f5cen%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/v8-users/6e4e4a0c-b446-471b-8076-04afb2b3f5cen%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-users/4ff83fb2-b15e-4a6c-b407-10dd47362568n%40googlegroups.com.
