Sounds like a bug to me. I opened https://crbug.com/v8/6774 for you, please
feel free to CC yourself there.

Also, a repro would be very helpful if you could provide one.

Thanks!
Jakob

On Thu, Aug 31, 2017 at 3:12 AM, 'Kenton Varda' via v8-users <
v8-users@googlegroups.com> wrote:

> Hi v8-users,
>
> I have an application in which I use TerminateExecution() from another
> thread to kill off scripts that run for too long.
>
> Normally this works great, but when I have a v8 inspector session
> attached, it seems very unhappy with this situation. In particular, the
> process commonly aborts with:
>
> #
> # Fatal error in ../../src/builtins/builtins-console.cc, line 53
> # Check failed: !isolate->has_scheduled_exception().
> #
>
> It looks like the first console.log() after the inspector connects can in
> fact take tens of milliseconds (at least in debug mode), frequently
> triggering timeouts.
>
> This is unfortunate as it makes it pretty easy for a malicious script to
> take down the process -- something that my TerminateExecution() was
> explicitly trying to defend against.
>
> Is this:
> a) A bug in the inspector?
> b) An unsupported use case?
> c) Me doing something wrong in my setup?
>
> Thanks,
> -Kenton
>
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