The initial report came from twitter post https://twitter.com/simevidas/status/861677147689299968

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I’m attaching the profile that corresponds to that screenshot. 

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Profile-20170508T224810.json 6.8 MB View Download

The timestamps for CPU profile are off by +20sec for some reason.

> events[events.length - 1].args.data.cpuProfile.startTime / 1000
671590819.569
> events[events.length - 2].startTime
671570025

I'm seeing a similar issue - JS Profiles show frame drops, and I see "Function Call" (with no link) or "Run Microtasks" (again with no link) with a large self time.

I'd really like to know where these are coming from :-(

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	Screenshot from 2017-07-04 20-38-08.png 78.3 KB View Download

@hayden
Can you repro it or was it a one time glitch?

I've seen this a number of times with my application.

I'll try and find some time to put together a minimal application to reproduce it, but that may be a little while :-(

In case it helps, I'm running Fedora 25 and Chrome Version 61.0.3141.7 (Official Build) dev (64-bit)

Please feel free to reopen it if it fails again. Hopefully it is fixed.