Version: 55.0.2846.0 Canary
OS: macOS 10.11.6 (also seen on Sierra betas)

What steps will reproduce the problem?
(1) Browse for less than 5 minutes

What is the expected output?

Expect the browser to continue to run.


What do you see instead?

Browser process crashes quickly inside the BrowserWatchdog thread. See attached crash log.

I saw this on the Sierra betas along with a warning to the Terminal that a __weak_ref was corrupted, or used after release -- didn't gather that information, but will try to do so after filing this. Then saw the same crash on 10.11.6, so filing it more generally.

 

Deleted: browser-watchdog-crash.txt 92.2 KB

browser-watchdog-crash.txt 92.2 KB View Download