UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.110 Safari/537.36

Steps to reproduce the problem:
0. Use W10 x64 (On this particular machine? Not happening on others.)
1. Visit affected site - short list includes hangouts.google.com, mail.google.com, www.facebook.com, www.gfycat.com, private Outlook Web App (Exchange 2010) when playing sound, others.
2. Attempt to use website - may work for ~5 seconds
3. Observe as page stops responding. Cursor can still be moved, though hovering over any point on the page shows the same cursor. Also, reload/back/forward/stop/etc. don't have any effect.
4. "Page Unresponsive" modal appears, prompting to kill affected tab.

What is the expected behavior?
That the page work correctly? Not sure if there's anything else to show here.

What went wrong?
Affected page crashes, no change in animations/sound/etc.

Crashed report ID: 3f23190000000000, cb14697800000000, 5fea660c00000000, 6582297800000000, b264660c00000000

How much crashed? Just one tab

Is it a problem with a plugin? N/A 

Did this work before? Yes Not sure - some point prior to 47.0.2526.111 (x86, transitioned to x64 later, still affected)

Chrome version: 49.0.2623.110  Channel: stable
OS Version: 10.0
Flash Version: Shockwave Flash 21.0 r0

This bug was previously filed under 577786 (possibly closed as WontFix due to misidentification), for a different major version. The behavior is still seen as of the reported version. I've attached a trace from chrome://tracing, with memory-infra selected, as per suggestions in the previous report. reveman@chromium.org suggested a new bug be filed.

Note that I've had issues with Flash in the past, and that it seems as if the two issues might be related. When Flash would crash, it would do so in much the same fashion as I mentioned. Additionally, sometimes, Flash will work for a limited amount of time, then later stop working - similar to the bug I've filed.
 

Deleted: trace.json.gz 8.8 MB

trace.json.gz 8.8 MB Download