Vladan Djeric (:vladan) Reporter
	Description • 9 years ago

My Nightly 43 on Win7 suddenly started scrolling in an odd fashion. I would try to scroll a page with the mousewheel, but nothing would happen for a split second, and after that split-second, the page would suddenly scroll. This happened on a variety of pages, and dissapeared after a restart.

Other operations in the browser were responsive. I captured a profile but it did not show any performance problems and the frame-rate graph looked very healthy. Benoit believes this bug might be an APZ correctness issue.

Once I restarted the browser, the problem went away.

See attached video. I reproduced this on GMail, Bugzilla, Reddit, etc but all during that one browser session.

	Vladan Djeric (:vladan) Reporter
	Comment 1 • 9 years ago

I'm seeing this behaviour again (after a restart)

	Kartikaya Gupta (email:kats@mozilla.staktrace.com)
	Comment 2 • 9 years ago

For now I'm assuming this is the same as bug 1160540; if you still see this after that is fixed we can investigate.

	Vladan Djeric (:vladan) Reporter
	Comment 3 • 9 years ago

The issue hasn't reproduced in a while so marking this bug resolved