Bug 260667

Summary:	WindowEventLoop can infinite loop trying to run idle callback in suspended pages
Product:	WebKit	Reporter:	Ryosuke Niwa <rniwa>
Component:	DOM	Assignee:	Ryosuke Niwa <rniwa>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari Technology Preview
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:
Bug Blocks:	164193

Description Ryosuke Niwa 2023-08-24 11:06:09 PDT

WindowEventLoop::didReachTimeToRun schedules itself again when an idle callback is scheduled but we didn't have enough time to run it.
This logic can infinite loop when the timer never fires because the document has been suspended.

Comment 1 Ryosuke Niwa 2023-08-24 11:06:40 PDT

<rdar://114384740>

Comment 2 Ryosuke Niwa 2023-08-24 11:11:19 PDT

Pull request: https://github.com/WebKit/WebKit/pull/17027

Comment 3 EWS 2023-08-24 14:24:45 PDT

Committed 267246@main (5033809fcf70): <https://commits.webkit.org/267246@main>

Reviewed commits have been landed. Closing PR #17027 and removing active labels.