Bug 236231

Summary: Regression: Streaming video in Safari (H264) errors in console, IOAccelFenceMachine::fence_timeout
Product: WebKit Reporter: Mehmet <mehmet.sahin>
Component: New BugsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: eric.carlson, jer.noble, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 15   
Hardware: Mac (Intel)   
OS: macOS 10.15   
Attachments:
Description Flags
Screenshot none

Description Mehmet 2022-02-07 05:16:55 PST
Created attachment 451082 [details]
Screenshot

iMac (21,5 - End 2012)
Safari Version 15.3 (15612.4.9.1.7, 15612)
macOS Catalina 10.15.7 (19H1713)

Steps to reproduce:
1.) Open Console app
2.) Open Safari
3.) Visit youtube.com
4.) Play any video
5.) Take a look in the console app

Actual: Many red kernel errors appear with:
problem	11:00:11.383614+0100	 kernel	void IOAccelFenceMachine::fence_timeout(IOTimerEventSource *): IntelAccelerator prodding blockFenceInterrupt

Expected: No errors

A screenshot is attached.

Thanks.
Comment 1 Radar WebKit Bug Importer 2022-02-14 05:17:15 PST
<rdar://problem/88899391>