Bug 237947

Summary: WebContent process hang sometimes
Product: WebKit Reporter: Peter Xu <foolpermi>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Blocker CC: ap, jer.noble, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Local Build   
Hardware: Mac (Intel)   
OS: macOS 11   
Attachments:
Description Flags
The sample of the hanged Webcontent process none

Peter Xu
Reported 2022-03-16 01:10:48 PDT
Created attachment 454808 [details] The sample of the hanged Webcontent process [macOS] The WebContent process hangs sometimes when calling an unknown function, the sample is attached.
Attachments
The sample of the hanged Webcontent process (98.42 KB, text/plain)
2022-03-16 01:10 PDT, Peter Xu 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2022-03-16 05:39:40 PDT
<rdar://problem/90364865>
Alexey Proskuryakov
Comment 2 2022-03-16 14:05:10 PDT
The hang is in waiting on something outside WebKit: 2821 ??? (in AppleGVA) load address 0x7fff4e9ed000 + 0x3f205 [0x7fff4ea2c205] 2821 ??? (in AppleIntelICLGraphicsVADriver) load address 0x118167000 + 0x16dd9 [0x11817ddd9] 2821 AVD_CreateAVDAccelerator (in AppleIntelICLLPGraphicsVAME) + 1490 [0x117b7624e] 2821 IOServiceOpen (in IOKit) + 39 [0x7fff22c8b395] 2821 io_service_open_extended (in IOKit) + 137 [0x7fff22c8b438] It's not actionable based on the stack trace alone, and also is very unlikely too be a WebKit bug. Could you please file a report with a sysdiagnose at https://feedbackassistant.apple.com for Apple engineers to look into?
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