Bug 237947 - WebContent process hang sometimes
Summary: WebContent process hang sometimes
Status: RESOLVED INVALID
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: WebKit Local Build
Hardware: Mac (Intel) macOS 11
: P2 Blocker
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2022-03-16 01:10 PDT by Peter Xu
Modified: 2022-03-16 14:05 PDT (History)
3 users (show)

See Also:

Attachments
The sample of the hanged Webcontent process (98.42 KB, text/plain)
2022-03-16 01:10 PDT, Peter Xu 		no flags Details
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Description Peter Xu 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.
Comment 1 Radar WebKit Bug Importer 2022-03-16 05:39:40 PDT 
<rdar://problem/90364865>
Comment 2 Alexey Proskuryakov 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?