Bug 258330

Summary:	REGRESSION (265125@main): Crash in content process after manually killing the GPU process
Product:	WebKit	Reporter:	Simon Fraser (smfr) <simon.fraser>
Component:	WebKit Process Model	Assignee:	Simon Fraser (smfr) <simon.fraser>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari 16
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:
Bug Blocks:	258793

Description Simon Fraser (smfr) 2023-06-20 16:17:29 PDT

Killing the GPU process can result in a crash in `RemoteRenderingBackendProxy::prepareBuffersForDisplay()` because the IPC error is noErrr, but we don't have sendResult.replyArguments.

Comment 1 Simon Fraser (smfr) 2023-06-20 16:20:54 PDT

<rdar://110998883>

Comment 2 Simon Fraser (smfr) 2023-06-20 16:38:25 PDT

Pull request: https://github.com/WebKit/WebKit/pull/15121

Comment 3 EWS 2023-06-21 17:19:41 PDT

Committed 265382@main (cda93437a8a8): <https://commits.webkit.org/265382@main>

Reviewed commits have been landed. Closing PR #15121 and removing active labels.