Bug 168259

Summary: asyncDisassembly crashes on iOS
Product: WebKit Reporter: Michael Saboff <msaboff>
Component: JavaScriptCoreAssignee: Michael Saboff <msaboff>
Status: RESOLVED FIXED    
Severity: Normal CC: commit-queue, keith_miller, mark.lam, saam
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch fpizlo: review+

Michael Saboff
Reported 2017-02-13 15:23:56 PST
It crashes with Bus Error right after emitting the jitWrite thunk. Looks like this is due to the mapping of the jitWrite thunk pages being changed to execute only immediately after generating and linking the code. With async disassembly, we can't read the code to disassemble. <rdar://problem/30124488>
Attachments
Patch (1.94 KB, patch)
2017-02-13 15:30 PST, Michael Saboff 		fpizlo: review+
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Michael Saboff
Comment 1 2017-02-13 15:30:24 PST
Created attachment 301401 [details] Patch
Michael Saboff
Comment 2 2017-02-13 17:10:31 PST
Committed r212262: <http://trac.webkit.org/changeset/212262>
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