This is caused by a syscall being blocked by the sandbox.
rdar://problem/56998930
Created attachment 383280 [details] Patch
The correct WebKit radar is: <rdar://problem/57079557>
Comment on attachment 383280 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=383280&action=review r=me > Source/WebKit/ChangeLog:5 > + <rdar://problem/56998930> Please use the correct radar: <rdar://problem/57079557>
Created attachment 383281 [details] Patch
Comment on attachment 383281 [details] Patch r=me
(In reply to Brent Fulgham from comment #6) > Comment on attachment 383281 [details] > Patch > > r=me Thanks for reviewing!
Comment on attachment 383281 [details] Patch Clearing flags on attachment: 383281 Committed r252333: <https://trac.webkit.org/changeset/252333>
All reviewed patches have been landed. Closing bug.