200686 2019-08-13 13:04:00 -0700 REGRESSION (iPad OS 13 beta): Non-trivially sized wasm applications crash Safari 2020-01-15 17:39:08 -0800 1 1 1 Unclassified WebKit WebAssembly Other iPhone / iPad Other RESOLVED DUPLICATE 200807 https://bugs.webkit.org/show_bug.cgi?id=200807 InRadar P2 Blocker --- 1 walter webkit-unassigned evan.exe fpizlo keith_miller mark.lam m saam webkit-bug-importer ysuzuki oldest_to_newest 1560921 0 walter 2019-08-13 13:04:00 -0700 Essentially a regression on the partial fix for https://bugs.webkit.org/show_bug.cgi?id=181723 (Unhandled Promise Rejection: Error: Out of executable memory in function at index) To reproduce with any beta of iPad OS 13: 1) Navigate with Safari to https://simulations.kognito.com/changetalk/dev 2) Notice the compiler crash immediately when attempting to load For clarity, iOS 12.2, 12.3, 12.4 all function correctly. Any version *before* 12.2 will result in the same error that currently happens in iPad OS 13. Let me know if there's any other information or test case you need from me. 1560966 1 webkit-bug-importer 2019-08-13 14:55:15 -0700 <rdar://problem/54275409> 1564766 2 walter 2019-08-23 21:41:16 -0700 Hello, Just wanted to add that I got around to installing iOS 13 beta (version 8) on my iPhone X and the regression exists there too. I'm sure not too surprising, but just thought I'd share for clarity's sake. 1565346 3 saam 2019-08-27 08:25:31 -0700 Thanks for letting us know. We’re actively working on making JSC use less executable memory for Wasm in ToT WebKit. 1567627 4 ap 2019-09-03 20:40:44 -0700 This issue should be fixed via bug 200807, sorry for the forward dupe. *** This bug has been marked as a duplicate of bug 200807 ***