169882 2017-03-20 11:19:33 -0700 WebAssembly: allocate no more than 4GiB for Signaling memory 2017-04-07 17:13:38 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 170628 https://bugs.webkit.org/show_bug.cgi?id=170628 P2 Normal --- 159775 1 jfbastien webkit-unassigned fpizlo jfbastien keith_miller mark.lam msaboff saam oldest_to_newest 1289512 0 jfbastien 2017-03-20 11:19:33 -0700 We currently virtually allocate 8GiB because odd corner cases potentially allow accesses to go above 4GiB. Those would always trap, so we need the memory to be mapped. This lowers the number of "fast" signaling memory we can allocate, it would be better to figure out which accesses could go above 4GiB, bounds check those, and all the other ones can stay entirely unchecked. Note: maybe we want 4GiB + some small redzone for small offsets. 1295561 1 jfbastien 2017-04-07 17:13:38 -0700 *** This bug has been marked as a duplicate of bug 170628 ***