196890 2019-04-12 18:26:42 -0700 Web Inspector: Heap: don't use recursion when calculating root paths 2019-04-15 16:49:10 -0700 1 1 1 Unclassified WebKit Web Inspector WebKit Nightly Build All All RESOLVED FIXED InRadar P2 Normal --- 1 hi hi commit-queue hi inspector-bugzilla-changes joepeck webkit-bug-importer oldest_to_newest 1526972 0 hi 2019-04-12 18:26:42 -0700 If a path is extremely deep, it can cause a stack overflow. 1526975 1 webkit-bug-importer 2019-04-12 18:28:46 -0700 <rdar://problem/49870751> 1526976 2 367366 hi 2019-04-12 18:30:30 -0700 Created attachment 367366 Patch 1527272 3 367366 joepeck 2019-04-15 11:18:04 -0700 Comment on attachment 367366 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=367366&action=review r=me > Source/WebInspectorUI/UserInterface/Workers/HeapSnapshot/HeapSnapshot.js:756 > + for (let i = 0; i < stack.length; ++i) { > + let {currentPath, nodeOrdinal} = stack[i]; This list is not being treated as a stack. In fact it is always growing because nothing nothing is ever removed. Normally when we have a stack approach like this we process it to exhaustion like this: let stack = [{...entry...}]; while (stack.length) { let entry = stack.pop(); // Process entry, maybe push new stack entries. } Which I think could be done here as long as you convert these two lines to: while (stack.length) { let {currentPath, nodeOridinal} = stack.pop(); ... That said, items are going to be processes on the stack in reverse order... so to get unchanging output you could iterate the edges in forward order such as: while (stack.length) { let {currentPath, nodeOridinal} = stack.unshift(); ... That should get you output that is consistent with the current code. 1527423 4 367460 hi 2019-04-15 14:35:21 -0700 Created attachment 367460 Patch 1527513 5 367460 commit-queue 2019-04-15 16:49:09 -0700 Comment on attachment 367460 Patch Clearing flags on attachment: 367460 Committed r244308: <https://trac.webkit.org/changeset/244308> 1527514 6 commit-queue 2019-04-15 16:49:10 -0700 All reviewed patches have been landed. Closing bug. 367366 2019-04-12 18:30:30 -0700 2019-04-15 14:35:20 -0700 Patch 196890.diff text/plain 3861 hi ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJJbnNwZWN0b3JVSS9DaGFuZ2VMb2cgYi9Tb3VyY2UvV2Vi SW5zcGVjdG9yVUkvQ2hhbmdlTG9nCmluZGV4IDkzODM1NTE2MTc2Li5kZDJjMzQ1ZjBjMiAxMDA2 NDQKLS0tIGEvU291cmNlL1dlYkluc3BlY3RvclVJL0NoYW5nZUxvZworKysgYi9Tb3VyY2UvV2Vi SW5zcGVjdG9yVUkvQ2hhbmdlTG9nCkBAIC0xLDMgKzEsMTcgQEAKKzIwMTktMDQtMTIgIERldmlu IFJvdXNzbyAgPGRyb3Vzc29AYXBwbGUuY29tPgorCisgICAgICAgIFdlYiBJbnNwZWN0b3I6IEhl YXA6IGRvbid0IHVzZSByZWN1cnNpb24gd2hlbiBjYWxjdWxhdGluZyByb290IHBhdGhzCisgICAg ICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xOTY4OTAKKyAgICAg ICAgPHJkYXI6Ly9wcm9ibGVtLzQ5ODcwNzUxPgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9E WSAoT09QUyEpLgorCisgICAgICAgICogVXNlckludGVyZmFjZS9Xb3JrZXJzL0hlYXBTbmFwc2hv dC9IZWFwU25hcHNob3QuanM6CisgICAgICAgIChIZWFwU25hcHNob3QucHJvdG90eXBlLnNob3J0 ZXN0R0NSb290UGF0aCk6CisgICAgICAgIChIZWFwU25hcHNob3QucHJvdG90eXBlLl9kZXRlcm1p 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