203837 2019-11-04 19:28:54 -0800 Adding logging to diagnose crashes resulting from provisional document loader unexpectedly being nullptr 2026-03-29 04:41:33 -0700 1 1 1 Unclassified WebKit Page Loading WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=311020 InRadar P2 Normal --- 1 rniwa rniwa achristensen beidson cdumez dbates ews-watchlist ggaren japhet webkit-bug-importer oldest_to_newest 1587272 0 rniwa 2019-11-04 19:28:54 -0800 We're getting nullptr crashes in various loader code where the provisional document loader unexpectedly is nullptr. e.g. 0 com.apple.WebKit 0x0000000108f75a75 WebKit::WebFrameLoaderClient::dispatchDidChangeProvisionalURL() + 67 1 com.apple.WebCore 0x000000010ae9c909 WebCore::DocumentLoader::willSendRequest(WebCore::ResourceRequest&&, WebCore::ResourceResponse const&, WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&) + 1465 2 com.apple.WebCore 0x000000010ae9cc46 non-virtual thunk to WebCore::DocumentLoader::redirectReceived(WebCore::CachedResource&, WebCore::ResourceRequest&&, WebCore::ResourceResponse const&, WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&) + 118 3 com.apple.WebCore 0x000000010af10391 WebCore::iterateClients(WebCore::CachedResourceClientWalker<WebCore::CachedRawResourceClient>&&, WebCore::CachedResourceHandle<WebCore::CachedRawResource>&&, WebCore::ResourceRequest&&, std::__1::unique_ptr<WebCore::ResourceResponse, std::__1::default_delete<WebCore::ResourceResponse> >&&, WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&) + 433 4 com.apple.WebCore 0x000000010af10055 WebCore::CachedRawResource::redirectReceived(WebCore::ResourceRequest&&, WebCore::ResourceResponse const&, WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&) + 1285 5 com.apple.WebCore 0x000000010aee7cae WebCore::SubresourceLoader::willSendRequestInternal(WebCore::ResourceRequest&&, WebCore::ResourceResponse const&, WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&) + 4126 6 com.apple.WebKit 0x0000000108f4796f WebKit::WebResourceLoader::willSendRequest(WebCore::ResourceRequest&&, WebCore::ResourceResponse&&) + 457 7 com.apple.WebKit 0x000000010907df17 WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&, IPC::Decoder&) + 423 8 com.apple.WebKit 0x0000000108f4184c WebKit::NetworkProcessConnection::didReceiveMessage(IPC::Connection&, IPC::Decoder&) + 702 9 com.apple.WebKit 0x0000000108b9bac2 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) + 164 10 com.apple.WebKit 0x0000000108b9efff IPC::Connection::dispatchOneIncomingMessage() + 189 11 com.apple.JavaScriptCore 0x000000010d289057 WTF::RunLoop::performWork() + 231 1587280 1 382799 rniwa 2019-11-04 19:42:54 -0800 Created attachment 382799 Adds logging 1587287 2 webkit-bug-importer 2019-11-04 19:49:51 -0800 <rdar://problem/56891110> 1587443 3 382799 ggaren 2019-11-05 10:16:17 -0800 Comment on attachment 382799 Adds logging r=me 1587527 4 rniwa 2019-11-05 13:47:22 -0800 Committed r252077: <https://trac.webkit.org/changeset/252077> 382799 2019-11-04 19:42:54 -0800 2019-11-05 10:16:17 -0800 Adds logging bug-203837-20191104194253.patch text/plain 7224 rniwa SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDI1MjAzNCkKKysrIFNvdXJjZS9XZWJDb3JlL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDI2IEBACisyMDE5LTExLTA0ICBSeW9zdWtl IE5pd2EgIDxybml3YUB3ZWJraXQub3JnPgorCisgICAgICAgIEFkZGluZyBsb2dnaW5nIHRvIGRp YWdub3NlIGNyYXNoZXMgcmVzdWx0aW5nIGZyb20gcHJvdmlzaW9uYWwgZG9jdW1lbnQgbG9hZGVy IHVuZXhwZWN0ZWRseSBiZWluZyBudWxscHRyCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQu b3JnL3Nob3dfYnVnLmNnaT9pZD0yMDM4MzcKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkg KE9PUFMhKS4KKworICAgICAgICBBZGRlZCB2YXJpb3VzIGxvZ2dpbmcgZm9yIERvY3VtZW50TG9h 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