[Webkit-unassigned] [Bug 173968] New: REGRESSION(r218896). ASSERT in WebPageProxy::dataCallback

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173968

            Bug ID: 173968
           Summary: REGRESSION(r218896). ASSERT in
                    WebPageProxy::dataCallback
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: Gtk, Regression
          Severity: Normal
          Priority: P2
         Component: Page Loading
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: achristensen at apple.com, beidson at apple.com,
                    bugs-noreply at webkitgtk.org

Several GTK+ unit tests are crashing because of this. The problem is that WebPageProxy::getLoadDecisionForIcon() sends 0 as callback ID when the decision is to not load the icon. Since r218896 we always notify the client even when the decision is not not load the icon, in which case the UI doesn't really expect a callback. When WebPageProxy::dataCallback is called with a 0 callback, CallbackMap::take crashes in RELEASE_ASSERT(callbackID).

1   0x7f3a21cf2c67 /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18(WTFCrash+0x17) [0x7f3a21cf2c67]
2   0x7f3a2366b09d /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit12WebPageProxy12dataCallbackERKN3IPC13DataReferenceEm+0x15d) [0x7f3a2366b09d]
3   0x7f3a2397d003 /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit12WebPageProxy17didReceiveMessageERN3IPC10ConnectionERNS1_7DecoderE+0x1d63) [0x7f3a2397d003]
4   0x7f3a235b0fc9 /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC18MessageReceiverMap15dispatchMessageERNS_10ConnectionERNS_7DecoderE+0x299) [0x7f3a235b0fc9]
5   0x7f3a23692002 /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit15WebProcessProxy17didReceiveMessageERN3IPC10ConnectionERNS1_7DecoderE+0x12) [0x7f3a23692002]
6   0x7f3a235ace8b /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC10Connection15dispatchMessageESt10unique_ptrINS_7DecoderESt14default_deleteIS2_EE+0x6b) [0x7f3a235ace8b]
7   0x7f3a235addbc /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC10Connection18dispatchOneMessageEv+0xec) [0x7f3a235addbc]
8   0x7f3a21d066dd /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18(_ZN3WTF7RunLoop11performWorkEv+0x18d) [0x7f3a21d066dd]
9   0x7f3a21d3c039 /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18(+0xe23039) [0x7f3a21d3c039]
10  0x7f3a26d0e5ca /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Root/lib/libglib-2.0.so.0(g_main_context_dispatch+0x13a) [0x7f3a26d0e5ca]
11  0x7f3a26d0e948 /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Root/lib/libglib-2.0.so.0(+0x49948) [0x7f3a26d0e948]
12  0x7f3a26d0ec62 /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Root/lib/libglib-2.0.so.0(g_main_loop_run+0xc2) [0x7f3a26d0ec62]
13  0x7f3a276c4623 ./Tools/gtk/../../WebKitBuild/Release/bin/TestWebKitAPI/WebKit2Gtk/TestResources(+0x8e5623) [0x7f3a276c4623]
14  0x7f3a26d34039 /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Root/lib/libglib-2.0.so.0(+0x6f039) [0x7f3a26d34039]
15  0x7f3a26d34207 /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Root/lib/libglib-2.0.so.0(+0x6f207) [0x7f3a26d34207]
16  0x7f3a26d34207 /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Root/lib/libglib-2.0.so.0(+0x6f207) [0x7f3a26d34207]
17  0x7f3a26d343fe /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Root/lib/libglib-2.0.so.0(g_test_run_suite+0xbe) [0x7f3a26d343fe]
18  0x7f3a26d34421 /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Root/lib/libglib-2.0.so.0(g_test_run+0x11) [0x7f3a26d34421]
19  0x7f3a276c2514 ./Tools/gtk/../../WebKitBuild/Release/bin/TestWebKitAPI/WebKit2Gtk/TestResources(main+0x114) [0x7f3a276c2514]
20  0x7f3a1b3222b1 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f3a1b3222b1]
21  0x7f3a276c2a8a ./Tools/gtk/../../WebKitBuild/Release/bin/TestWebKitAPI/WebKit2Gtk/TestResources(_start+0x2a) [0x7f3a276c2a8a]

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