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      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [GTK] TestWebKitWebContext is crashing on debug builds"
   href="https://bugs.webkit.org/show_bug.cgi?id=144508">144508</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[GTK] TestWebKitWebContext is crashing on debug builds
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>528+ (Nightly build)
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Tools / Tests
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mario&#64;webkit.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>cgarcia&#64;igalia.com, mrobinson&#64;webkit.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>At the moment, the TestWebKitWebContext test suite is crashing on the GTK+ Debug but due to a problem caused by the URISchemeTest test suite:
<a href="https://build.webkit.org/builders/GTK%20Linux%2064-bit%20Debug%20%28Tests%29/builds/4430/steps/API%20tests/logs/stdio">https://build.webkit.org/builders/GTK%20Linux%2064-bit%20Debug%20%28Tests%29/builds/4430/steps/API%20tests/logs/stdio</a>

I reproduced the very same error locally, and this is the backtrace I got:

ASSERTION FAILED: m_table
../../Source/WTF/wtf/HashTable.h(210) : void WTF::HashTableConstIterator&lt;Key, Value, Extractor, HashFunctions, Traits, KeyTraits&gt;::checkValidity() const [with Key = WebCore::FrameDestructionObserver*; Value = WebCore::FrameDestructionObserver*; Extractor = WTF::IdentityExtractor; HashFunctions = WTF::PtrHash&lt;WebCore::FrameDestructionObserver*&gt;; Traits = WTF::HashTraits&lt;WebCore::FrameDestructionObserver*&gt;; KeyTraits = WTF::HashTraits&lt;WebCore::FrameDestructionObserver*&gt;]
1   0x7f64062f50b9 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libjavascriptcoregtk-4.0.so.18(WTFCrash+0x1e) [0x7f64062f50b9]
2   0x7f640c548dfb /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZNK3WTF22HashTableConstIteratorIPN7WebCore24FrameDestructionObserverES3_NS_17IdentityExtractorENS_7PtrHashIS3_EENS_10HashTraitsIS3_EES8_E13checkValidityEv+0x3d) [0x7f640c548dfb]
3   0x7f640c54829c /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3WTF22HashTableConstIteratorIPN7WebCore24FrameDestructionObserverES3_NS_17IdentityExtractorENS_7PtrHashIS3_EENS_10HashTraitsIS3_EES8_EppEv+0x18) [0x7f640c54829c]
4   0x7f640c546ea8 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3WTF29HashTableConstIteratorAdapterINS_9HashTableIPN7WebCore24FrameDestructionObserverES4_NS_17IdentityExtractorENS_7PtrHashIS4_EENS_10HashTraitsIS4_EES9_EES4_EppEv+0x18) [0x7f640c546ea8]
5   0x7f640c5448e8 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore5Frame14willDetachPageEv+0xc4) [0x7f640c5448e8]
6   0x7f640c400392 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore11FrameLoader16detachFromParentEv+0x142) [0x7f640c400392]
7   0x7f640b88662e /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit7WebPage5closeEv+0x3c2) [0x7f640b88662e]
8   0x7f640ba44994 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC22callMemberFunctionImplIN6WebKit7WebPageEMS2_FvvESt5tupleIJEEJEEEvPT_T0_OT1_St14index_sequenceIJXspT2_EEE+0x65) [0x7f640ba44994]
9   0x7f640ba42a7c /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC18callMemberFunctionIN6WebKit7WebPageEMS2_FvvESt5tupleIIEESt19make_index_sequenceILm0EEEEvOT1_PT_T0_+0x41) [0x7f640ba42a7c]
10  0x7f640ba3ed5a /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC13handleMessageIN8Messages7WebPage5CloseEN6WebKit7WebPageEMS5_FvvEEEvRNS_14MessageDecoderEPT0_T1_+0x8f) [0x7f640ba3ed5a]
11  0x7f640ba39194 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit7WebPage24didReceiveWebPageMessageERN3IPC10ConnectionERNS1_14MessageDecoderE+0x1eba) [0x7f640ba39194]
12  0x7f640b89100f /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit7WebPage17didReceiveMessageERN3IPC10ConnectionERNS1_14MessageDecoderE+0x185) [0x7f640b89100f]
13  0x7f640b5252f8 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC18MessageReceiverMap15dispatchMessageERNS_10ConnectionERNS_14MessageDecoderE+0x120) [0x7f640b5252f8]
14  0x7f640b750870 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit10WebProcess17didReceiveMessageERN3IPC10ConnectionERNS1_14MessageDecoderE+0x4c) [0x7f640b750870]
15  0x7f640b5130f0 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC10Connection15dispatchMessageERNS_14MessageDecoderE+0x3a) [0x7f640b5130f0]
16  0x7f640b5131bc /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC10Connection15dispatchMessageESt10unique_ptrINS_14MessageDecoderESt14default_deleteIS2_EE+0xca) [0x7f640b5131bc]
17  0x7f640b51337f /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC10Connection18dispatchOneMessageEv+0xcd) [0x7f640b51337f]
18  0x7f640b512f36 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0x4252f36) [0x7f640b512f36]
19  0x7f640b5144fe /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0x42544fe) [0x7f640b5144fe]
20  0x7f640b52dac4 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZNKSt8functionIFvvEEclEv+0x32) [0x7f640b52dac4]
21  0x7f640d4b6be9 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3WTF7RunLoop11performWorkEv+0xdb) [0x7f640d4b6be9]
22  0x7f640d4ba712 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0x61fa712) [0x7f640d4ba712]
23  0x7f640d4bac9a /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0x61fac9a) [0x7f640d4bac9a]
24  0x7f640b52dac4 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZNKSt8functionIFvvEEclEv+0x32) [0x7f640b52dac4]
25  0x7f640634106f /home/mario/work/WebKit/WebKitBuild/Debug/lib/libjavascriptcoregtk-4.0.so.18(_ZN3WTF15GMainLoopSource12voidCallbackEv+0x6d) [0x7f640634106f]
26  0x7f6406341773 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libjavascriptcoregtk-4.0.so.18(_ZN3WTF15GMainLoopSource18voidSourceCallbackEPS0_+0x23) [0x7f6406341773]
27  0x7f6401ee458d /home/mario/work/WebKit/WebKitBuild/DependenciesGTK/Root/lib64/libglib-2.0.so.0(g_main_context_dispatch+0x13d) [0x7f6401ee458d]
28  0x7f6401ee4928 /home/mario/work/WebKit/WebKitBuild/DependenciesGTK/Root/lib64/libglib-2.0.so.0(+0x48928) [0x7f6401ee4928]
29  0x7f6401ee4c42 /home/mario/work/WebKit/WebKitBuild/DependenciesGTK/Root/lib64/libglib-2.0.so.0(g_main_loop_run+0xc2) [0x7f6401ee4c42]
30  0x7f640d4ba48c /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN3WTF7RunLoop3runEv+0x42) [0x7f640d4ba48c]
31  0x7f640b9b4b06 /home/mario/work/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit16ChildProcessMainINS_10WebProcessENS_14WebProcessMainEEEiiPPc+0x82) [0x7f640b9b4b06]</pre>
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