[Webkit-unassigned] [Bug 167003] New: ASSERTION FAILED: isMainThread() in WebCore::BuiltinResourceHandleConstructorMap& WebCore::builtinResourceHandleConstructorMap()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=167003

            Bug ID: 167003
           Summary: ASSERTION FAILED: isMainThread() in
                    WebCore::BuiltinResourceHandleConstructorMap&
                    WebCore::builtinResourceHandleConstructorMap()
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: bugs-noreply at webkitgtk.org

Seeing this error very frequently after with WebKit trunk from the last day or two. I'm pretty sure it's a very recent regression:

ASSERTION FAILED: isMainThread()
../../Source/WebCore/platform/network/ResourceHandle.cpp(51) : WebCore::BuiltinResourceHandleConstructorMap& WebCore::builtinResourceHandleConstructorMap()
1   0x7f5fe9ebcdc2 /home/mcatanzaro/Projects/GNOME/install/lib/libjavascriptcoregtk-4.0.so.18(WTFCrash+0x1e) [0x7f5fe9ebcdc2]
2   0x7f5ff3509a87 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(+0x669ba87) [0x7f5ff3509a87]
3   0x7f5ff3509dfe /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore14ResourceHandle6createEPNS_17NetworkingContextERKNS_15ResourceRequestEPNS_20ResourceHandleClientEbb+0x82) [0x7f5ff3509dfe]
4   0x7f5ff3bb922d /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(+0x6d4b22d) [0x7f5ff3bb922d]
5   0x7f5ff3bbb9b8 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(+0x6d4d9b8) [0x7f5ff3bbb9b8]
6   0x7f5ff1da9f2e /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZNKSt8functionIFvvEEclEv+0x32) [0x7f5ff1da9f2e]
7   0x7f5fe9ede4cc /home/mcatanzaro/Projects/GNOME/install/lib/libjavascriptcoregtk-4.0.so.18(+0x24b84cc) [0x7f5fe9ede4cc]
8   0x7f5fe9f1d822 /home/mcatanzaro/Projects/GNOME/install/lib/libjavascriptcoregtk-4.0.so.18(+0x24f7822) [0x7f5fe9f1d822]
9   0x7f5fe57166ca /lib64/libpthread.so.0(+0x76ca) [0x7f5fe57166ca]
10  0x7f5fdeaaef7f /lib64/libc.so.6(clone+0x5f) [0x7f5fdeaaef7f]

Sorry I don't have a good backtrace. :/ ResourceHandle::create must only be called from the main thread, but it is clearly being called from a secondary thread. Unfortunately this crap backtrace does not show from where. :/

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