204923 2019-12-05 14:52:45 -0800 Web Inspector: evaluating alert(1) while staying on debugger in inline script triggers assertion in debug build 2019-12-05 14:53:57 -0800 1 1 1 Unclassified WebKit Web Inspector WebKit Nightly Build All All NEW P2 Normal --- 1 yurys yurys inspector-bugzilla-changes oldest_to_newest 1596029 0 384962 yurys 2019-12-05 14:52:45 -0800 Created attachment 384962 Test page Steps to reproduce with debug build: 1. Open inspector on the attached page. 2. Reload the page, wait for pause on debugger; statement. 3. Evaluate 'alert(1)' in the console. Result: Inspected WebProcess crashes with the following trace ../../Source/WebCore/dom/ScriptExecutionContext.cpp(257) : virtual void WebCore::ScriptExecutionContext::suspendActiveDOMObjects(WebCore::ReasonForSuspension) 1 0x7fac696b1959 /home/yurys/WebKit/WebKitBuild/Debug/lib/libjavascriptcoregtk-4.0.so.18(WTFCrash+0x9) [0x7fac696b1959] 2 0x7fac7415a75b /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0x94fb75b) [0x7fac7415a75b] 3 0x7fac76e2d189 /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore22ScriptExecutionContext23suspendActiveDOMObjectsENS_19ReasonForSuspensionE+0x89) [0x7fac76e2d189] 4 0x7fac76c8e6d4 /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore8Document23suspendActiveDOMObjectsENS_19ReasonForSuspensionE+0x64) [0x7fac76c8e6d4] 5 0x7fac76c8cdc9 /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore8Document21suspendScheduledTasksENS_19ReasonForSuspensionE+0xa9) [0x7fac76c8cdc9] 6 0x7fac7776f0f3 /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore21PageGroupLoadDeferrerC2ERNS_4PageEb+0x133) [0x7fac7776f0f3] 7 0x7fac77656ecc /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore6Chrome18runJavaScriptAlertERNS_5FrameERKN3WTF6StringE+0x3c) [0x7fac77656ecc] 8 0x7fac7766f90f /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore9DOMWindow5alertERKN3WTF6StringE+0x11f) [0x7fac7766f90f] 9 0x7fac754f71ba /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0xa8981ba) [0x7fac754f71ba] 10 0x7fac754f6fe7 /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0xa897fe7) [0x7fac754f6fe7] 11 0x7fac754aa6ff /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0xa84b6ff) [0x7fac754aa6ff] 12 0x7fac754aa3e4 /home/yurys/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore32jsDOMWindowInstanceFunctionAlertEPN3JSC14JSGlobalObjectEPNS0_9CallFrameE+0x24) [0x7fac754aa3e4] 13 0x7fac07fff16b [0x7fac07fff16b] 384962 2019-12-05 14:52:45 -0800 2019-12-05 14:52:45 -0800 Test page inline-debugger.html text/html 586 yurys PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8aGVhZD4KPHRpdGxlPmJyb3duIGJnPC90aXRsZT4KPG1l dGEgbmFtZT0idmlld3BvcnQiIGNvbnRlbnQ9IndpZHRoPTEwMCxpbml0aWFsLXNjYWxlPTEiPgo8 c3R5bGU+CmJvZHkgewogIGJhY2tncm91bmQtY29sb3I6IGdyZXkKfQo8L3N0eWxlPgo8c2NyaXB0 Pgpjb25zb2xlLmxvZygnYmVmb3JlJyk7CmRlYnVnZ2VyOwpjb25zb2xlLmxvZygnYWZ0ZXInKTsK CmZ1bmN0aW9uIGJ0bkNsaWNrKCkgewogIGNvbnNvbGUubG9nKERhdGUubm93KCkpOwogIGRlYnVn Z2VyOwp9CmZ1bmN0aW9uIGhhbmRsZU5hdmlnYXRlKCkgewogIGlmIChsb2NhdGlvbi5ob3N0bmFt ZSA9PT0gJ2xvY2FsaG9zdCcpCiAgICBsb2NhdGlvbi5ob3N0bmFtZSA9ICcxMjcuMC4wLjEnOwog IGVsc2UKICAgIGxvY2F0aW9uLmhvc3RuYW1lID0gJ2xvY2FsaG9zdCc7Cn0KPC9zY3JpcHQ+Cjwv aGVhZD4KPGJvZHk+CjxidXR0b24gb25jbGljaz0iYnRuQ2xpY2soKSI+RGVidWdnZXI8L2J1dHRv bj4KPGJ1dHRvbiBvbmNsaWNrPSJoYW5kbGVOYXZpZ2F0ZSgpIj5OYXZpZ2F0ZTwvYnV0dG9uPgo8 L2JvZHk+CjwvaHRtbD4KCg==