[Webkit-unassigned] [Bug 217986] New: [GLIB] imported/w3c/web-platform-tests/html/canvas/offscreen/line-styles/2d.line.width.transformed.html is a flaky crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=217986

            Bug ID: 217986
           Summary: [GLIB]
                    imported/w3c/web-platform-tests/html/canvas/offscreen/
                    line-styles/2d.line.width.transformed.html is a flaky
                    crash
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dpino at igalia.com

These two tests are following with the same stacktrace:

  imported/w3c/web-platform-tests/html/canvas/offscreen/line-styles/2d.line.width.transformed.html [ Crash ]
  imported/w3c/web-platform-tests/html/canvas/offscreen/path-objects/2d.path.arc.selfintersect.1.worker.html [ Crash ]

First reported crash in test history is r267763. Exploring several revisions before, r267735 might be a likely cause for the failures.

Crash-log: https://build.webkit.org/results/GTK-Linux-64-bit-Release-Tests/r268734%20(16534)/imported/w3c/web-platform-tests/html/canvas/offscreen/line-styles/2d.line.width.transformed-crash-log.txt

Thread 1 (Thread 0x7fbff0b7e9c0 (LWP 99757)):
#0  0x00007fbffb2558f0 in WTF::Detail::CallableWrapper<WebCore::OffscreenCanvas::pushBufferToPlaceholder()::$_6, void>::call() () at /app/webkit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#1  0x00007fbff74bed36 in WTF::RunLoop::performWork() () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#2  0x00007fbff7519cb6 in WTF::RunLoop::RunLoop()::$_1::__invoke(void*) () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#3  0x00007fbff75191aa in WTF::RunLoop::$_0::__invoke(_GSource*, int (*)(void*), void*) () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#4  0x00007fbff2f5704f in g_main_dispatch (context=0x1bd3970) at ../glib/gmain.c:3325
#5  g_main_context_dispatch (context=0x1bd3970) at ../glib/gmain.c:4016
#6  0x00007fbff2f573f8 in g_main_context_iterate (context=0x1bd3970, block=block at entry=1, dispatch=dispatch at entry=1, self=<optimized out>) at ../glib/gmain.c:4092
#7  0x00007fbff2f57713 in g_main_loop_run (loop=0x1c01c10) at ../glib/gmain.c:4290
#8  0x00007fbff751974b in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#9  0x00007fbffa2dd87f in int WebKit::AuxiliaryProcessMain<WebKit::WebProcess, WebKit::WebProcessMainGtk>(int, char**) () at /app/webkit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#10 0x00007fbff1ab6022 in __libc_start_main (main=0x400c20 <main>, argc=4, argv=0x7ffed176fd68, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffed176fd58) at ../csu/libc-start.c:308
#11 0x0000000000400b5e in _start () at ../sysdeps/x86_64/start.S:120

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