[Webkit-unassigned] [Bug 164912] New: [GTK][Stable] Crash clearing GLContextGLX contexts in exit handler

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Nov 18 04:36:36 PST 2016


            Bug ID: 164912
           Summary: [GTK][Stable] Crash clearing GLContextGLX contexts in
                    exit handler
    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

Web process crash clearing active GLContextGLX contexts in exit handler:

Thread 1 (Thread 0x7fec5bca0ac0 (LWP 5832)):
#0  0x00007fec4d2d8809 in ?? ()
No symbol table info available.
#1  0x00007fec5aa3c775 in WebCore::GLContextGLX::clear (this=0x7fec45770000) at /usr/src/debug/webkitgtk-2.14.1/Source/WebCore/platform/graphics/glx/GLContextGLX.cpp:225
No locals.
#2  0x00007fec5aa3c823 in WebCore::<lambda()>::<lambda()>::operator() (__closure=0x0) at /usr/src/debug/webkitgtk-2.14.1/Source/WebCore/platform/graphics/glx/GLContextGLX.cpp:51
        context = <optimized out>
        __for_range = <optimized out>
#3  WebCore::<lambda()>::<lambda()>::_FUN(void) () at /usr/src/debug/webkitgtk-2.14.1/Source/WebCore/platform/graphics/glx/GLContextGLX.cpp:52
No locals.
#4  0x00007fec4d9d8258 in __run_exit_handlers (status=0, listp=0x7fec4dd5b5d8 <__exit_funcs>, run_list_atexit=run_list_atexit at entry=true) at exit.c:82
        atfct = <optimized out>
        onfct = <optimized out>
        cxafct = <optimized out>
        f = <optimized out>
#5  0x00007fec4d9d82a5 in __GI_exit (status=<optimized out>) at exit.c:104
No locals.
#6  0x00007fec4d9bf738 in __libc_start_main (main=0x55bf30187c40 <main(int, char**)>, argc=2, argv=0x7fff9d5f8cb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9d5f8ca8) at ../csu/libc-start.c:323
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 1908855912825480146, 94279634025584, 140735833672880, 0, 0, 5691640466447918034, 5682246756743504850}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fff9d5f8cd0, 0x7fec5bd88128}, data = {prev = 0x0, cleanup = 0x0, canceltype = -1654682416}}}
        not_first_call = <optimized out>
#7  0x000055bf30187c99 in _start ()

Carlos Garcia already removed this function in trunk, so it should only be a problem in stable. We should probably take the fix that went into trunk instead of trying to do something "safer" in stable.

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