[Webkit-unassigned] [Bug 185763] New: [GTK] MiniBrowser crashes when loading twice quickly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=185763

            Bug ID: 185763
           Summary: [GTK] MiniBrowser crashes when loading twice quickly
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: bugs-noreply at webkitgtk.org, lforschler at apple.com

This is very difficult to reproduce manually, but it happens when running WebDriver tests where loads are very fast and multiple loads are done quickly. The problem is that we use an idle to resent the progress bar, but we don't reset it when a new load starts. We always reset the last idle on destroy, but if there's another one leaked, it will crash when scheduled if the window has already been destroyed.

Thread 1 "MiniBrowser" received signal SIGSEGV, Segmentation fault.
g_type_check_instance_cast (type_instance=0xaaaaaaaaaaaaaaaa, 
    iface_type=94876889051072) at gtype.c:4052
4052          if (type_instance->g_class)
(gdb) bt
#0  g_type_check_instance_cast (type_instance=0xaaaaaaaaaaaaaaaa, 
    iface_type=94876889051072) at gtype.c:4052
#1  0x0000564a3e32c345 in resetEntryProgress ()
#2  0x00007f2c58c79063 in g_timeout_dispatch (
    source=source at entry=0x564a3f26ca00, callback=<optimized out>, 
    user_data=<optimized out>) at gmain.c:4650
#3  0x00007f2c58c78615 in g_main_dispatch (context=0x564a3f006290)
    at gmain.c:3177
#4  g_main_context_dispatch (context=context at entry=0x564a3f006290)
    at gmain.c:3830
#5  0x00007f2c58c789b8 in g_main_context_iterate (context=0x564a3f006290, 
    block=block at entry=1, dispatch=dispatch at entry=1, self=<optimized out>)
    at gmain.c:3903
#6  0x00007f2c58c78cc2 in g_main_loop_run (loop=0x564a3f52fbf0) at gmain.c:4099
#7  0x00007f2c5a834e25 in gtk_main () at gtkmain.c:1323
#8  0x0000564a3e32567c in main ()

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