50488 - crash after switching skin

Status: VERIFIED DUPLICATE of bug 50335

(Core :: Web Painting, defect, P3)

Description

[Warren Harris]

I switched from the new modern to the classic skin, and got this crash:

        event->point.x += trect.x;
        event->point.y += trect.y;
      }
=>      pKid->GetNextSibling(pKid);
    }
  }

pKid has a vtable pointer that is null. Inside the nsView object, the 
mViewManager is deleted (0xdddddddd).

nsView::HandleEvent(nsView * const 0x04b2aca0, nsGUIEvent * 0x0012f894, unsigned 
int 0x00000008, nsEventStatus * 0x0012f784, int 0x00000000, int & 0x00000001) 
line 349 + 13 bytes
nsView::HandleEvent(nsView * const 0x04b16cb0, nsGUIEvent * 0x0012f894, unsigned 
int 0x00000008, nsEventStatus * 0x0012f784, int 0x00000000, int & 0x00000001) 
line 346
nsView::HandleEvent(nsView * const 0x03274880, nsGUIEvent * 0x0012f894, unsigned 
int 0x0000001c, nsEventStatus * 0x0012f784, int 0x00000001, int & 0x00000001) 
line 346
nsViewManager2::DispatchEvent(nsViewManager2 * const 0x03277d20, nsGUIEvent * 
0x0012f894, nsEventStatus * 0x0012f784) line 1429
HandleEvent(nsGUIEvent * 0x0012f894) line 68
nsWindow::DispatchEvent(nsWindow * const 0x04b2ab64, nsGUIEvent * 0x0012f894, 
nsEventStatus & nsEventStatus_eIgnore) line 614 + 10 bytes
nsWindow::DispatchWindowEvent(nsGUIEvent * 0x0012f894) line 635
nsWindow::DispatchMouseEvent(unsigned int 0x0000012d, nsPoint * 0x00000000 
{x=??? y=???}) line 3810 + 21 bytes
ChildWindow::DispatchMouseEvent(unsigned int 0x0000012d, nsPoint * 0x00000000 
{x=??? y=???}) line 4020
nsWindow::ProcessMessage(unsigned int 0x00000202, unsigned int 0x00000000, long 
0x00b5002b, long * 0x0012fc10) line 2888 + 24 bytes
nsWindow::WindowProc(HWND__ * 0x1baf03e2, unsigned int 0x00000202, unsigned int 
0x00000000, long 0x00b5002b) line 883 + 27 bytes
USER32! 77e71820()

Comment 1

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

*** This bug has been marked as a duplicate of 50335 ***

Comment 2

[Diego]

Verified as a dupe of bug 50335 "Crash on switching themes using menu item"