SendMessage (37748764, 0x444, 0x1, 0x216bde0)
^[^[Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Windows.Forms.X11Keyboard.Xutf8LookupString (intptr,System.Windows.Forms.XEvent&,byte[],int,intptr&,System.Windows.Forms.XLookupStatus&) <0x000a4>
  at System.Windows.Forms.X11Keyboard.LookupString (System.Windows.Forms.XEvent&,int,System.Windows.Forms.XKeySym&,System.Windows.Forms.XLookupStatus&) <0x000c3>
  at System.Windows.Forms.X11Keyboard.EventToVkey (System.Windows.Forms.XEvent) <0x0003f>
  at System.Windows.Forms.X11Keyboard.ToUnicode (int,int,string&) <0x0035f>
  at System.Windows.Forms.X11Keyboard.TranslateMessage (System.Windows.Forms.MSG&) <0x00127>
  at System.Windows.Forms.XplatUIX11.TranslateMessage (System.Windows.Forms.MSG&) <0x00023>
  at System.Windows.Forms.XplatUI.TranslateMessage (System.Windows.Forms.MSG&) <0x0001f>
  at System.Windows.Forms.Application.RunLoop (bool,System.Windows.Forms.ApplicationContext) <0x00cf7>
  at System.Windows.Forms.Application.Run (System.Windows.Forms.ApplicationContext) <0x00057>
  at System.Windows.Forms.Application.Run (System.Windows.Forms.Form) <0x00033>
  at KeePass.Program.Main (string[]) <0x00bde>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) <0x000c8>

Native stacktrace:

        mono() [0x4ac77f]
        mono() [0x50014e]
        mono() [0x428653]
        /usr/lib/libpthread.so.0(+0x10ef0) [0x7f2197ba5ef0]
        /usr/lib/libc.so.6(strlen+0x26) [0x7f219765bd76]
        /usr/lib/libX11.so.6(_XimLocalUtf8LookupString+0xeb) [0x7f218f21db1b]
        [0x40fea795]

Debug info from gdb:


=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

Aborted (core dumped)