Seems to be very common.
*** Fatal System Error: 0x0000007f
(0x00000008,0x00000000,0x00000000,0x00000000)
Entered debugger on embedded INT3 at 0x0008:0x808c6708.
kdb:> bt
Eip:
<ntoskrnl.exe:c6709 (lib/rtl/i386/debug_asm.S:42
(RtlpBreakWithStatusInstruction))>
Frames:
<ntoskrnl.exe:9e6d (ntoskrnl/ke/bug.c:1110 (KeBugCheckWithTf@24))>
<ntoskrnl.exe:35d7 (ntoskrnl/ke/i386/exp.c:1170 (KeRaiseUserException@4))>
<ntoskrnl.exe:60cb (ntoskrnl/ke/i386/traphdlr.c:741 (@KiTrap09Handler@4))>
<00000000>
kdb:>