Comment 2 for bug 90826

Debug backtrace for the crash:

#0 0xb7f05f6a in run_vm86 () at lrmi.c:526
No locals.
#1 0xb7f06507 in LRMI_call (r=0xbfde1240) at lrmi.c:797
No locals.
#2 0x0804993d in do_real_post (pci_device=256) at vbetool.c:201
        error = <value optimized out>
        r = {edi = 0, esi = 0, ebp = 0, reserved = 0, ebx = 0, edx = 128,
  ecx = 0, eax = 256, flags = 0, es = 0, ds = 64, fs = 0, gs = 0, ip = 3,
  cs = 49152, sp = 0, ss = 0}
#3 0x080499dd in do_post () at vbetool.c:225
        p = (struct pci_dev *) 0x8051340
        error = <value optimized out>
#4 0x08049e1a in main (argc=65535, argv=0xbfde1374) at vbetool.c:115
        err = 0