cvs commit: src/sys/boot/i386/btx/btx btx.S

[John Baldwin]

jhb         2006-12-06 17:45:35 UTC

  FreeBSD src repository

  Modified files:
    sys/boot/i386/btx/btx btx.S 
  Log:
  Ignore any breakpoint instructions (int 3) we encounter in vm86 mode
  rather than treating them as a fatal exception and halting.  At least one
  storage BIOS (some newer mpt(4) parts) have a breakpoint instruction in
  their disk read routine.
  
  MFC after:      3 days
  
  Revision  Changes    Path
  1.44      +2 -0      src/sys/boot/i386/btx/btx/btx.S