ENTER_KERNEL      194 mtcp/sysdep/sysdep-i386.h #  define ENTER_KERNEL call *%gs:SYSINFO_OFFSET
ENTER_KERNEL      196 mtcp/sysdep/sysdep-i386.h #  define ENTER_KERNEL call *_dl_sysinfo
ENTER_KERNEL      199 mtcp/sysdep/sysdep-i386.h # define ENTER_KERNEL int $0x80