// systemstack which clobbers g.sched.
		save(pc, sp, bp)
	}
	if gp.syscallsp < gp.stack.lo || gp.stack.hi < gp.syscallsp {
		systemstack(func() {
			print("entersyscall inconsistent ", hex(gp.syscallsp), " [", hex(gp.stack.lo), ",", hex(gp.stack.hi), "]\n")
			throw("entersyscall")
		})
	}

	if trace.ok() {
		systemstack(func() {
			trace.GoSysCall()