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      1 /*	$NetBSD: t_vm.c,v 1.8 2025/04/02 11:28:00 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
     17  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
     18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
     23  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
     25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/types.h>
     31 #include <sys/mount.h>
     32 #include <sys/sysctl.h>
     33 
     34 #include <rump/rump.h>
     35 
     36 #include <atf-c.h>
     37 #include <stdio.h>
     38 #include <stdlib.h>
     39 
     40 #include "h_macros.h"
     41 #include "../kernspace/kernspace.h"
     42 
     43 ATF_TC(busypage);
     44 ATF_TC_HEAD(busypage, tc)
     45 {
     46 
     47 	atf_tc_set_md_var(tc, "descr", "Checks VM pagewaits work");
     48 }
     49 
     50 ATF_TC_BODY(busypage, tc)
     51 {
     52 
     53 	atf_tc_expect_signal(SIGABRT,
     54 	    "PR kern/55945: test bug: unbusies an uninitialized page");
     55 
     56 	rump_init();
     57 
     58 	rump_schedule();
     59 	rumptest_busypage();
     60 	rump_unschedule();
     61 }
     62 
     63 ATF_TC(uvmwait);
     64 ATF_TC_HEAD(uvmwait, tc)
     65 {
     66 
     67 	atf_tc_set_md_var(tc, "descr", "Tests that uvm_wait works");
     68 	atf_tc_set_md_var(tc, "timeout", "30");
     69 }
     70 
     71 #define UVMWAIT_LIMIT 1024*1024
     72 ATF_TC_BODY(uvmwait, tc)
     73 {
     74 	char buf[64];
     75 
     76 	/* limit rump kernel memory */
     77 	snprintf(buf, sizeof(buf), "%d", UVMWAIT_LIMIT);
     78 	setenv("RUMP_MEMLIMIT", buf, 1);
     79 
     80 	rump_init();
     81 
     82 	rump_schedule();
     83 	rumptest_alloc(UVMWAIT_LIMIT);
     84 	rump_unschedule();
     85 }
     86 
     87 ATF_TP_ADD_TCS(tp)
     88 {
     89 
     90 	ATF_TP_ADD_TC(tp, busypage);
     91 	ATF_TP_ADD_TC(tp, uvmwait);
     92 
     93 	return atf_no_error();
     94 }
     95