39 void testmem(char *msg, char *page, int write)  in testmem()  argument
41 	printf("%s page %p\n", msg, page);  in testmem()
44 		if (madvise(page, PS, MADV_POISON) != 0) {  in testmem()
49 			*page = 2;  in testmem()
51 			printf("%x\n", *(unsigned char *)page);	  in testmem()
81 	char *page;  in main()  local
90  	page = mmap(NULL, PS, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_POPULATE, 0, 0);  in main()
91 	testmem("dirty", page, 1);  in main()
93 	page = mmap(NULL, PS, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_LOCKED, 0, 0);  in main()
94 	testmem("mlocked", page, 1);  in main()
98 	page = mmap(NULL, PS, PROT_READ, MAP_SHARED|MAP_POPULATE, fd, 0);  in main()
99 	if (page == (char *)-1) err("mmap");  in main()
101 	testmem("clean file", page, 0);  in main()
110 	page = mmap(NULL, PS, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);  in main()
111 	if (page == (char*)-1) err("mmap");  in main()
112 	*page = 1;  in main()
113 	testmem("file dirty", page, 0);  in main()
114 	expecterr("msync expect error", msync(page, PS, MS_SYNC));  in main()
122 	page = mmap(NULL, PS, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);  in main()
123 	if (page == (char*)-1) err("mmap");  in main()
124 	*page = 1;  in main()
125 	testmem("hole file dirty", page, 0);  in main()
126 	expecterr("hole msync expect error", msync(page, PS, MS_SYNC));  in main()
142 	page = mmap(NULL, PS*NPAGES, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);  in main()
143 	if (page == (char*)-1) err("mmap");  in main()
146 		if (remap_file_pages(page + i*PS, PS, 0, k, 0))  in main()
149 	*page = 1;  in main()
150 	testmem("rfp file dirty", page, 0);  in main()
151 	expecterr("rfp msync expect error", msync(page, PS, MS_SYNC));  in main()