2 * badblocks.c - Bad blocks checker
4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
5 * Laboratoire MASI, Institut Blaise Pascal
6 * Universite Pierre et Marie Curie (Paris VI)
8 * Copyright 1995, 1996, 1997, 1998, 1999 by Theodore Ts'o
9 * Copyright 1999 by David Beattie
11 * This file is based on the minix file system programs fsck and mkfs
12 * written and copyrighted by Linus Torvalds <Linus.Torvalds@cs.helsinki.fi>
15 * This file may be redistributed under the terms of the GNU Public
22 * 93/05/26 - Creation from e2fsck
23 * 94/02/27 - Made a separate bad blocks checker
24 * 99/06/30...99/07/26 - Added non-destructive write-testing,
25 * configurable blocks-at-once parameter,
26 * loading of badblocks list to avoid testing
27 * blocks known to be bad, multiple passes to
28 * make sure that no new blocks are added to the
29 * list. (Work done by David Beattie)
32 #define _GNU_SOURCE /* for O_DIRECT */
51 #include <sys/ioctl.h>
52 #include <sys/types.h>
54 #include "et/com_err.h"
55 #include "ext2fs/ext2_io.h"
56 #include "ext2fs/ext2_fs.h"
57 #include "ext2fs/ext2fs.h"
58 #include "nls-enable.h"
60 const char * program_name = "badblocks";
61 const char * done_string = N_("done \n");
63 static int v_flag = 0; /* verbose */
64 static int w_flag = 0; /* do r/w test: 0=no, 1=yes,
65 * 2=non-destructive */
66 static int s_flag = 0; /* show progress of test */
67 static int force = 0; /* force check of mounted device */
68 static int t_flag = 0; /* number of test patterns */
69 static int t_max = 0; /* allocated test patterns */
70 static unsigned long *t_patts = NULL; /* test patterns */
71 static int current_O_DIRECT = 0; /* Current status of O_DIRECT flag */
72 static int exclusive_ok = 0;
76 int sys_page_size = 4096;
78 static void usage(void)
80 fprintf(stderr, _("Usage: %s [-b block_size] [-i input_file] [-o output_file] [-svwnf]\n [-c blocks_at_once] [-p num_passes] [-t test_pattern [-t test_pattern [...]]]\n device [last_block [start_block]]\n"),
85 static void exclusive_usage(void)
88 _("%s: The -n and -w options are mutually exclusive.\n\n"),
93 static unsigned long currently_testing = 0;
94 static unsigned long num_blocks = 0;
95 static ext2_badblocks_list bb_list = NULL;
97 static blk_t next_bad = 0;
98 static ext2_badblocks_iterate bb_iter = NULL;
100 static void *allocate_buffer(size_t size)
104 #ifdef HAVE_POSIX_MEMALIGN
105 if (posix_memalign(&ret, sys_page_size, size) < 0)
109 ret = memalign(sys_page_size, size);
113 #endif /* HAVE_VALLOC */
114 #endif /* HAVE_MEMALIGN */
115 #endif /* HAVE_POSIX_MEMALIGN */
124 * This routine reports a new bad block. If the bad block has already
125 * been seen before, then it returns 0; otherwise it returns 1.
127 static int bb_output (unsigned long bad)
131 if (ext2fs_badblocks_list_test(bb_list, bad))
134 fprintf(out, "%lu\n", bad);
137 errcode = ext2fs_badblocks_list_add (bb_list, bad);
139 com_err (program_name, errcode, "adding to in-memory bad block list");
144 increment the iteration through the bb_list if
145 an element was just added before the current iteration
146 position. This should not cause next_bad to change. */
147 if (bb_iter && bad < next_bad)
148 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
152 static void print_status(void)
154 fprintf(stderr, "%15ld/%15ld", currently_testing, num_blocks);
155 fputs("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b", stderr);
159 static void alarm_intr(int alnum EXT2FS_ATTR((unused)))
161 signal (SIGALRM, alarm_intr);
168 static void *terminate_addr = NULL;
170 static void terminate_intr(int signo EXT2FS_ATTR((unused)))
173 longjmp(terminate_addr,1);
177 static void capture_terminate(jmp_buf term_addr)
179 terminate_addr = term_addr;
180 signal (SIGHUP, terminate_intr);
181 signal (SIGINT, terminate_intr);
182 signal (SIGPIPE, terminate_intr);
183 signal (SIGTERM, terminate_intr);
184 signal (SIGUSR1, terminate_intr);
185 signal (SIGUSR2, terminate_intr);
188 static void uncapture_terminate(void)
190 terminate_addr = NULL;
191 signal (SIGHUP, SIG_DFL);
192 signal (SIGINT, SIG_DFL);
193 signal (SIGPIPE, SIG_DFL);
194 signal (SIGTERM, SIG_DFL);
195 signal (SIGUSR1, SIG_DFL);
196 signal (SIGUSR2, SIG_DFL);
199 static void set_o_direct(int dev, unsigned char *buffer, size_t size,
200 unsigned long current_block)
203 int new_flag = O_DIRECT;
206 if ((((unsigned long) buffer & (sys_page_size - 1)) != 0) ||
207 ((size & (sys_page_size - 1)) != 0) ||
208 ((current_block & ((sys_page_size >> 9)-1)) != 0))
211 if (new_flag != current_O_DIRECT) {
212 /* printf("%s O_DIRECT\n", new_flag ? "Setting" : "Clearing"); */
213 flag = fcntl(dev, F_GETFL);
215 flag = (flag & ~O_DIRECT) | new_flag;
216 fcntl(dev, F_SETFL, flag);
218 current_O_DIRECT = new_flag;
224 static void pattern_fill(unsigned char *buffer, unsigned long pattern,
228 unsigned char bpattern[sizeof(pattern)], *ptr;
230 if (pattern == (unsigned long) ~0) {
231 for (ptr = buffer; ptr < buffer + n; ptr++) {
232 (*ptr) = random() % (1 << (8 * sizeof(char)));
235 fputs(_("Testing with random pattern: "), stderr);
238 for (i = 0; i < sizeof(bpattern); i++) {
241 bpattern[i] = pattern & 0xFF;
242 pattern = pattern >> 8;
245 for (ptr = buffer, i = nb; ptr < buffer + n; ptr++) {
252 if (s_flag | v_flag) {
253 fputs(_("Testing with pattern 0x"), stderr);
254 for (i = 0; i <= nb; i++)
255 fprintf(stderr, "%02x", buffer[i]);
262 * Perform a read of a sequence of blocks; return the number of blocks
263 * successfully sequentially read.
265 static long do_read (int dev, unsigned char * buffer, int try, int block_size,
266 unsigned long current_block)
270 set_o_direct(dev, buffer, try * block_size, current_block);
275 /* Seek to the correct loc. */
276 if (ext2fs_llseek (dev, (ext2_loff_t) current_block * block_size,
277 SEEK_SET) != (ext2_loff_t) current_block * block_size)
278 com_err (program_name, errno, _("during seek"));
281 got = read (dev, buffer, try * block_size);
285 fprintf(stderr, _("Weird value (%ld) in do_read\n"), got);
291 * Perform a write of a sequence of blocks; return the number of blocks
292 * successfully sequentially written.
294 static long do_write (int dev, unsigned char * buffer, int try, int block_size,
295 unsigned long current_block)
299 set_o_direct(dev, buffer, try * block_size, current_block);
304 /* Seek to the correct loc. */
305 if (ext2fs_llseek (dev, (ext2_loff_t) current_block * block_size,
306 SEEK_SET) != (ext2_loff_t) current_block * block_size)
307 com_err (program_name, errno, _("during seek"));
310 got = write (dev, buffer, try * block_size);
314 fprintf(stderr, "Weird value (%ld) in do_write\n", got);
321 static void flush_bufs(void)
325 retval = ext2fs_sync_device(host_dev, 1);
327 com_err(program_name, retval, _("during ext2fs_sync_device"));
330 static unsigned int test_ro (int dev, unsigned long last_block,
331 int block_size, unsigned long from_count,
332 unsigned long blocks_at_once)
334 unsigned char * blkbuf;
337 unsigned int bb_count = 0;
340 errcode = ext2fs_badblocks_list_iterate_begin(bb_list,&bb_iter);
342 com_err (program_name, errcode,
343 _("while beginning bad block list iteration"));
347 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
348 } while (next_bad && next_bad < from_count);
351 blkbuf = allocate_buffer((blocks_at_once + 1) * block_size);
353 blkbuf = allocate_buffer(blocks_at_once * block_size);
357 com_err (program_name, ENOMEM, _("while allocating buffers"));
361 fprintf (stderr, _("Checking blocks %lu to %lu\n"), from_count,
365 fputs(_("Checking for bad blocks in read-only mode\n"), stderr);
366 pattern_fill(blkbuf + blocks_at_once * block_size,
367 t_patts[0], block_size);
370 try = blocks_at_once;
371 currently_testing = from_count;
372 num_blocks = last_block - 1;
373 if (!t_flag && (s_flag || v_flag)) {
374 fputs(_("Checking for bad blocks (read-only test): "), stderr);
378 while (currently_testing < last_block)
381 if (currently_testing == next_bad) {
382 /* fprintf (out, "%lu\n", nextbad); */
383 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
387 else if (currently_testing + try > next_bad)
388 try = next_bad - currently_testing;
390 if (currently_testing + try > last_block)
391 try = last_block - currently_testing;
392 got = do_read (dev, blkbuf, try, block_size, currently_testing);
394 /* test the comparison between all the
395 blocks successfully read */
397 for (i = 0; i < got; ++i)
398 if (memcmp (blkbuf+i*block_size,
399 blkbuf+blocks_at_once*block_size,
401 bb_count += bb_output(currently_testing + i);
403 currently_testing += got;
405 try = blocks_at_once;
406 /* recover page-aligned offset for O_DIRECT */
407 if ( blocks_at_once >= (unsigned long) (sys_page_size >> 9)
408 && (currently_testing % (sys_page_size >> 9)!= 0))
409 try -= (sys_page_size >> 9)
411 % (sys_page_size >> 9));
417 bb_count += bb_output(currently_testing++);
422 if (s_flag || v_flag)
423 fputs(_(done_string), stderr);
428 ext2fs_badblocks_list_iterate_end(bb_iter);
433 static unsigned int test_rw (int dev, unsigned long last_block,
434 int block_size, unsigned long from_count,
435 unsigned long blocks_at_once)
437 unsigned char *buffer, *read_buffer;
438 const unsigned long patterns[] = {0xaa, 0x55, 0xff, 0x00};
439 const unsigned long *pattern;
440 int i, try, got, nr_pattern, pat_idx;
441 unsigned int bb_count = 0;
443 buffer = allocate_buffer(2 * blocks_at_once * block_size);
444 read_buffer = buffer + blocks_at_once * block_size;
447 com_err (program_name, ENOMEM, _("while allocating buffers"));
454 fputs(_("Checking for bad blocks in read-write mode\n"),
456 fprintf(stderr, _("From block %lu to %lu\n"),
457 from_count, last_block);
464 nr_pattern = sizeof(patterns) / sizeof(patterns[0]);
466 for (pat_idx = 0; pat_idx < nr_pattern; pat_idx++) {
467 pattern_fill(buffer, pattern[pat_idx],
468 blocks_at_once * block_size);
469 num_blocks = last_block - 1;
470 currently_testing = from_count;
471 if (s_flag && v_flag <= 1)
474 try = blocks_at_once;
475 while (currently_testing < last_block) {
476 if (currently_testing + try > last_block)
477 try = last_block - currently_testing;
478 got = do_write(dev, buffer, try, block_size,
483 currently_testing += got;
485 try = blocks_at_once;
486 /* recover page-aligned offset for O_DIRECT */
487 if ( blocks_at_once >= (unsigned long) (sys_page_size >> 9)
488 && (currently_testing %
489 (sys_page_size >> 9)!= 0))
490 try -= (sys_page_size >> 9)
492 % (sys_page_size >> 9));
497 bb_count += bb_output(currently_testing++);
504 fputs(_(done_string), stderr);
507 fputs(_("Reading and comparing: "), stderr);
508 num_blocks = last_block;
509 currently_testing = from_count;
510 if (s_flag && v_flag <= 1)
513 try = blocks_at_once;
514 while (currently_testing < last_block) {
515 if (currently_testing + try > last_block)
516 try = last_block - currently_testing;
517 got = do_read (dev, read_buffer, try, block_size,
520 bb_count += bb_output(currently_testing++);
523 for (i=0; i < got; i++) {
524 if (memcmp(read_buffer + i * block_size,
525 buffer + i * block_size,
527 bb_count += bb_output(currently_testing+i);
529 currently_testing += got;
530 /* recover page-aligned offset for O_DIRECT */
531 if ( blocks_at_once >= (unsigned long) (sys_page_size >> 9)
532 && (currently_testing % (sys_page_size >> 9)!= 0))
533 try = blocks_at_once - (sys_page_size >> 9)
535 % (sys_page_size >> 9));
537 try = blocks_at_once;
545 fputs(_(done_string), stderr);
548 uncapture_terminate();
553 struct saved_blk_record {
558 static unsigned int test_nd (int dev, unsigned long last_block,
559 int block_size, unsigned long from_count,
560 unsigned long blocks_at_once)
562 unsigned char *blkbuf, *save_ptr, *test_ptr, *read_ptr;
563 unsigned char *test_base, *save_base, *read_base;
565 const unsigned long patterns[] = { ~0 };
566 const unsigned long *pattern;
567 int nr_pattern, pat_idx;
568 long got, used2, written, save_currently_testing;
569 struct saved_blk_record *test_record;
570 /* This is static to prevent being clobbered by the longjmp */
571 static int num_saved;
572 jmp_buf terminate_env;
574 unsigned long buf_used;
575 static unsigned int bb_count;
578 errcode = ext2fs_badblocks_list_iterate_begin(bb_list,&bb_iter);
580 com_err (program_name, errcode,
581 _("while beginning bad block list iteration"));
585 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
586 } while (next_bad && next_bad < from_count);
588 blkbuf = allocate_buffer(3 * blocks_at_once * block_size);
589 test_record = malloc (blocks_at_once*sizeof(struct saved_blk_record));
590 if (!blkbuf || !test_record) {
591 com_err(program_name, ENOMEM, _("while allocating buffers"));
596 test_base = blkbuf + (blocks_at_once * block_size);
597 read_base = blkbuf + (2 * blocks_at_once * block_size);
603 fputs(_("Checking for bad blocks in non-destructive read-write mode\n"), stderr);
604 fprintf (stderr, _("From block %lu to %lu\n"), from_count, last_block);
606 if (s_flag || v_flag > 1) {
607 fputs(_("Checking for bad blocks (non-destructive read-write test)\n"), stderr);
609 if (setjmp(terminate_env)) {
611 * Abnormal termination by a signal is handled here.
613 signal (SIGALRM, SIG_IGN);
614 fputs(_("\nInterrupt caught, cleaning up\n"), stderr);
616 save_ptr = save_base;
617 for (i=0; i < num_saved; i++) {
618 do_write(dev, save_ptr, test_record[i].num,
619 block_size, test_record[i].block);
620 save_ptr += test_record[i].num * block_size;
626 /* set up abend handler */
627 capture_terminate(terminate_env);
634 nr_pattern = sizeof(patterns) / sizeof(patterns[0]);
636 for (pat_idx = 0; pat_idx < nr_pattern; pat_idx++) {
637 pattern_fill(test_base, pattern[pat_idx],
638 blocks_at_once * block_size);
642 save_ptr = save_base;
643 test_ptr = test_base;
644 currently_testing = from_count;
645 num_blocks = last_block - 1;
646 if (s_flag && v_flag <= 1)
649 while (currently_testing < last_block) {
650 got = try = blocks_at_once - buf_used;
652 if (currently_testing == next_bad) {
653 /* fprintf (out, "%lu\n", nextbad); */
654 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
658 else if (currently_testing + try > next_bad)
659 try = next_bad - currently_testing;
661 if (currently_testing + try > last_block)
662 try = last_block - currently_testing;
663 got = do_read (dev, save_ptr, try, block_size,
666 /* First block must have been bad. */
667 bb_count += bb_output(currently_testing++);
672 * Note the fact that we've saved this much data
673 * *before* we overwrite it with test data
675 test_record[num_saved].block = currently_testing;
676 test_record[num_saved].num = got;
679 /* Write the test data */
680 written = do_write (dev, test_ptr, got, block_size,
683 com_err (program_name, errno,
684 _("during test data write, block %lu"),
685 currently_testing + written);
688 save_ptr += got * block_size;
689 test_ptr += got * block_size;
690 currently_testing += got;
692 bb_count += bb_output(currently_testing++);
696 * If there's room for more blocks to be tested this
697 * around, and we're not done yet testing the disk, go
698 * back and get some more blocks.
700 if ((buf_used != blocks_at_once) &&
701 (currently_testing < last_block))
705 save_currently_testing = currently_testing;
708 * for each contiguous block that we read into the
709 * buffer (and wrote test data into afterwards), read
710 * it back (looping if necessary, to get past newly
711 * discovered unreadable blocks, of which there should
712 * be none, but with a hard drive which is unreliable,
713 * it has happened), and compare with the test data
714 * that was written; output to the bad block list if
718 save_ptr = save_base;
719 test_ptr = test_base;
720 read_ptr = read_base;
725 if (used2 >= num_saved)
727 currently_testing = test_record[used2].block;
728 try = test_record[used2].num;
732 got = do_read (dev, read_ptr, try,
733 block_size, currently_testing);
735 /* test the comparison between all the
736 blocks successfully read */
737 for (i = 0; i < got; ++i)
738 if (memcmp (test_ptr+i*block_size,
739 read_ptr+i*block_size, block_size))
740 bb_count += bb_output(currently_testing + i);
742 bb_count += bb_output(currently_testing + got);
746 /* write back original data */
747 do_write (dev, save_ptr, got,
748 block_size, currently_testing);
749 save_ptr += got * block_size;
751 currently_testing += got;
752 test_ptr += got * block_size;
753 read_ptr += got * block_size;
757 /* empty the buffer so it can be reused */
760 save_ptr = save_base;
761 test_ptr = test_base;
762 currently_testing = save_currently_testing;
766 if (s_flag || v_flag > 1)
767 fputs(_(done_string), stderr);
771 uncapture_terminate();
776 ext2fs_badblocks_list_iterate_end(bb_iter);
781 static void check_mount(char *device_name)
786 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
788 com_err("ext2fs_check_if_mount", retval,
789 _("while determining whether %s is mounted."),
793 if (mount_flags & EXT2_MF_MOUNTED) {
794 fprintf(stderr, _("%s is mounted; "), device_name);
796 fputs(_("badblocks forced anyway. "
797 "Hope /etc/mtab is incorrect.\n"), stderr);
801 fputs(_("it's not safe to run badblocks!\n"), stderr);
805 if ((mount_flags & EXT2_MF_BUSY) && !exclusive_ok) {
806 fprintf(stderr, _("%s is apparently in use by the system; "),
809 fputs(_("badblocks forced anyway.\n"), stderr);
811 goto abort_badblocks;
817 int main (int argc, char ** argv)
822 char * host_device_name = NULL;
823 char * input_file = NULL;
824 char * output_file = NULL;
826 int block_size = 1024;
827 unsigned long blocks_at_once = 64;
828 blk_t last_block, from_count;
830 int passes_clean = 0;
833 unsigned long pattern;
834 unsigned int (*test_func)(int, unsigned long,
840 setbuf(stdout, NULL);
841 setbuf(stderr, NULL);
843 setlocale(LC_MESSAGES, "");
844 setlocale(LC_CTYPE, "");
845 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
846 textdomain(NLS_CAT_NAME);
848 srandom((unsigned int)time(NULL)); /* simple randomness is enough */
851 /* Determine the system page size if possible */
853 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
854 #define _SC_PAGESIZE _SC_PAGE_SIZE
857 sysval = sysconf(_SC_PAGESIZE);
859 sys_page_size = sysval;
860 #endif /* _SC_PAGESIZE */
861 #endif /* HAVE_SYSCONF */
864 program_name = *argv;
865 while ((c = getopt (argc, argv, "b:fi:o:svwnc:p:h:t:X")) != EOF) {
868 block_size = strtoul (optarg, &tmp, 0);
869 if (*tmp || block_size > 4096) {
870 com_err (program_name, 0,
871 _("bad block size - %s"), optarg);
882 output_file = optarg;
903 blocks_at_once = strtoul (optarg, &tmp, 0);
905 com_err (program_name, 0,
906 "bad simultaneous block count - %s", optarg);
911 num_passes = strtoul (optarg, &tmp, 0);
913 com_err (program_name, 0,
914 "bad number of clean passes - %s", optarg);
919 host_device_name = optarg;
922 if (t_flag + 1 > t_max) {
923 unsigned long *t_patts_new;
925 t_patts_new = realloc(t_patts, t_max + T_INC);
927 com_err(program_name, ENOMEM,
928 _("can't allocate memory for "
929 "test_pattern - %s"),
933 t_patts = t_patts_new;
936 if (!strcmp(optarg, "r") || !strcmp(optarg,"random")) {
937 t_patts[t_flag++] = ~0;
939 pattern = strtoul(optarg, &tmp, 0);
941 com_err(program_name, 0,
942 _("invalid test_pattern: %s\n"),
946 if (pattern == (unsigned long) ~0)
948 t_patts[t_flag++] = pattern;
960 com_err(program_name, 0,
961 _("Maximum of one test_pattern may be specified "
962 "in read-only mode"));
965 if (t_patts && (t_patts[0] == (unsigned long) ~0)) {
966 com_err(program_name, 0,
967 _("Random test_pattern is not allowed "
968 "in read-only mode"));
972 if (optind > argc - 1)
974 device_name = argv[optind++];
975 if (optind > argc - 1) {
976 errcode = ext2fs_get_device_size(device_name,
979 if (errcode == EXT2_ET_UNIMPLEMENTED) {
980 com_err(program_name, 0,
981 _("Couldn't determine device size; you "
982 "must specify\nthe size manually\n"));
986 com_err(program_name, errcode,
987 _("while trying to determine device size"));
992 last_block = strtoul (argv[optind], &tmp, 0);
993 printf("last_block = %d (%s)\n", last_block, argv[optind]);
995 (last_block == ULONG_MAX && errno == ERANGE)) {
996 com_err (program_name, 0, _("invalid blocks count - %s"),
1003 if (optind <= argc-1) {
1005 from_count = strtoul (argv[optind], &tmp, 0);
1006 printf("from_count = %d\n", from_count);
1007 if (*tmp || errno ||
1008 (from_count == ULONG_MAX && errno == ERANGE)) {
1009 com_err (program_name, 0, _("invalid starting block - %s"),
1013 } else from_count = 0;
1014 if (from_count >= last_block) {
1015 com_err (program_name, 0, _("invalid starting block (%lu): must be less than %lu"),
1016 (unsigned long) from_count, (unsigned long) last_block);
1020 check_mount(device_name);
1022 open_flag = w_flag ? O_RDWR : O_RDONLY;
1023 dev = open (device_name, open_flag);
1025 com_err (program_name, errno, _("while trying to open %s"),
1029 if (host_device_name) {
1030 host_dev = open (host_device_name, open_flag);
1031 if (host_dev == -1) {
1032 com_err (program_name, errno,
1033 _("while trying to open %s"),
1040 if (strcmp (input_file, "-") == 0)
1043 in = fopen (input_file, "r");
1046 com_err (program_name, errno,
1047 _("while trying to open %s"),
1053 if (output_file && strcmp (output_file, "-") != 0)
1055 out = fopen (output_file, "w");
1058 com_err (program_name, errno,
1059 _("while trying to open %s"),
1067 errcode = ext2fs_badblocks_list_create(&bb_list,0);
1069 com_err (program_name, errcode,
1070 _("while creating in-memory bad blocks list"));
1076 switch(fscanf (in, "%u\n", &next_bad)) {
1078 com_err (program_name, 0, "input file - bad format");
1083 errcode = ext2fs_badblocks_list_add(bb_list,next_bad);
1085 com_err (program_name, errcode, _("while adding to in-memory bad block list"));
1098 unsigned int bb_count;
1100 bb_count = test_func(dev, last_block, block_size,
1101 from_count, blocks_at_once);
1109 _("Pass completed, %u bad blocks found.\n"),
1112 } while (passes_clean < num_passes);