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Fix zdb -R with 'b' flag
zdb -R :b fails due to the indirect block being compressed, and the 'b' and 'd' flag not working in tandem when specified. Fix the flag parsing code and create a zfs test for zdb -R block display. Also fix the zio flags where the dotted notation for the vdev portion of DVA (i.e. 0.0:offset:length) fails. Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Zuchowski <pzuchowski@datto.com> Closes #9640 Closes #9729
This commit is contained in:
Paul Zuchowski
GitHub
parent
dda702fd16
commit
bc67cba7c0
255
cmd/zdb/zdb.c
255
cmd/zdb/zdb.c
@ -6410,6 +6410,18 @@ dump_zpool(spa_t *spa)
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}
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}
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#define ZDB_FLAG_CHECKSUM 0x0001
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#define ZDB_FLAG_DECOMPRESS 0x0002
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#define ZDB_FLAG_BSWAP 0x0004
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#define ZDB_FLAG_GBH 0x0008
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#define ZDB_FLAG_INDIRECT 0x0010
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#define ZDB_FLAG_RAW 0x0020
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#define ZDB_FLAG_PRINT_BLKPTR 0x0040
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#define ZDB_FLAG_VERBOSE 0x0080
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static int flagbits[256];
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static char flagbitstr[16];
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static void
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zdb_print_blkptr(blkptr_t *bp, int flags)
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{
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@ -6576,6 +6588,83 @@ zdb_parse_block_sizes(char *sizes, uint64_t *lsize, uint64_t *psize)
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#define ZIO_COMPRESS_MASK(alg) (1ULL << (ZIO_COMPRESS_##alg))
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static boolean_t
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zdb_decompress_block(abd_t *pabd, void *buf, void *lbuf, uint64_t lsize,
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uint64_t psize, int flags)
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{
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boolean_t exceeded = B_FALSE;
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/*
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* We don't know how the data was compressed, so just try
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* every decompress function at every inflated blocksize.
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*/
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void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
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int cfuncs[ZIO_COMPRESS_FUNCTIONS] = { 0 };
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int *cfuncp = cfuncs;
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uint64_t maxlsize = SPA_MAXBLOCKSIZE;
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uint64_t mask = ZIO_COMPRESS_MASK(ON) | ZIO_COMPRESS_MASK(OFF) |
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ZIO_COMPRESS_MASK(INHERIT) | ZIO_COMPRESS_MASK(EMPTY) |
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(getenv("ZDB_NO_ZLE") ? ZIO_COMPRESS_MASK(ZLE) : 0);
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*cfuncp++ = ZIO_COMPRESS_LZ4;
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*cfuncp++ = ZIO_COMPRESS_LZJB;
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mask |= ZIO_COMPRESS_MASK(LZ4) | ZIO_COMPRESS_MASK(LZJB);
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for (int c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++)
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if (((1ULL << c) & mask) == 0)
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*cfuncp++ = c;
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/*
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* On the one hand, with SPA_MAXBLOCKSIZE at 16MB, this
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* could take a while and we should let the user know
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* we are not stuck. On the other hand, printing progress
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* info gets old after a while. User can specify 'v' flag
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* to see the progression.
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*/
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if (lsize == psize)
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lsize += SPA_MINBLOCKSIZE;
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else
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maxlsize = lsize;
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for (; lsize <= maxlsize; lsize += SPA_MINBLOCKSIZE) {
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for (cfuncp = cfuncs; *cfuncp; cfuncp++) {
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if (flags & ZDB_FLAG_VERBOSE) {
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(void) fprintf(stderr,
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"Trying %05llx -> %05llx (%s)\n",
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(u_longlong_t)psize,
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(u_longlong_t)lsize,
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zio_compress_table[*cfuncp].\
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ci_name);
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}
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/*
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* We randomize lbuf2, and decompress to both
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* lbuf and lbuf2. This way, we will know if
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* decompression fill exactly to lsize.
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*/
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VERIFY0(random_get_pseudo_bytes(lbuf2, lsize));
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if (zio_decompress_data(*cfuncp, pabd,
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lbuf, psize, lsize) == 0 &&
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zio_decompress_data(*cfuncp, pabd,
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lbuf2, psize, lsize) == 0 &&
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bcmp(lbuf, lbuf2, lsize) == 0)
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break;
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}
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if (*cfuncp != 0)
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break;
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}
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umem_free(lbuf2, SPA_MAXBLOCKSIZE);
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if (lsize > maxlsize) {
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exceeded = B_TRUE;
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}
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buf = lbuf;
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if (*cfuncp == ZIO_COMPRESS_ZLE) {
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printf("\nZLE decompression was selected. If you "
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"suspect the results are wrong,\ntry avoiding ZLE "
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"by setting and exporting ZDB_NO_ZLE=\"true\"\n");
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}
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return (exceeded);
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}
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/*
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* Read a block from a pool and print it out. The syntax of the
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* block descriptor is:
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@ -6610,7 +6699,7 @@ zdb_read_block(char *thing, spa_t *spa)
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void *lbuf, *buf;
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char *s, *p, *dup, *vdev, *flagstr, *sizes;
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int i, error;
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boolean_t borrowed = B_FALSE;
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boolean_t borrowed = B_FALSE, found = B_FALSE;
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dup = strdup(thing);
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s = strtok(dup, ":");
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@ -6630,41 +6719,57 @@ zdb_read_block(char *thing, spa_t *spa)
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s = "offset must be a multiple of sector size";
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if (s) {
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(void) printf("Invalid block specifier: %s - %s\n", thing, s);
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free(flagstr);
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free(dup);
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return;
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goto done;
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}
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for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
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for (i = 0; flagstr[i]; i++) {
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for (i = 0; i < strlen(flagstr); i++) {
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int bit = flagbits[(uchar_t)flagstr[i]];
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if (bit == 0) {
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(void) printf("***Invalid flag: %c\n",
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flagstr[i]);
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(void) printf("***Ignoring flag: %c\n",
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(uchar_t)flagstr[i]);
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continue;
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}
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found = B_TRUE;
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flags |= bit;
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/* If it's not something with an argument, keep going */
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if ((bit & (ZDB_FLAG_CHECKSUM |
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ZDB_FLAG_PRINT_BLKPTR)) == 0)
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continue;
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p = &flagstr[i + 1];
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if (bit == ZDB_FLAG_PRINT_BLKPTR) {
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blkptr_offset = strtoull(p, &p, 16);
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i = p - &flagstr[i + 1];
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}
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if (*p != ':' && *p != '\0') {
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(void) printf("***Invalid flag arg: '%s'\n", s);
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free(flagstr);
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free(dup);
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return;
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int j = 0, nextbit = flagbits[(uchar_t)*p];
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char *end, offstr[8] = { 0 };
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if ((bit == ZDB_FLAG_PRINT_BLKPTR) &&
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(nextbit == 0)) {
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/* look ahead to isolate the offset */
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while (nextbit == 0 &&
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strchr(flagbitstr, *p) == NULL) {
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offstr[j] = *p;
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j++;
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if (i + j > strlen(flagstr))
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break;
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p++;
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nextbit = flagbits[(uchar_t)*p];
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}
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blkptr_offset = strtoull(offstr, &end,
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16);
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i += j;
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} else if (nextbit == 0) {
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(void) printf("***Ignoring flag arg:"
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" '%c'\n", (uchar_t)*p);
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}
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}
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}
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}
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free(flagstr);
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if (blkptr_offset % sizeof (blkptr_t)) {
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printf("Block pointer offset 0x%llx "
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"must be divisible by 0x%x\n",
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(longlong_t)blkptr_offset, (int)sizeof (blkptr_t));
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goto done;
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}
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if (found == B_FALSE && strlen(flagstr) > 0) {
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printf("Invalid flag arg: '%s'\n", flagstr);
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goto done;
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}
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vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
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if (vd == NULL) {
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@ -6717,10 +6822,9 @@ zdb_read_block(char *thing, spa_t *spa)
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*/
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zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
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psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
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ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
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ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
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ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL,
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NULL, NULL));
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ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_PROPAGATE |
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ZIO_FLAG_DONT_RETRY | ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW |
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ZIO_FLAG_OPTIONAL, NULL, NULL));
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}
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error = zio_wait(zio);
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@ -6731,80 +6835,43 @@ zdb_read_block(char *thing, spa_t *spa)
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goto out;
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}
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uint64_t orig_lsize = lsize;
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buf = lbuf;
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if (flags & ZDB_FLAG_DECOMPRESS) {
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/*
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* We don't know how the data was compressed, so just try
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* every decompress function at every inflated blocksize.
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*/
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void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
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int cfuncs[ZIO_COMPRESS_FUNCTIONS] = { 0 };
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int *cfuncp = cfuncs;
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uint64_t maxlsize = SPA_MAXBLOCKSIZE;
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uint64_t mask = ZIO_COMPRESS_MASK(ON) | ZIO_COMPRESS_MASK(OFF) |
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ZIO_COMPRESS_MASK(INHERIT) | ZIO_COMPRESS_MASK(EMPTY) |
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(getenv("ZDB_NO_ZLE") ? ZIO_COMPRESS_MASK(ZLE) : 0);
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*cfuncp++ = ZIO_COMPRESS_LZ4;
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*cfuncp++ = ZIO_COMPRESS_LZJB;
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mask |= ZIO_COMPRESS_MASK(LZ4) | ZIO_COMPRESS_MASK(LZJB);
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for (int c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++)
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if (((1ULL << c) & mask) == 0)
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*cfuncp++ = c;
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/*
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* On the one hand, with SPA_MAXBLOCKSIZE at 16MB, this
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* could take a while and we should let the user know
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* we are not stuck. On the other hand, printing progress
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* info gets old after a while. User can specify 'v' flag
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* to see the progression.
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*/
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if (lsize == psize)
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lsize += SPA_MINBLOCKSIZE;
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else
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maxlsize = lsize;
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for (; lsize <= maxlsize; lsize += SPA_MINBLOCKSIZE) {
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for (cfuncp = cfuncs; *cfuncp; cfuncp++) {
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if (flags & ZDB_FLAG_VERBOSE) {
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(void) fprintf(stderr,
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"Trying %05llx -> %05llx (%s)\n",
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(u_longlong_t)psize,
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(u_longlong_t)lsize,
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zio_compress_table[*cfuncp].\
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ci_name);
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}
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/*
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* We randomize lbuf2, and decompress to both
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* lbuf and lbuf2. This way, we will know if
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* decompression fill exactly to lsize.
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*/
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VERIFY0(random_get_pseudo_bytes(lbuf2, lsize));
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if (zio_decompress_data(*cfuncp, pabd,
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lbuf, psize, lsize) == 0 &&
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zio_decompress_data(*cfuncp, pabd,
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lbuf2, psize, lsize) == 0 &&
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bcmp(lbuf, lbuf2, lsize) == 0)
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break;
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}
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if (*cfuncp != 0)
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break;
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}
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umem_free(lbuf2, SPA_MAXBLOCKSIZE);
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if (lsize > maxlsize) {
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boolean_t failed = zdb_decompress_block(pabd, buf, lbuf,
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lsize, psize, flags);
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if (failed) {
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(void) printf("Decompress of %s failed\n", thing);
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goto out;
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}
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buf = lbuf;
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if (*cfuncp == ZIO_COMPRESS_ZLE) {
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printf("\nZLE decompression was selected. If you "
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"suspect the results are wrong,\ntry avoiding ZLE "
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"by setting and exporting ZDB_NO_ZLE=\"true\"\n");
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}
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} else {
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buf = abd_borrow_buf_copy(pabd, lsize);
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borrowed = B_TRUE;
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}
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/*
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* Try to detect invalid block pointer. If invalid, try
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* decompressing.
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*/
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if ((flags & ZDB_FLAG_PRINT_BLKPTR || flags & ZDB_FLAG_INDIRECT) &&
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!(flags & ZDB_FLAG_DECOMPRESS)) {
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const blkptr_t *b = (const blkptr_t *)(void *)
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((uintptr_t)buf + (uintptr_t)blkptr_offset);
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if (zfs_blkptr_verify(spa, b, B_FALSE, BLK_VERIFY_ONLY) ==
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B_FALSE) {
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abd_return_buf_copy(pabd, buf, lsize);
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borrowed = B_FALSE;
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buf = lbuf;
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boolean_t failed = zdb_decompress_block(pabd, buf,
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lbuf, lsize, psize, flags);
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b = (const blkptr_t *)(void *)
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((uintptr_t)buf + (uintptr_t)blkptr_offset);
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if (failed || zfs_blkptr_verify(spa, b, B_FALSE,
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BLK_VERIFY_LOG) == B_FALSE) {
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printf("invalid block pointer at this DVA\n");
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goto out;
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}
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}
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}
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if (flags & ZDB_FLAG_PRINT_BLKPTR)
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zdb_print_blkptr((blkptr_t *)(void *)
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@ -6812,8 +6879,8 @@ zdb_read_block(char *thing, spa_t *spa)
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else if (flags & ZDB_FLAG_RAW)
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zdb_dump_block_raw(buf, lsize, flags);
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else if (flags & ZDB_FLAG_INDIRECT)
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zdb_dump_indirect((blkptr_t *)buf, lsize / sizeof (blkptr_t),
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flags);
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zdb_dump_indirect((blkptr_t *)buf,
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orig_lsize / sizeof (blkptr_t), flags);
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else if (flags & ZDB_FLAG_GBH)
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zdb_dump_gbh(buf, flags);
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else
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@ -6886,6 +6953,8 @@ zdb_read_block(char *thing, spa_t *spa)
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out:
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abd_free(pabd);
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umem_free(lbuf, SPA_MAXBLOCKSIZE);
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done:
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free(flagstr);
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free(dup);
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}
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@ -516,6 +516,12 @@ struct zio {
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taskq_ent_t io_tqent;
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};
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enum blk_verify_flag {
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BLK_VERIFY_ONLY,
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BLK_VERIFY_LOG,
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BLK_VERIFY_HALT
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};
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extern int zio_bookmark_compare(const void *, const void *);
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extern zio_t *zio_null(zio_t *pio, spa_t *spa, vdev_t *vd,
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@ -626,6 +632,9 @@ extern void zio_suspend(spa_t *spa, zio_t *zio, zio_suspend_reason_t);
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extern int zio_resume(spa_t *spa);
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extern void zio_resume_wait(spa_t *spa);
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extern boolean_t zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp,
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boolean_t config_held, enum blk_verify_flag blk_verify);
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/*
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* Initial setup and teardown.
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*/
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@ -286,7 +286,7 @@ of the block to read and, optionally,
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.Pp
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.Bl -tag -compact -width "b offset"
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.It Sy b Ar offset
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Print block pointer
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Print block pointer at hex offset
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.It Sy c
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Calculate and display checksums
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.It Sy d
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@ -890,35 +890,82 @@ zio_root(spa_t *spa, zio_done_func_t *done, void *private, enum zio_flag flags)
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return (zio_null(NULL, spa, NULL, done, private, flags));
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}
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static void
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zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp, boolean_t config_held)
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static int
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zfs_blkptr_verify_log(spa_t *spa, const blkptr_t *bp,
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enum blk_verify_flag blk_verify, const char *fmt, ...)
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{
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va_list adx;
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char buf[256];
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va_start(adx, fmt);
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(void) vsnprintf(buf, sizeof (buf), fmt, adx);
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va_end(adx);
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switch (blk_verify) {
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case BLK_VERIFY_HALT:
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zfs_panic_recover("%s: %s", spa_name(spa), buf);
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break;
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case BLK_VERIFY_LOG:
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zfs_dbgmsg("%s: %s", spa_name(spa), buf);
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break;
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case BLK_VERIFY_ONLY:
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break;
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}
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return (1);
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}
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/*
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* Verify the block pointer fields contain reasonable values. This means
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* it only contains known object types, checksum/compression identifiers,
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* block sizes within the maximum allowed limits, valid DVAs, etc.
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*
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* If everything checks out B_TRUE is returned. The zfs_blkptr_verify
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* argument controls the behavior when an invalid field is detected.
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*
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* Modes for zfs_blkptr_verify:
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* 1) BLK_VERIFY_ONLY (evaluate the block)
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* 2) BLK_VERIFY_LOG (evaluate the block and log problems)
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* 3) BLK_VERIFY_HALT (call zfs_panic_recover on error)
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*/
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boolean_t
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zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp, boolean_t config_held,
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||||
enum blk_verify_flag blk_verify)
|
||||
{
|
||||
int errors = 0;
|
||||
|
||||
if (!DMU_OT_IS_VALID(BP_GET_TYPE(bp))) {
|
||||
zfs_panic_recover("blkptr at %p has invalid TYPE %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p has invalid TYPE %llu",
|
||||
bp, (longlong_t)BP_GET_TYPE(bp));
|
||||
}
|
||||
if (BP_GET_CHECKSUM(bp) >= ZIO_CHECKSUM_FUNCTIONS ||
|
||||
BP_GET_CHECKSUM(bp) <= ZIO_CHECKSUM_ON) {
|
||||
zfs_panic_recover("blkptr at %p has invalid CHECKSUM %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p has invalid CHECKSUM %llu",
|
||||
bp, (longlong_t)BP_GET_CHECKSUM(bp));
|
||||
}
|
||||
if (BP_GET_COMPRESS(bp) >= ZIO_COMPRESS_FUNCTIONS ||
|
||||
BP_GET_COMPRESS(bp) <= ZIO_COMPRESS_ON) {
|
||||
zfs_panic_recover("blkptr at %p has invalid COMPRESS %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p has invalid COMPRESS %llu",
|
||||
bp, (longlong_t)BP_GET_COMPRESS(bp));
|
||||
}
|
||||
if (BP_GET_LSIZE(bp) > SPA_MAXBLOCKSIZE) {
|
||||
zfs_panic_recover("blkptr at %p has invalid LSIZE %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p has invalid LSIZE %llu",
|
||||
bp, (longlong_t)BP_GET_LSIZE(bp));
|
||||
}
|
||||
if (BP_GET_PSIZE(bp) > SPA_MAXBLOCKSIZE) {
|
||||
zfs_panic_recover("blkptr at %p has invalid PSIZE %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p has invalid PSIZE %llu",
|
||||
bp, (longlong_t)BP_GET_PSIZE(bp));
|
||||
}
|
||||
|
||||
if (BP_IS_EMBEDDED(bp)) {
|
||||
if (BPE_GET_ETYPE(bp) >= NUM_BP_EMBEDDED_TYPES) {
|
||||
zfs_panic_recover("blkptr at %p has invalid ETYPE %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p has invalid ETYPE %llu",
|
||||
bp, (longlong_t)BPE_GET_ETYPE(bp));
|
||||
}
|
||||
}
|
||||
@ -928,7 +975,7 @@ zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp, boolean_t config_held)
|
||||
* will be done once the zio is executed in vdev_mirror_map_alloc.
|
||||
*/
|
||||
if (!spa->spa_trust_config)
|
||||
return;
|
||||
return (B_TRUE);
|
||||
|
||||
if (!config_held)
|
||||
spa_config_enter(spa, SCL_VDEV, bp, RW_READER);
|
||||
@ -946,21 +993,21 @@ zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp, boolean_t config_held)
|
||||
uint64_t vdevid = DVA_GET_VDEV(&bp->blk_dva[i]);
|
||||
|
||||
if (vdevid >= spa->spa_root_vdev->vdev_children) {
|
||||
zfs_panic_recover("blkptr at %p DVA %u has invalid "
|
||||
"VDEV %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p DVA %u has invalid VDEV %llu",
|
||||
bp, i, (longlong_t)vdevid);
|
||||
continue;
|
||||
}
|
||||
vdev_t *vd = spa->spa_root_vdev->vdev_child[vdevid];
|
||||
if (vd == NULL) {
|
||||
zfs_panic_recover("blkptr at %p DVA %u has invalid "
|
||||
"VDEV %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p DVA %u has invalid VDEV %llu",
|
||||
bp, i, (longlong_t)vdevid);
|
||||
continue;
|
||||
}
|
||||
if (vd->vdev_ops == &vdev_hole_ops) {
|
||||
zfs_panic_recover("blkptr at %p DVA %u has hole "
|
||||
"VDEV %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p DVA %u has hole VDEV %llu",
|
||||
bp, i, (longlong_t)vdevid);
|
||||
continue;
|
||||
}
|
||||
@ -977,13 +1024,15 @@ zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp, boolean_t config_held)
|
||||
if (BP_IS_GANG(bp))
|
||||
asize = vdev_psize_to_asize(vd, SPA_GANGBLOCKSIZE);
|
||||
if (offset + asize > vd->vdev_asize) {
|
||||
zfs_panic_recover("blkptr at %p DVA %u has invalid "
|
||||
"OFFSET %llu",
|
||||
errors += zfs_blkptr_verify_log(spa, bp, blk_verify,
|
||||
"blkptr at %p DVA %u has invalid OFFSET %llu",
|
||||
bp, i, (longlong_t)offset);
|
||||
}
|
||||
}
|
||||
if (!config_held)
|
||||
spa_config_exit(spa, SCL_VDEV, bp);
|
||||
|
||||
return (errors == 0);
|
||||
}
|
||||
|
||||
boolean_t
|
||||
@ -1023,7 +1072,8 @@ zio_read(zio_t *pio, spa_t *spa, const blkptr_t *bp,
|
||||
{
|
||||
zio_t *zio;
|
||||
|
||||
zfs_blkptr_verify(spa, bp, flags & ZIO_FLAG_CONFIG_WRITER);
|
||||
(void) zfs_blkptr_verify(spa, bp, flags & ZIO_FLAG_CONFIG_WRITER,
|
||||
BLK_VERIFY_HALT);
|
||||
|
||||
zio = zio_create(pio, spa, BP_PHYSICAL_BIRTH(bp), bp,
|
||||
data, size, size, done, private,
|
||||
@ -1116,7 +1166,7 @@ void
|
||||
zio_free(spa_t *spa, uint64_t txg, const blkptr_t *bp)
|
||||
{
|
||||
|
||||
zfs_blkptr_verify(spa, bp, B_FALSE);
|
||||
(void) zfs_blkptr_verify(spa, bp, B_FALSE, BLK_VERIFY_HALT);
|
||||
|
||||
/*
|
||||
* The check for EMBEDDED is a performance optimization. We
|
||||
@ -1186,7 +1236,8 @@ zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, const blkptr_t *bp,
|
||||
{
|
||||
zio_t *zio;
|
||||
|
||||
zfs_blkptr_verify(spa, bp, flags & ZIO_FLAG_CONFIG_WRITER);
|
||||
(void) zfs_blkptr_verify(spa, bp, flags & ZIO_FLAG_CONFIG_WRITER,
|
||||
BLK_VERIFY_HALT);
|
||||
|
||||
if (BP_IS_EMBEDDED(bp))
|
||||
return (zio_null(pio, spa, NULL, NULL, NULL, 0));
|
||||
|
||||
@ -101,7 +101,8 @@ tags = ['functional', 'clean_mirror']
|
||||
[tests/functional/cli_root/zdb]
|
||||
tests = ['zdb_001_neg', 'zdb_002_pos', 'zdb_003_pos', 'zdb_004_pos',
|
||||
'zdb_005_pos', 'zdb_006_pos', 'zdb_checksum', 'zdb_decompress',
|
||||
'zdb_object_range_neg', 'zdb_object_range_pos', 'zdb_objset_id']
|
||||
'zdb_object_range_neg', 'zdb_object_range_pos', 'zdb_display_block',
|
||||
'zdb_objset_id']
|
||||
pre =
|
||||
post =
|
||||
tags = ['functional', 'cli_root', 'zdb']
|
||||
|
||||
@ -8,6 +8,7 @@ dist_pkgdata_SCRIPTS = \
|
||||
zdb_006_pos.ksh \
|
||||
zdb_checksum.ksh \
|
||||
zdb_decompress.ksh \
|
||||
zdb_objset_id.ksh \
|
||||
zdb_object_range_neg.ksh \
|
||||
zdb_object_range_pos.ksh
|
||||
zdb_object_range_pos.ksh \
|
||||
zdb_display_block.ksh \
|
||||
zdb_objset_id.ksh
|
||||
|
||||
128
tests/zfs-tests/tests/functional/cli_root/zdb/zdb_display_block.ksh
Executable file
128
tests/zfs-tests/tests/functional/cli_root/zdb/zdb_display_block.ksh
Executable file
@ -0,0 +1,128 @@
|
||||
#!/bin/ksh
|
||||
|
||||
#
|
||||
# This file and its contents are supplied under the terms of the
|
||||
# Common Development and Distribution License ("CDDL"), version 1.0.
|
||||
# You may only use this file in accordance with the terms of version
|
||||
# 1.0 of the CDDL.
|
||||
#
|
||||
# A full copy of the text of the CDDL should have accompanied this
|
||||
# source. A copy of the CDDL is also available via the Internet at
|
||||
# http://www.illumos.org/license/CDDL.
|
||||
#
|
||||
|
||||
#
|
||||
# Copyright (c) 2019 by Datto, Inc. All rights reserved.
|
||||
#
|
||||
|
||||
. $STF_SUITE/include/libtest.shlib
|
||||
|
||||
#
|
||||
# Description:
|
||||
# zdb -R pool <DVA>:b will display the block
|
||||
#
|
||||
# Strategy:
|
||||
# 1. Create a pool, set compression to lzjb
|
||||
# 2. Write some identifiable data to a file
|
||||
# 3. Run zdb -ddddddbbbbbb against the file
|
||||
# 4. Record the DVA of the first L1 block;
|
||||
# record the first L0 block display; and
|
||||
# record the 2nd L0 block display.
|
||||
# 5. Run zdb -R with :bd displays first L0
|
||||
# 6. Run zdb -R with :b80d displays 2nd L0
|
||||
# 7. Run zdb -R with :db80 displays 2nd L0
|
||||
# 8. Run zdb -R with :id flag displays indirect block
|
||||
# (similar to zdb -ddddddbbbbbb output)
|
||||
# 9. Run zdb -R with :id flag and .0 vdev
|
||||
#
|
||||
|
||||
|
||||
function cleanup
|
||||
{
|
||||
datasetexists $TESTPOOL && destroy_pool $TESTPOOL
|
||||
}
|
||||
|
||||
log_assert "Verify zdb -R :b flag (block display) works as expected"
|
||||
log_onexit cleanup
|
||||
init_data=$TESTDIR/file1
|
||||
write_count=256
|
||||
blksize=4096
|
||||
|
||||
# only read 256 128 byte block pointers in L1 (:i flag)
|
||||
# 256 x 128 = 32k / 0x8000
|
||||
l1_read_size="8000"
|
||||
|
||||
verify_runnable "global"
|
||||
verify_disk_count "$DISKS" 2
|
||||
|
||||
default_mirror_setup_noexit $DISKS
|
||||
log_must zfs set recordsize=$blksize $TESTPOOL/$TESTFS
|
||||
log_must zfs set compression=lzjb $TESTPOOL/$TESTFS
|
||||
|
||||
file_write -d R -o create -w -f $init_data -b $blksize -c $write_count
|
||||
sync_pool $TESTPOOL true
|
||||
|
||||
# get object number of file
|
||||
listing=$(ls -i $init_data)
|
||||
set -A array $listing
|
||||
obj=${array[0]}
|
||||
log_note "file $init_data has object number $obj"
|
||||
|
||||
output=$(zdb -ddddddbbbbbb $TESTPOOL/$TESTFS $obj 2> /dev/null \
|
||||
|grep -m 1 "L1 DVA" |head -n1)
|
||||
dva=$(sed -Ene 's/^.+DVA\[0\]=<([^>]+)>.*/\1/p' <<< "$output")
|
||||
log_note "first L1 block $init_data has a DVA of $dva"
|
||||
output=$(zdb -ddddddbbbbbb $TESTPOOL/$TESTFS $obj 2> /dev/null \
|
||||
|grep -m 1 "L0 DVA" |head -n1)
|
||||
blk_out0=${output##*>}
|
||||
blk_out0=${blk_out0##+([[:space:]])}
|
||||
|
||||
output=$(zdb -ddddddbbbbbb $TESTPOOL/$TESTFS $obj 2> /dev/null \
|
||||
|grep -m 1 "1000 L0 DVA" |head -n1)
|
||||
blk_out1=${output##*>}
|
||||
blk_out1=${blk_out1##+([[:space:]])}
|
||||
|
||||
output=$(export ZDB_NO_ZLE=\"true\"; zdb -R $TESTPOOL $dva:bd\
|
||||
2> /dev/null)
|
||||
output=${output##*>}
|
||||
output=${output##+([[:space:]])}
|
||||
if [ "$output" != "$blk_out0" ]; then
|
||||
log_fail "zdb -R :bd (block 0 display/decompress) failed"
|
||||
fi
|
||||
|
||||
output=$(export ZDB_NO_ZLE=\"true\"; zdb -R $TESTPOOL $dva:db80\
|
||||
2> /dev/null)
|
||||
output=${output##*>}
|
||||
output=${output##+([[:space:]])}
|
||||
if [ "$output" != "$blk_out1" ]; then
|
||||
log_fail "zdb -R :db80 (block 1 display/decompress) failed"
|
||||
fi
|
||||
|
||||
output=$(export ZDB_NO_ZLE=\"true\"; zdb -R $TESTPOOL $dva:b80d\
|
||||
2> /dev/null)
|
||||
output=${output##*>}
|
||||
output=${output##+([[:space:]])}
|
||||
if [ "$output" != "$blk_out1" ]; then
|
||||
log_fail "zdb -R :b80d (block 1 display/decompress) failed"
|
||||
fi
|
||||
|
||||
vdev=$(echo "$dva" |awk '{split($0,array,":")} END{print array[1]}')
|
||||
offset=$(echo "$dva" |awk '{split($0,array,":")} END{print array[2]}')
|
||||
output=$(export ZDB_NO_ZLE=\"true\";\
|
||||
zdb -R $TESTPOOL $vdev:$offset:$l1_read_size:id 2> /dev/null)
|
||||
block_cnt=$(echo "$output" | grep 'L0' | wc -l)
|
||||
if [ "$block_cnt" != "$write_count" ]; then
|
||||
log_fail "zdb -R :id (indirect block display) failed"
|
||||
fi
|
||||
|
||||
# read from specific half of mirror
|
||||
vdev="$vdev.0"
|
||||
log_note "Reading from DVA $vdev:$offset:$l1_read_size"
|
||||
output=$(export ZDB_NO_ZLE=\"true\";\
|
||||
zdb -R $TESTPOOL $vdev:$offset:$l1_read_size:id 2> /dev/null)
|
||||
block_cnt=$(echo "$output" | grep 'L0' | wc -l)
|
||||
if [ "$block_cnt" != "$write_count" ]; then
|
||||
log_fail "zdb -R 0.0:offset:length:id (indirect block display) failed"
|
||||
fi
|
||||
|
||||
log_pass "zdb -R :b flag (block display) works as expected"
|
||||
Loading…
Reference in New Issue
Block a user