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authorPaul Zuchowski <[email protected]>2019-12-03 17:37:15 -0500
committerBrian Behlendorf <[email protected]>2019-12-03 14:37:15 -0800
commit5a089773742b0c48a7baea32194566ac2987be7d (patch)
treebd8bcce9edd5c905a8eb8f9cc1fed6f68f5ceb03 /cmd
parent54c8366e3984b710dc2ce99ffdce6dfb15e8eecf (diff)
Fix zdb_read_block using zio after it is destroyed
The checksum display code of zdb_read_block uses a zio to read in the block and then calls zio_checksum_compute. Use a new zio in the call to zio_checksum_compute not the zio from the read which has been destroyed by zio_wait. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Igor Kozhukhov <[email protected]> Signed-off-by: Paul Zuchowski <[email protected]> Closes #9644 Closes #9657
Diffstat (limited to 'cmd')
-rw-r--r--cmd/zdb/zdb.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/cmd/zdb/zdb.c b/cmd/zdb/zdb.c
index 2d35bd0f9..3cdd7f2c1 100644
--- a/cmd/zdb/zdb.c
+++ b/cmd/zdb/zdb.c
@@ -6608,13 +6608,18 @@ zdb_read_block(char *thing, spa_t *spa)
}
error = zio_wait(czio);
if (error == 0 || error == ECKSUM) {
- zio_checksum_compute(czio, ck, pabd, lsize);
+ zio_t *ck_zio = zio_root(spa, NULL, NULL, 0);
+ ck_zio->io_offset =
+ DVA_GET_OFFSET(&bp->blk_dva[0]);
+ ck_zio->io_bp = bp;
+ zio_checksum_compute(ck_zio, ck, pabd, lsize);
printf("%12s\tcksum=%llx:%llx:%llx:%llx\n",
zio_checksum_table[ck].ci_name,
(u_longlong_t)bp->blk_cksum.zc_word[0],
(u_longlong_t)bp->blk_cksum.zc_word[1],
(u_longlong_t)bp->blk_cksum.zc_word[2],
(u_longlong_t)bp->blk_cksum.zc_word[3]);
+ zio_wait(ck_zio);
} else {
printf("error %d reading block\n", error);
}