[root@ceph-s1 ~]# ceph -v
ceph version 14.2.2 (4f8fa0a0024755aae7d95567c63f11d6862d55be) nautilus (stable)

[root@ceph-s1 ~]# ceph health detail
HEALTH_ERR 22 scrub errors; Possible data damage: 2 pgs inconsistent
OSD_SCRUB_ERRORS 22 scrub errors
PG_DAMAGED Possible data damage: 2 pgs inconsistent
    pg 2.2a7 is active+clean+inconsistent+failed_repair, acting [83,60,133,326,281,162,180,172,144,219]
    pg 2.36b is active+clean+inconsistent+failed_repair, acting [254,268,10,262,32,280,211,114,169,53]

[root@ceph-n10 ~]# ceph pg repair 2.2a7

[root@ceph-n10 ~]# grep "2.2a7" /var/log/ceph/ceph-osd.83.log
2019-10-01 07:05:02.459 7f9adab4b700  0 log_channel(cluster) log [DBG] : 2.2a7 repair starts
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 83(0) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 60(1) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 133(2) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 144(8) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 162(5) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 172(7) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 180(6) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 219(9) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 281(4) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 shard 326(3) soid 2:e5472cab:::1000702081f.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 soid 2:e5472cab:::1000702081f.00000000:head : failed to pick suitable object info
2019-10-01 07:11:41.589 7f9adab4b700 -1 log_channel(cluster) log [ERR] : repair 2.2a7s0 2:e5472cab:::1000702081f.00000000:head : on disk size (4096) does not match object info size (0) adjusted for ondisk to (0)
2019-10-01 07:19:47.060 7f9adab4b700 -1 log_channel(cluster) log [ERR] : 2.2a7 repair 11 errors, 0 fixed


[root@ceph-s1 ~]#  ceph pg repair 2.36b

[root@ceph-n29 ~]# grep "2.36b" /var/log/ceph/ceph-osd.254.log
2019-10-01 11:15:12.215 7fa01f589700  0 log_channel(cluster) log [DBG] : 2.36b repair starts
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 254(0) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 10(2) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 32(4) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 53(9) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 114(7) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 169(8) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 211(6) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 262(3) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 268(1) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b shard 280(5) soid 2:d6cac754:::100070209f6.00000000:head : candidate size 4096 info size 0 mismatch
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b soid 2:d6cac754:::100070209f6.00000000:head : failed to pick suitable object info
2019-10-01 11:25:12.241 7fa01f589700 -1 log_channel(cluster) log [ERR] : repair 2.36bs0 2:d6cac754:::100070209f6.00000000:head : on disk size (4096) does not match object info size (0) adjusted for ondisk to (0)
2019-10-01 11:30:10.573 7fa01f589700 -1 log_channel(cluster) log [ERR] : 2.36b repair 11 errors, 0 fixed

Is this related to: https://tracker.ceph.com/journals/145118/diff?detail_id=147260 ?