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-rw-r--r--qa/rbd/krbd_msgr_segments.t85
1 files changed, 85 insertions, 0 deletions
diff --git a/qa/rbd/krbd_msgr_segments.t b/qa/rbd/krbd_msgr_segments.t
new file mode 100644
index 000000000..b89a921a1
--- /dev/null
+++ b/qa/rbd/krbd_msgr_segments.t
@@ -0,0 +1,85 @@
+
+ $ get_block_name_prefix() {
+ > rbd info --format=json $1 | python3 -c "import sys, json; print(json.load(sys.stdin)['block_name_prefix'])"
+ > }
+
+Short segments:
+
+ $ rbd create --size 12M img
+ $ DEV=$(sudo rbd map img)
+ $ xfs_io -d -c 'pwrite 5120 512' $DEV >/dev/null
+ $ xfs_io -d -c 'pwrite 12577280 512' $DEV >/dev/null
+ $ hexdump $DEV
+ 0000000 0000 0000 0000 0000 0000 0000 0000 0000
+ *
+ 0001400 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
+ *
+ 0001600 0000 0000 0000 0000 0000 0000 0000 0000
+ *
+ 0bfea00 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
+ *
+ 0bfec00 0000 0000 0000 0000 0000 0000 0000 0000
+ *
+ 0c00000
+ $ sudo rbd unmap $DEV
+ $ rbd rm --no-progress img
+
+Short segment, ceph_msg_data_bio_cursor_init():
+
+ $ rbd create --size 12M img
+ $ DEV=$(sudo rbd map img)
+ $ xfs_io -d -c 'pwrite 0 512' $DEV >/dev/null
+ $ rados -p rbd stat $(get_block_name_prefix img).0000000000000000
+ .* size 512 (re)
+ $ xfs_io -d -c 'pread -b 2M 0 2M' $DEV >/dev/null
+ $ hexdump $DEV
+ 0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
+ *
+ 0000200 0000 0000 0000 0000 0000 0000 0000 0000
+ *
+ 0c00000
+ $ sudo rbd unmap $DEV
+ $ rbd rm --no-progress img
+
+Short segment, ceph_msg_data_bio_advance():
+
+ $ rbd create --size 12M img
+ $ DEV=$(sudo rbd map img)
+ $ xfs_io -d -c 'pwrite 0 1049088' $DEV >/dev/null
+ $ rados -p rbd stat $(get_block_name_prefix img).0000000000000000
+ .* size 1049088 (re)
+ $ xfs_io -d -c 'pread -b 2M 0 2M' $DEV >/dev/null
+ $ hexdump $DEV
+ 0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
+ *
+ 0100200 0000 0000 0000 0000 0000 0000 0000 0000
+ *
+ 0c00000
+ $ sudo rbd unmap $DEV
+ $ rbd rm --no-progress img
+
+Cloned bios (dm-snapshot.ko, based on generic/081):
+
+ $ rbd create --size 300M img
+ $ DEV=$(sudo rbd map img)
+ $ sudo vgcreate vg_img $DEV
+ Physical volume "/dev/rbd?" successfully created* (glob)
+ Volume group "vg_img" successfully created
+ $ sudo lvcreate -L 256M -n lv_img vg_img
+ Logical volume "lv_img" created.
+ $ udevadm settle
+ $ sudo mkfs.ext4 -q /dev/mapper/vg_img-lv_img
+ $ sudo lvcreate -L 4M --snapshot -n lv_snap vg_img/lv_img | grep created
+ Logical volume "lv_snap" created.
+ $ udevadm settle
+ $ sudo mount /dev/mapper/vg_img-lv_snap /mnt
+ $ sudo xfs_io -f -c 'pwrite 0 5M' /mnt/file1 >/dev/null
+ $ sudo umount /mnt
+ $ sudo vgremove -f vg_img
+ Logical volume "lv_snap" successfully removed
+ Logical volume "lv_img" successfully removed
+ Volume group "vg_img" successfully removed
+ $ sudo pvremove $DEV
+ Labels on physical volume "/dev/rbd?" successfully wiped* (glob)
+ $ sudo rbd unmap $DEV
+ $ rbd rm --no-progress img