btrfs-progs-4.3.1-1.fc23.x86_64 Summary: Whenever using -e alone to send a sequence of snapshots, it fails with multiple errors: ERROR: parent determination failed for 0 ERROR: unexpected EOF in stream. Detail: It does not matter if -e is used alone with a complete set of related snapshots, i.e. btrfs send -e testsub.0 testsub.1 testsub.2 testsub.3 testsub.4 | btrfs receive /brick1 Or if the first snapshots is first sent, then subsequent snapshots use -p and -e, such as: btrfs send testsub.0 | btrfs receive /brick1 btrfs send -p testsub.0 -e testsub.1 testsub.2 testsub.3 testsub.4 | btrfs receive /brick1 Error is the same in both cases: ERROR: parent determination failed for 0 ERROR: unexpected EOF in stream. Additional information: The conventional way to do this works with these snapshots, i.e. btrfs send testsub.0 | btrfs receive /brick1/ btrfs send -p testsub.0 testsub.1 | btrfs receive /brick1/ btrfs send -p testsub.1 testsub.2 | btrfs receive /brick1/ btrfs send -p testsub.2 testsub.3 | btrfs receive /brick1/ btrfs send -p testsub.3 testsub.4 | btrfs receive /brick1/ Verbose option for send and receive results: [root@f23s ~]# btrfs send -vvv -e testsub.0 testsub.1 testsub.2 testsub.3 testsub.4 | btrfs receive -vvv /brick1/ At subvol testsub.0 At subvol testsub.0 receiving subvol testsub.0 uuid=76e40d60-3b29-b045-a2d7-909ebdbf46f3, stransid=134474 chown - uid=0, gid=0 chmod - mode=0755 utimes mkdir o257-134474-0 rename o257-134474-0 -> temp utimes set_xattr temp - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 chown temp - uid=0, gid=0 chmod temp - mode=0755 utimes temp mkfile o258-134474-0 rename o258-134474-0 -> temp/cockpit-kubernetes-0.91-1.fc23.x86_64.rpm utimes temp set_xattr temp/cockpit-kubernetes-0.91-1.fc23.x86_64.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-kubernetes-0.91-1.fc23.x86_64.rpm size=112022 chown temp/cockpit-kubernetes-0.91-1.fc23.x86_64.rpm - uid=0, gid=0 chmod temp/cockpit-kubernetes-0.91-1.fc23.x86_64.rpm - mode=0644 utimes temp/cockpit-kubernetes-0.91-1.fc23.x86_64.rpm mkfile o259-134474-0 rename o259-134474-0 -> temp/cockpit-ws-0.91-1.fc23.x86_64.rpm utimes temp set_xattr temp/cockpit-ws-0.91-1.fc23.x86_64.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-ws-0.91-1.fc23.x86_64.rpm size=453854 chown temp/cockpit-ws-0.91-1.fc23.x86_64.rpm - uid=0, gid=0 chmod temp/cockpit-ws-0.91-1.fc23.x86_64.rpm - mode=0644 utimes temp/cockpit-ws-0.91-1.fc23.x86_64.rpm mkfile o260-134474-0 rename o260-134474-0 -> temp/cockpit-pcp-0.91-1.fc23.x86_64.rpm utimes temp set_xattr temp/cockpit-pcp-0.91-1.fc23.x86_64.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-pcp-0.91-1.fc23.x86_64.rpm size=64270 chown temp/cockpit-pcp-0.91-1.fc23.x86_64.rpm - uid=0, gid=0 chmod temp/cockpit-pcp-0.91-1.fc23.x86_64.rpm - mode=0644 utimes temp/cockpit-pcp-0.91-1.fc23.x86_64.rpm mkfile o261-134474-0 rename o261-134474-0 -> temp/cockpit-ostree-0.91-1.fc23.x86_64.rpm utimes temp set_xattr temp/cockpit-ostree-0.91-1.fc23.x86_64.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-ostree-0.91-1.fc23.x86_64.rpm size=28146 chown temp/cockpit-ostree-0.91-1.fc23.x86_64.rpm - uid=0, gid=0 chmod temp/cockpit-ostree-0.91-1.fc23.x86_64.rpm - mode=0644 utimes temp/cockpit-ostree-0.91-1.fc23.x86_64.rpm mkfile o262-134474-0 rename o262-134474-0 -> temp/cockpit-docker-0.91-1.fc23.x86_64.rpm utimes temp set_xattr temp/cockpit-docker-0.91-1.fc23.x86_64.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-docker-0.91-1.fc23.x86_64.rpm size=45666 chown temp/cockpit-docker-0.91-1.fc23.x86_64.rpm - uid=0, gid=0 chmod temp/cockpit-docker-0.91-1.fc23.x86_64.rpm - mode=0644 utimes temp/cockpit-docker-0.91-1.fc23.x86_64.rpm mkfile o263-134474-0 rename o263-134474-0 -> temp/cockpit-bridge-0.91-1.fc23.x86_64.rpm utimes temp set_xattr temp/cockpit-bridge-0.91-1.fc23.x86_64.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-bridge-0.91-1.fc23.x86_64.rpm size=162666 chown temp/cockpit-bridge-0.91-1.fc23.x86_64.rpm - uid=0, gid=0 chmod temp/cockpit-bridge-0.91-1.fc23.x86_64.rpm - mode=0644 utimes temp/cockpit-bridge-0.91-1.fc23.x86_64.rpm mkfile o264-134474-0 rename o264-134474-0 -> temp/cockpit-0.91-1.fc23.x86_64.rpm utimes temp set_xattr temp/cockpit-0.91-1.fc23.x86_64.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-0.91-1.fc23.x86_64.rpm size=38914 chown temp/cockpit-0.91-1.fc23.x86_64.rpm - uid=0, gid=0 chmod temp/cockpit-0.91-1.fc23.x86_64.rpm - mode=0644 utimes temp/cockpit-0.91-1.fc23.x86_64.rpm mkfile o265-134474-0 rename o265-134474-0 -> temp/cockpit-doc-0.91-1.fc23.x86_64.rpm utimes temp set_xattr temp/cockpit-doc-0.91-1.fc23.x86_64.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-doc-0.91-1.fc23.x86_64.rpm size=82286 chown temp/cockpit-doc-0.91-1.fc23.x86_64.rpm - uid=0, gid=0 chmod temp/cockpit-doc-0.91-1.fc23.x86_64.rpm - mode=0644 utimes temp/cockpit-doc-0.91-1.fc23.x86_64.rpm mkfile o266-134474-0 rename o266-134474-0 -> temp/cockpit-sosreport-0.91-1.fc23.noarch.rpm utimes temp set_xattr temp/cockpit-sosreport-0.91-1.fc23.noarch.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-sosreport-0.91-1.fc23.noarch.rpm size=29510 chown temp/cockpit-sosreport-0.91-1.fc23.noarch.rpm - uid=0, gid=0 chmod temp/cockpit-sosreport-0.91-1.fc23.noarch.rpm - mode=0644 utimes temp/cockpit-sosreport-0.91-1.fc23.noarch.rpm mkfile o267-134474-0 rename o267-134474-0 -> temp/cockpit-subscriptions-0.91-1.fc23.noarch.rpm utimes temp set_xattr temp/cockpit-subscriptions-0.91-1.fc23.noarch.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-subscriptions-0.91-1.fc23.noarch.rpm size=26394 chown temp/cockpit-subscriptions-0.91-1.fc23.noarch.rpm - uid=0, gid=0 chmod temp/cockpit-subscriptions-0.91-1.fc23.noarch.rpm - mode=0644 utimes temp/cockpit-subscriptions-0.91-1.fc23.noarch.rpm mkfile o268-134474-0 rename o268-134474-0 -> temp/cockpit-storaged-0.91-1.fc23.noarch.rpm utimes temp set_xattr temp/cockpit-storaged-0.91-1.fc23.noarch.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-storaged-0.91-1.fc23.noarch.rpm size=44470 chown temp/cockpit-storaged-0.91-1.fc23.noarch.rpm - uid=0, gid=0 chmod temp/cockpit-storaged-0.91-1.fc23.noarch.rpm - mode=0644 utimes temp/cockpit-storaged-0.91-1.fc23.noarch.rpm mkfile o269-134474-0 rename o269-134474-0 -> temp/cockpit-shell-0.91-1.fc23.noarch.rpm utimes temp set_xattr temp/cockpit-shell-0.91-1.fc23.noarch.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-shell-0.91-1.fc23.noarch.rpm size=630666 BTRFS_IOC_SEND returned 0 joining genl thread At subvol testsub.1 ERROR: parent determination failed for 0 chown temp/cockpit-shell-0.91-1.fc23.noarch.rpm - uid=0, gid=0 chmod temp/cockpit-shell-0.91-1.fc23.noarch.rpm - mode=0644 utimes temp/cockpit-shell-0.91-1.fc23.noarch.rpm mkfile o270-134474-0 rename o270-134474-0 -> temp/cockpit-networkmanager-0.91-1.fc23.noarch.rpm utimes temp set_xattr temp/cockpit-networkmanager-0.91-1.fc23.noarch.rpm - name=security.selinux data_len=38 data=unconfined_u:object_r:admin_home_t:s0 truncate temp/cockpit-networkmanager-0.91-1.fc23.noarch.rpm size=37322 chown temp/cockpit-networkmanager-0.91-1.fc23.noarch.rpm - uid=0, gid=0 chmod temp/cockpit-networkmanager-0.91-1.fc23.noarch.rpm - mode=0644 utimes temp/cockpit-networkmanager-0.91-1.fc23.noarch.rpm ERROR: unexpected EOF in stream.
I posted the following patches to Btrfs-ML. [PATCH v2 1/3] btrfs-progs: send: remove unnecessary code [PATCH 2/3] btrfs-progs: send: fix handling of multiple snapshots (-p option) [PATCH 3/3] btrfs-progs: send: fix handling of -c option If you have test environment, could you apply these patch to btrfs-progs v4.8.1 and test?