Netatalk 2.2.2 disconnection

[Phill]

I've just upgraded net/netatalk from 2.2.1 -> 2.2.2 and I am no longer able to browse volumes in the Finder in Mac OS X 10.7.3.
Authentication seems to work fine and the volume mounts but as soon as I try to browse certain directories I get disconnected with the message "The file server [my server] has closed down".
It seems to be related to these entries in the logs - afp_read…. : ad_readfile: Resource temporarily unavailable

I've checked the Netatalk mailing lists and can't find any similar issues so I'm wondering if it's FreeBSD port specific.
Any ideas why this is occurring?

Apr 28 08:47:34.424959 afpd[31744] {auth.c:690} (E:AFPDaemon): afp_disconnect: primary reconnect failed
Apr 28 08:47:34.588268 afpd[31744] {volume.c:2133} (I:AFPDaemon): CNID server: localhost:4700
Apr 28 08:47:34.594545 afpd[31744] {dsi_stream.c:108} (E:DSI): dsi_peek: EOF
Apr 28 08:47:34.594795 afpd[31744] {fork.c:951} (E:AFPDaemon): afp_read(biglietto_omaggio.ai): ad_readfile: Resource temporarily unavailable
Apr 28 08:47:34.594860 afpd[31744] {fork.c:980} (E:AFPDaemon): afp_read(biglietto_omaggio.ai): Resource temporarily unavailable
Apr 28 08:47:34.595031 afpd[31744] {dsi_stream.c:418} (E:DSI): dsi_stream_read: len:0, unexpected EOF
Apr 28 08:47:34.595058 afpd[31744] {dsi_stream.c:247} (N:DSI): dsi_disconnect: entering disconnected state
Apr 28 08:47:34.693389 afpd[32454] {dsi_tcp.c:212} (I:DSI): AFP/TCP session from 192.168.200.19:63002
Apr 28 08:47:34.694293 afpd[32454] {uams_dhx2_pam.c:321} (I:UAMS): DHX2 login: shares
Apr 28 08:47:34.728424 afpd[32454] {uams_dhx2_pam.c:210} (I:UAMS): PAM DHX2: PAM Success
Apr 28 08:47:34.729649 afpd[32454] {uams_dhx2_pam.c:210} (I:UAMS): PAM DHX2: PAM Success
Apr 28 08:47:34.729929 afpd[32454] {uams_dhx2_pam.c:698} (I:UAMS): DHX2: PAM Auth OK!
Apr 28 08:47:34.729960 afpd[32454] {auth.c:270} (N:AFPDaemon): AFP3.3 Login by shares
Apr 28 08:47:34.730911 afpd[32454] {auth.c:657} (N:AFPDaemon): afp_disconnect: trying primary reconnect
Apr 28 08:47:34.731043 afpd[54962] {server_child.c:306} (N:Default): Reconnect: transfering session to child[31744]
Apr 28 08:47:34.731168 afpd[54962] {server_ipc.c:290} (N:AFPDaemon): Reconnect: killing new session child[32454] after transfer
Apr 28 08:47:34.731203 afpd[31744] {afp_dsi.c:198} (N:AFPDaemon): afp_dsi_transfer_session: succesfull primary reconnect
Apr 28 08:47:34.731591 afpd[31744] {afp_dsi.c:600} (N:AFPDaemon): AFP Replay Cache match: id: 342 / cmd: AFP_READ_EXT
Apr 28 08:47:34.731655 afpd[31744] {afp_dsi.c:600} (N:AFPDaemon): AFP Replay Cache match: id: 343 / cmd: AFP_OPENFORK
Apr 28 08:47:34.732053 afpd[31744] {fork.c:853} (E:AFPDaemon): afp_read: of_find(19) could not locate fork
Apr 28 08:47:34.732400 afpd[31744] {fork.c:1128} (E:AFPDaemon): afp_closefork: of_find(256) could not locate fork
Apr 28 08:47:34.747665 afpd[31744] {dsi_stream.c:108} (E:DSI): dsi_peek: EOF
Apr 28 08:47:34.747800 afpd[31744] {dsi_stream.c:418} (E:DSI): dsi_stream_read: len:0, unexpected EOF
Apr 28 08:47:34.747831 afpd[31744] {dsi_stream.c:418} (E:DSI): dsi_stream_read: len:0, unexpected EOF
Apr 28 08:47:34.747888 afpd[31744] {dsi_stream.c:247} (N:DSI): dsi_disconnect: entering disconnected state
Apr 28 08:47:34.834608 afpd[32527] {dsi_tcp.c:212} (I:DSI): AFP/TCP session from 192.168.200.19:63003
Apr 28 08:47:34.835473 afpd[32527] {uams_dhx2_pam.c:321} (I:UAMS): DHX2 login: shares
Apr 28 08:47:34.869855 afpd[32527] {uams_dhx2_pam.c:210} (I:UAMS): PAM DHX2: PAM Success
Apr 28 08:47:34.870896 afpd[32527] {uams_dhx2_pam.c:210} (I:UAMS): PAM DHX2: PAM Success
Apr 28 08:47:34.871140 afpd[32527] {uams_dhx2_pam.c:698} (I:UAMS): DHX2: PAM Auth OK!
Apr 28 08:47:34.871170 afpd[32527] {auth.c:270} (N:AFPDaemon): AFP3.3 Login by shares
Apr 28 08:47:34.871819 afpd[32527] {auth.c:657} (N:AFPDaemon): afp_disconnect: trying primary reconnect
Apr 28 08:47:34.871922 afpd[54962] {server_child.c:306} (N:Default): Reconnect: transfering session to child[31744]
Apr 28 08:47:34.872039 afpd[54962] {server_ipc.c:290} (N:AFPDaemon): Reconnect: killing new session child[32527] after transfer
Apr 28 08:47:34.872091 afpd[31744] {afp_dsi.c:198} (N:AFPDaemon): afp_dsi_transfer_session: succesfull primary reconnect
Apr 28 08:47:34.949648 afpd[31744] {fork.c:951} (E:AFPDaemon): afp_read(biglietto_omaggio.ai): ad_readfile: Resource temporarily unavailable
Apr 28 08:47:34.949735 afpd[31744] {fork.c:980} (E:AFPDaemon): afp_read(biglietto_omaggio.ai): Resource temporarily unavailable
Apr 28 08:47:34.950248 afpd[31744] {afp_dsi.c:99} (N:AFPDaemon): AFP statistics: 1.68 KB read, 33.56 KB written
Apr 28 08:47:34.950323 afpd[31744] {dircache.c:616} (I:AFPDaemon): dircache statistics: entries: 3, lookups: 22, hits: 19, misses: 3, added: 3, removed: 0, expunged: 0, evicted: 0
Apr 28 08:47:34.950391 afpd[31744] {afp_dsi.c:128} (I:AFPDaemon): Connection terminated
Apr 28 08:47:34.951103 afpd[54962] {main.c:214} (I:AFPDaemon): child[31744]: exited 1
Apr 28 08:47:36.731434 afpd[32454] {auth.c:682} (N:AFPDaemon): afp_disconnect: primary reconnect succeeded
Apr 28 08:47:36.732196 afpd[54962] {main.c:216} (I:AFPDaemon): child[32454]: done
Apr 28 08:47:36.872730 afpd[32527] {auth.c:682} (N:AFPDaemon): afp_disconnect: primary reconnect succeeded
Apr 28 08:47:36.873537 afpd[54962] {main.c:216} (I:AFPDaemon): child[32527]: done

Regards
Phill