Created attachment 11175 [details]
smb.log, smb.conf and a tcpdump on port 445

target server is 4.2.2 with catia fruit and streams_xattr enabled.

source is macos 10.9.5 connected to server with smb2

filecopy is fine

to copy a single folder or folder with subfolder/data throws error -36.
when copy a folder with subfolders and data, everything gets effectively copied but the finder throws this error on 
last write i assume.

but when i copy the subfolders with data (so not the root folder containing these subfolders and data), the finder
throws this error on the first folder copied to the server and stops there.

copied from client to server, or from server to same server via finder.
terminal copy is ok (did not use cp -X)

macos log says:
16.06.15 17:19:54,000 kernel[0]: smb_ntstatus_error_to_errno: Couldn't map ntstatus (0xc0000225) to errno returning EIO
16.06.15 17:19:54,000 kernel[0]: smb2fs_smb_cmpd_set_info: Second close failed 9
16.06.15 17:19:54,000 kernel[0]: smb_ntstatus_error_to_errno: Couldn't map ntstatus (0xc0000225) to errno returning EIO

server config is attached with testparm -v
server debug log level 10 and packet capture with 'tcpdump -s 0 -w mycapture.pcap port 445' is also attached
all three files as tar.gz

the pcap and log were created on capturing the copy event of a single folder called "DESKTOPFOLDER" from the
macos desktop to the server "SERVERFOLDER".

to avoid some save errors within adobe illustrator the macos client has enabled the follwing option in /etc/nsmb.conf:
[global]
file_ids_off=yes

the finder error -36 also occurs without this option set on the client.

the error stops as soon as streams_xattr are not set any longer.

with macos 10.10 yosemite the finder does not generate this error.

kind regards,
sascha