[Samba] Bad message_id occasionally when connecting a MacOS to a freebsd running 4.8.2

[Jeremy Allison]

On Wed, Jun 20, 2018 at 03:40:48PM +0200, Are via samba wrote:
> Hi,
> I am running Samba 4.8.2 with fruit and use it to connect a MacOS to the server. Mostly it works very good, but occasionally the connection halts or the Mac disconnects, and in the log I find these messages:
> 
> Jun 20 13:00:00 orca smbd[6033]: [2018/06/20 13:00:00.856101,  0] ../source3/smbd/smb2_server.c:641(smb2_validate_sequence_number)
> Jun 20 13:00:00 orca smbd[6033]:   smb2_validate_sequence_number: smb2_validate_sequence_number: bad message_id 4217 (sequence id 4287) (granted = 325, low = 3775, range = 512)
> Jun 20 13:00:33 orca smbd[38213]: [2018/06/20 13:00:33.713824,  0] ../source3/smbd/smb2_server.c:641(smb2_validate_sequence_number)
> Jun 20 13:00:33 orca smbd[38213]:   smb2_validate_sequence_number: smb2_validate_sequence_number: bad message_id 4779 (sequence id 4785) (granted = 261, low = 4273, range = 512)
> Jun 20 13:01:10 orca smbd[92724]: [2018/06/20 13:01:10.074249,  0] ../source3/smbd/smb2_server.c:641(smb2_validate_sequence_number)
> Jun 20 13:01:10 orca smbd[92724]:   smb2_validate_sequence_number: smb2_validate_sequence_number: bad message_id 520 (sequence id 520) (granted = 9, low = 8, range = 512)
> Jun 20 13:01:51 orca smbd[75754]: [2018/06/20 13:01:51.152858,  0] ../source3/smbd/smb2_server.c:641(smb2_validate_sequence_number)
> Jun 20 13:01:51 orca smbd[75754]:   smb2_validate_sequence_number: smb2_validate_sequence_number: bad message_id 520 (sequence id 520) (granted = 8, low = 8, range = 512)
> Jun 20 13:05:10 orca smbd[61155]: [2018/06/20 13:05:10.594843,  0] ../source3/smbd/smb2_server.c:641(smb2_validate_sequence_number)
> Jun 20 13:05:10 orca smbd[61155]:   smb2_validate_sequence_number: smb2_validate_sequence_number: bad message_id 4789 (sequence id 4794) (granted = 260, low = 4282, range = 512)
> 
> Is there something I can do?

My suspision here is with the MacOSX SMB2 credit handling. Have
you asked Apple ?