[Samba] Bug 15346 - 2-3min delays at reconnect with smb2_validate_sequence_number: bad message_id 2 still on new 4.17.10

[Matthias Leopold]

Hi everybody,

Am 21.07.23 um 10:39 schrieb Daniel Müller via samba:
> Hello to all,
> 
> I can confirm, that the bug, smb2_validate_sequence_number:
> Jul 21 08:22:44 dom2 smbd[1908004]:   smb2_validate_sequence_number:
> smb2_validate_sequence_number: bad message_id 2 (sequence id 2) (granted =
> 1, low = 1, range = 1)
> Jul 21 09:24:39 dom2 smbd[1908332]: [2023/07/21 09:24:39.140658,  0]
> ../../source3/smbd/smb2_server.c:677(smb2_validate_sequence_number)
> Jul 21 09:24:39 dom2 smbd[1908332]:   smb2_validate_sequence_number:
> smb2_validate_sequence_number: bad message_id 2 (sequence id 2) (granted =
> 1, low = 1, range = 1)
> Jul 21 09:25:54 dom2 smbd[1908342]: [2023/07/21 09:25:54.376344,  0]
> ../../source3/smbd/smb2_server.c:677(smb2_validate_sequence_number)
> Jul 21 09:25:54 dom2 smbd[1908342]:   smb2_validate_sequence_number:
> smb2_validate_sequence_number: bad message_id 2 (sequence id 2) (granted =
> 1, low = 1, range = 1)
> Jul 21 09:57:45 dom2 smbd[1908564]: [2023/07/21 09:57:45.419341,  0]
> ../../source3/smbd/smb2_server.c:677(smb2_validate_sequence_number)
> Jul 21 09:57:45 dom2 smbd[1908564]:   smb2_validate_sequence_number:
> smb2_validate_sequence_number: bad message_id 2 (sequence id 2) (granted =
> 1, low = 1, range = 1)
> Jul 21 10:02:29 dom2 smbd[1908588]: [2023/07/21 10:02:29.417950,  0]
> ../../source3/smbd/smb2_server.c:677(smb2_validate_sequence_number)
> Jul 21 10:02:29 dom2 smbd[1908588]:   smb2_validate_sequence_number:
> smb2_validate_sequence_number: bad message_id 2 (sequence id 2) (granted =
> 1, low = 1, range = 1)
> 
> Is still on in new 4.17.10.
> Is there a solution?
> 
I can confirm I'm also seeing this after upgrading our AD DC servers 
from 4.16 to 4.17.10 in DC log. I noticed a delay in accessing AD 
objects from Windows ADUC tool. I haven't seen problems on fileservers 
(still 4.16) yet, but all this doesn't give me a very good feeling. 
Would be happy to see a solution/workaround/explanation.

Thanks,
Matthias