[Samba] smbd fails to start after upgrade to version 4.11.6

[Rowland penny]

On 29/01/2020 19:43, Roy Eastwood via samba wrote:
> On 29 January 2020 18:09 Rowland penny wrote:
>>> On 29/01/2020 18:01, Roy Eastwood via samba wrote:
> [..snip..]
>
>>> Jan 29 17:38:17 pi4b smbd[585]:   open_sockets_smbd: No sockets available to bind to.
>>> Jan 29 17:38:17 pi4b smbd[585]: [2020/01/29 17:38:17.673510,  0] ../../source3/lib/util.c:824(smb_panic_s3)
>>> Jan 29 17:38:17 pi4b smbd[585]:   PANIC (pid 585): open_sockets_smbd() failed
>>> Jan 29 17:38:17 pi4b smbd[585]: [2020/01/29 17:38:17.674090,  0] ../../lib/util/fault.c:265(log_stack_trace)
>>> Jan 29 17:38:17 pi4b smbd[585]:   BACKTRACE: 0 stack frames:
>>> Jan 29 17:38:17 pi4b smbd[585]: [2020/01/29 17:38:17.674275,  0] ../../source3/lib/dumpcore.c:315(dump_core)
>>> Jan 29 17:38:17 pi4b smbd[585]:   dumping core in /var/log/samba/cores/smbd
>>> Jan 29 17:38:17 pi4b smbd[585]:
>>> Jan 29 17:38:17 pi4b systemd[1]: smbd.service: Main process exited, code=dumped, status=6/ABRT
>>> Jan 29 17:38:17 pi4b systemd[1]: smbd.service: Failed with result 'core-dump'.
>>>
>>>
>> Must be something on your Rpi, on my Rpi4:
>>
>> pi at raspberrypi:~ $ ps ax | grep -E 'nmbd|smbd|winbindd'
>> 27609 ?        Ss     0:01 /usr/sbin/nmbd --foreground --no-process-group
>> 27612 ?        Ss     0:00 /usr/sbin/smbd --foreground --no-process-group
>> 27614 ?        S      0:00 /usr/sbin/smbd --foreground --no-process-group
>> 27615 ?        S      0:00 /usr/sbin/smbd --foreground --no-process-group
>> 27683 ?        Ss     0:00 /usr/sbin/winbindd --foreground --no-process-group
>> 27686 ?        S      0:01 winbindd: domain child [SAMDOM]
>>
>> Upgraded this morning ;-)
>>
>> Rowland
> Thanks for the prompt reply Rowland.
> Fair enough, but what?  (I upgraded a similar Rpi3 without issues, but this one is struggling.)   Is it easiest to delete the computer account in the domain, remove and purge samba then re-install and rejoin?   Or better to find out what is causing the problem?
>
> Roy
>
>
>
>
Is this using Raspbian ?

Problem with going down the leave then rejoin path is, what if it 
doesn't work, you are no further forward.

I would try and fix it first, can you download and run Louis's script:

https://github.com/thctlo/samba4/blob/master/samba-collect-debug-info.sh

Sanitise the output and post the output into a reply to this.

Rowland