[Samba] Network Meltdown after Samba 4.9.0 Upgrade

Reuben Farrelly reuben-samba at reub.net
Sat Sep 15 13:58:55 UTC 2018



On 15/09/2018 11:49 pm, Andrew Bartlett via samba wrote:
> On Sat, 2018-09-15 at 23:44 +1000, Reuben Farrelly via samba wrote:
>>
>> On 15/09/2018 10:44 pm, Andrew Bartlett wrote:
>>>
>>> On Sat, 2018-09-15 at 12:52 +1000, Reuben Farrelly via samba wrote:
>>>
>>>>
>>>> The system is a Gentoo Linux x86_64 kept very up to date.  The
>>>> server
>>>> is
>>>> a VM which has one interface that has 4 IPv4 and IPv6 addresses
>>>> on
>>>> it,
>>>> as well as a second vNIC (currently used for backups only with no
>>>> hosts
>>>> on it right now).
>>>>
>>>> Can anyone please assist in getting to the bottom of what appears
>>>> to
>>>> be
>>>> a nasty bug?  I'm keen to work on getting to the root cause of
>>>> this.
>>> Can you try reverting 3a383038ee7f74e5a9d2326a761b27950a14eb83?
>>>
>>> nmbd does not change much, and this is one of the few changes
>>> between
>>> 4.8 and 4.9.
>>>
>>> I've attached such a revert (it probably won't go to list
>>> recipients)
>>> for your testing.
>>>
>>> Thanks,
>>>
>>> Andrew Bartlett
>>>
>> Cool.  That seems to have fixed things both in the scenario of
>> "domain
>> master = yes" set (my initial config) as well as the case of that
>> parameter now not explicitly defined.
>>
>> In both cases Samba now starts up normally and uneventfully.
> 
> Can you please file a bug?
> 
> I think we will have to patch this pretty urgently.

No problem.

Filed as https://bugzilla.samba.org/show_bug.cgi?id=13620

Thanks,
Reuben



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