samba - May 2020 - Win7 clients problem after upgrading samba file server to 4.12 on Arch

My plans are as follows, step by step:
- clone the VM, clean and build the newest from gitlab, I can see it is
4.13.0pre1
- clone the VM. clean and build the latest supported 4.11.8
- create a new fresh VM with another distro, not Arch or Arch-based, build
the official 4.12.2 - to check/confirm that it is not distro-related
I will start playing in couple of hours, now I am at work...

Pawel.

wt., 5 maj 2020 o 03:33 Andrew Bartlett <abartlet at samba.org>
napisa?(a):
> On Tue, 2020-05-05 at 03:05 +0200, pavlos wrote:
> > @Andrew
> > Unfortunately I didn't make notes on exact time of errors when
doing
> > my tests...
> >
> > But, I've spend last couple of hours on building samba from
master:
> > Have made a clone of the virtual machine, with new name and network
> > interface mac address, and a new dynamic IP assigned by my router.
> > Uninstalled Arch packages: samba, smbclient and cifs-tools (depending
> > on smbclient)
> > As 'ala' downloaded
> > https://download.samba.org/pub/samba/samba-latest.tar.gz and unpacked
> > it, obtaining 'samba-4.12.2' directory
>
> Thanks.  This gives you Samba 4.12.2.  However our development branch,
> master is newer.  Could you try that?
>
> git clone https://gitlab.com/samba-team/samba/
>
> That can be downloaded from
> https://gitlab.com/samba-team/samba/-/archive/master/samba-master.tar.bz2
> but if you use git, then you can really help us with the bisect.
>
> But the rest of your steps look good.
>
> The next step, assuming master still fails, is to do a bisect.
> http://webchick.net/node/99
>
> You may need to run 'git clean -x -f -d' between steps.
>
> This will be slow, particularly as you can't automate it (need test
> with the client), but it is a very good way to find what the issue is.
>
> Thanks,
>
> Andrew Bartlett
>
> --
> Andrew Bartlett                       https://samba.org/~abartlet/
> Authentication Developer, Samba Team  https://samba.org
> Samba Developer, Catalyst IT
> https://catalyst.net.nz/services/samba
>
>
>
>

On Tue, 2020-05-05 at 11:08 +0200, pavlos wrote:
> My plans are as follows, step by step:
> - clone the VM, clean and build the newest from gitlab, I can see it
> is 4.13.0pre1
> - clone the VM. clean and build the latest supported 4.11.8
> - create a new fresh VM with another distro, not Arch or Arch-based,
> build the official 4.12.2 - to check/confirm that it is not distro-
> related
Thanks.  Even if it is distro-related, the bisect between the two
versions will be helpful.

Andrew Bartlett
> I will start playing in couple of hours, now I am at work...
> 
> Pawel.
> 
> wt., 5 maj 2020 o 03:33 Andrew Bartlett <abartlet at samba.org>
> napisa?(a):
> > On Tue, 2020-05-05 at 03:05 +0200, pavlos wrote:
> > > @Andrew
> > > Unfortunately I didn't make notes on exact time of errors
when
> > doing
> > > my tests...
> > > 
> > > But, I've spend last couple of hours on building samba from
> > master:
> > > Have made a clone of the virtual machine, with new name and
> > network
> > > interface mac address, and a new dynamic IP assigned by my
> > router.
> > > Uninstalled Arch packages: samba, smbclient and cifs-tools
> > (depending
> > > on smbclient)
> > > As 'ala' downloaded 
> > > https://download.samba.org/pub/samba/samba-latest.tar.gz and
> > unpacked
> > > it, obtaining 'samba-4.12.2' directory
> > 
> > Thanks.  This gives you Samba 4.12.2.  However our development
> > branch,
> > master is newer.  Could you try that?
> > 
> > git clone https://gitlab.com/samba-team/samba/
> > 
> > That can be downloaded from
> > 
https://gitlab.com/samba-team/samba/-/archive/master/samba-master.tar.bz2
> >  
> > but if you use git, then you can really help us with the bisect.
> > 
> > But the rest of your steps look good.
> > 
> > The next step, assuming master still fails, is to do a bisect. 
> > http://webchick.net/node/99
> > 
> > You may need to run 'git clean -x -f -d' between steps.
> > 
> > This will be slow, particularly as you can't automate it (need
test
> > with the client), but it is a very good way to find what the issue
> > is.
> > 
> > Thanks,
> > 
> > Andrew Bartlett
> > 
-- 
Andrew Bartlett                       https://samba.org/~abartlet/
Authentication Developer, Samba Team  https://samba.org
Samba Developer, Catalyst IT          
https://catalyst.net.nz/services/samba

Hi Andrew et al,

Now is the time to come back to my leisure...

Preparing the environment to the 'git bisect' surgery:

   - Got a clone of the last VM with 4.12.2 installed from
   https://download.samba.org/pub/samba/samba-latest.tar.gz
   - Stopped smb/nmb services and uninstalled 'sudo make uninstall'
within
   the directory 4.12.2.
   - Got the current master with 'git clone
   https://gitlab.com/samba-team/samba/' - it's version is 4.13.0pre1.
   - From inside the directory: './confugure', 'make' and
'sudo make
   install'. No issues.
   - Started smb/nmb services. No issues, as all configuration was adapted
   to different directories layout and missing packages installed during
   previous attempt.
   - # smbstatus --version
   Version 4.13.0pre1-GIT-f80c97cb8da

Stubborn problems with multiple Win7 clients do persist, unfortunately.

Now we have to move backwards till the last commit when it was working
properly.
We already know that 4.12.x is hopeless and we have to find last working
commit within 4.11.x branch.
For instance, the 4.11.3 - the last provided by Arch packagers - was
working.
But there were many other patches published by samba, the current one is
4.11.9.

Would it be possible to perform 'git bisect' between different branches?

Please give me some instructions as I am new in this school :)

Regards, Pawel.

wt., 5 maj 2020 o 11:50 Andrew Bartlett <abartlet at samba.org>
napisa?(a):
> On Tue, 2020-05-05 at 11:08 +0200, pavlos wrote:
> > My plans are as follows, step by step:
> > - clone the VM, clean and build the newest from gitlab, I can see it
> > is 4.13.0pre1
> > - clone the VM. clean and build the latest supported 4.11.8
> > - create a new fresh VM with another distro, not Arch or Arch-based,
> > build the official 4.12.2 - to check/confirm that it is not distro-
> > related
>
> Thanks.  Even if it is distro-related, the bisect between the two
> versions will be helpful.
>
> Andrew Bartlett
>
> > I will start playing in couple of hours, now I am at work...
> >
> > Pawel.
> >
> > wt., 5 maj 2020 o 03:33 Andrew Bartlett <abartlet at samba.org>
> > napisa?(a):
> > > On Tue, 2020-05-05 at 03:05 +0200, pavlos wrote:
> > > > @Andrew
> > > > Unfortunately I didn't make notes on exact time of
errors when
> > > doing
> > > > my tests...
> > > >
> > > > But, I've spend last couple of hours on building samba
from
> > > master:
> > > > Have made a clone of the virtual machine, with new name and
> > > network
> > > > interface mac address, and a new dynamic IP assigned by my
> > > router.
> > > > Uninstalled Arch packages: samba, smbclient and cifs-tools
> > > (depending
> > > > on smbclient)
> > > > As 'ala' downloaded
> > > > https://download.samba.org/pub/samba/samba-latest.tar.gz and
> > > unpacked
> > > > it, obtaining 'samba-4.12.2' directory
> > >
> > > Thanks.  This gives you Samba 4.12.2.  However our development
> > > branch,
> > > master is newer.  Could you try that?
> > >
> > > git clone https://gitlab.com/samba-team/samba/
> > >
> > > That can be downloaded from
> > >
> https://gitlab.com/samba-team/samba/-/archive/master/samba-master.tar.bz2
> > >
> > > but if you use git, then you can really help us with the bisect.
> > >
> > > But the rest of your steps look good.
> > >
> > > The next step, assuming master still fails, is to do a bisect.
> > > http://webchick.net/node/99
> > >
> > > You may need to run 'git clean -x -f -d' between steps.
> > >
> > > This will be slow, particularly as you can't automate it
(need test
> > > with the client), but it is a very good way to find what the
issue
> > > is.
> > >
> > > Thanks,
> > >
> > > Andrew Bartlett
> > >
> --
> Andrew Bartlett                       https://samba.org/~abartlet/
> Authentication Developer, Samba Team  https://samba.org
> Samba Developer, Catalyst IT
> https://catalyst.net.nz/services/samba
>
>
>
>