[Bug 1472584] Comment bridged from LTC Bugzilla

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------- Comment From fengmt at cn.ibm.com 2015-07-10 06:49 EDT-------
(In reply to comment #16)
> Well, I'm quickly exhausting my samba expertise here.  I don't know how to
> interpret all the debug messages but I'll say: your output doesn't really
> contain anything different from mine, and on my system everything seems to
> be working.
>
> Because there are no apparent errors from samba I'm starting to suspect some
> networking issue, for lack of better explanation.  I guess Ubuntu uses
> "apparmor" instead of selinux here, and I'm not as familiar with apparmor,
> but it looks like you can do the following to shut it down.  Suggest running
> the status first to see if anything odd:
>
> service apparmor status
> service apparmor teardown
>
> If that doesn't help I am out of ideas.
>
> Doing a broad search on NT_STATUS_IO_TIMEOUT doesn't point to anything
> specific.  apparently it's a common problem that pops over recent years and
> most cases are either attributed to network problems or indeterminate.
>
> Ubuntu: really need your help here.  Please get this assigned and give us an
> initial read as soon as you can.  thanks!

Hi,
pole2lp1 is used to debug bug 127303 now and I used lakelp1 to verify your suggestion. I got the same result.

root at lakelp1:~# /etc/init.d/smbd status
* smbd is running

root at lakelp1:~# smbclient -L lakelp1
Enter root's password:
protocol negotiation failed: NT_STATUS_IO_TIMEOUT

root at lakelp1:~# service apparmor status
apparmor module is loaded.
5 profiles are loaded.
5 profiles are in enforce mode.
/sbin/dhclient
/usr/lib/NetworkManager/nm-dhcp-client.action
/usr/lib/connman/scripts/dhclient-script
/usr/sbin/ntpd
/usr/sbin/tcpdump
0 profiles are in complain mode.
2 processes have profiles defined.
2 processes are in enforce mode.
/sbin/dhclient (2329)
/usr/sbin/ntpd (2974)
0 processes are in complain mode.
0 processes are unconfined but have a profile defined.

root at lakelp1:~# service apparmor teardown
* Unloading AppArmor profiles                                           [ OK ]

root at lakelp1:~# smbclient -L lakelp1
Enter root's password:
protocol negotiation failed: NT_STATUS_IO_TIMEOUT

root at lakelp1:~# smbpasswd -a root
New SMB password:
Retype new SMB password:
Added user root.

root at lakelp1:~# smbclient -L lakelp1
Enter root's password:
protocol negotiation failed: NT_STATUS_IO_TIMEOUT

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Title:
  ISST-LTE: Samba server doesn't work well on Ubuntu 14.04.3

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