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Antoine Huchet

2017-Jun-25 16:11 UTC

[Samba] Samba freezes

Hello,

I have Samba 4.5.8-Debian running on Debian Stretch.
I use Samba to load games over my local network from my Debian machine
to my Playstation 2 (using OpenPS2Loader:
https://github.com/Jay-Jay-OPL/OPL-Daily-Builds).
>From time to time, the game freezes, then after 5 minutes it comes back(sometimes it doesn't, depends on the game).

Here is what I believe to be a relevant chunk of the
logs:> [2017/06/25 16:33:39.646102,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBreadX (pid 23003) conn 0x557ede2f1420
> [2017/06/25 16:33:39.646149,  3] ../source3/lib/util.c:1183(fcntl_getlock)
>   fcntl_getlock: fd 35 is returned info 2 pid 0
> [2017/06/25 16:33:39.646193,  3]
> ../source3/smbd/reply.c:4178(send_file_readX)
>   send_file_readX fnum 62440 max=2048 nread=2048
> [2017/06/25 16:33:39.649153,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 34186 of length 63 (0 toread)
> [2017/06/25 16:33:39.649209,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBreadX (pid 23003) conn 0x557ede2f1420
> [2017/06/25 16:33:39.649253,  3] ../source3/lib/util.c:1183(fcntl_getlock)
>   fcntl_getlock: fd 35 is returned info 2 pid 0
> [2017/06/25 16:33:39.649295,  3]
> ../source3/smbd/reply.c:4178(send_file_readX)
>   send_file_readX fnum 62440 max=2048 nread=2048
> [2017/06/25 16:33:39.657037,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 34187 of length 63 (0 toread)
> [2017/06/25 16:33:39.657093,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBreadX (pid 23003) conn 0x557ede2f1420
> [2017/06/25 16:33:39.657136,  3] ../source3/lib/util.c:1183(fcntl_getlock)
>   fcntl_getlock: fd 35 is returned info 2 pid 0
> [2017/06/25 16:33:39.657178,  3]
> ../source3/smbd/reply.c:4178(send_file_readX)
>   send_file_readX fnum 62440 max=2048 nread=2048
> [2017/06/25 16:34:22.747143,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1605 of length 42 (0 toread)
> [2017/06/25 16:34:22.747320,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:34:22.747448,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:35:24.191410,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1606 of length 42 (0 toread)
> [2017/06/25 16:35:24.191581,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:35:24.191760,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:36:25.627108,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1607 of length 42 (0 toread)
> [2017/06/25 16:36:25.627279,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:36:25.627422,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:37:27.067033,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1608 of length 42 (0 toread)
> [2017/06/25 16:37:27.067210,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:37:27.067363,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:38:28.506980,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1609 of length 42 (0 toread)
> [2017/06/25 16:38:28.507158,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:38:28.507291,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:39:29.947124,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1610 of length 42 (0 toread)
> [2017/06/25 16:39:29.947289,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:39:29.947406,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:40:31.390985,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1611 of length 42 (0 toread)
> [2017/06/25 16:40:31.391161,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:40:31.391307,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:41:05.373860,  3]
> ../source3/param/loadparm.c:3739(lp_load_ex)
>   lp_load_ex: refreshing parameters
> [2017/06/25 16:41:05.374001,  3]
> ../source3/param/loadparm.c:542(init_globals)
>   Initialising global parameters
> [2017/06/25 16:41:05.374140,  3]
> ../source3/param/loadparm.c:2668(lp_do_section)
>   Processing section "[global]"
> [2017/06/25 16:41:05.374241,  2]
> ../source3/param/loadparm.c:2685(lp_do_section)
>   Processing section "[PS2SMB]"
> [2017/06/25 16:41:05.374350,  2]
> ../source3/param/loadparm.c:2685(lp_do_section)
>   Processing section "[Partage]"
> [2017/06/25 16:41:05.374451,  3]
> ../source3/param/loadparm.c:1585(lp_add_ipc)
>   adding IPC service
> [2017/06/25 16:41:05.374721,  2]
> ../source3/lib/interface.c:345(add_interface)
>   added interface eth0 ip=192.168.2.4 bcast=192.168.2.255
> netmask=255.255.255.0
> [2017/06/25 16:41:32.826872,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1612 of length 42 (0 toread)
> [2017/06/25 16:41:32.827041,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:41:32.827176,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:42:34.268428,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1613 of length 42 (0 toread)
> [2017/06/25 16:42:34.268613,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:42:34.268818,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:43:35.706909,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 1614 of length 42 (0 toread)
> [2017/06/25 16:43:35.707081,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBecho (pid 17169) conn 0x0
> [2017/06/25 16:43:35.707221,  3] ../source3/smbd/reply.c:5789(reply_echo)
>   echo 1 times
> [2017/06/25 16:44:08.606358,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 34188 of length 63 (0 toread)
> [2017/06/25 16:44:08.606517,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBreadX (pid 23003) conn 0x557ede2f1420
> [2017/06/25 16:44:08.606667,  3] ../source3/lib/util.c:1183(fcntl_getlock)
>   fcntl_getlock: fd 35 is returned info 2 pid 0
> [2017/06/25 16:44:08.606737,  3]
> ../source3/smbd/reply.c:4178(send_file_readX)
>   send_file_readX fnum 62440 max=4096 nread=4096
> [2017/06/25 16:44:08.609392,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 34189 of length 63 (0 toread)
> [2017/06/25 16:44:08.609459,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBreadX (pid 23003) conn 0x557ede2f1420
> [2017/06/25 16:44:08.609511,  3] ../source3/lib/util.c:1183(fcntl_getlock)
>   fcntl_getlock: fd 35 is returned info 2 pid 0
> [2017/06/25 16:44:08.609560,  3]
> ../source3/smbd/reply.c:4178(send_file_readX)
>   send_file_readX fnum 62440 max=4096 nread=4096
> [2017/06/25 16:44:08.616655,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 34190 of length 63 (0 toread)
> [2017/06/25 16:44:08.616740,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBreadX (pid 23003) conn 0x557ede2f1420
> [2017/06/25 16:44:08.616788,  3] ../source3/lib/util.c:1183(fcntl_getlock)
>   fcntl_getlock: fd 35 is returned info 2 pid 0
> [2017/06/25 16:44:08.616834,  3]
> ../source3/smbd/reply.c:4178(send_file_readX)
>   send_file_readX fnum 62440 max=4096 nread=4096
> [2017/06/25 16:44:08.619438,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 34191 of length 63 (0 toread)
> [2017/06/25 16:44:08.619492,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBreadX (pid 23003) conn 0x557ede2f1420
> [2017/06/25 16:44:08.619537,  3] ../source3/lib/util.c:1183(fcntl_getlock)
>   fcntl_getlock: fd 35 is returned info 2 pid 0
> [2017/06/25 16:44:08.619579,  3]
> ../source3/smbd/reply.c:4178(send_file_readX)
>   send_file_readX fnum 62440 max=2048 nread=2048
> [2017/06/25 16:44:08.628418,  3]
> ../source3/smbd/process.c:1957(process_smb)
>   Transaction 34192 of length 63 (0 toread)
> [2017/06/25 16:44:08.628475,  3]
> ../source3/smbd/process.c:1538(switch_message)
>   switch message SMBreadX (pid 23003) conn 0x557ede2f1420
And here is the syslog at the same time:
> Jun 25 16:39:01 serveur CRON[23116]: (root) CMD (  [ -x
> /usr/lib/php5/sessionclean ] && /usr/lib/php5/sessionclean)
> Jun 25 16:41:05 serveur dhclient[717]: DHCPREQUEST of 192.168.2.4 on
> eth0 to 192.168.2.1 port 67
> Jun 25 16:41:05 serveur dhclient[717]: DHCPACK of 192.168.2.4 from
> 192.168.2.1
> Jun 25 16:41:05 serveur systemd[1]: Reloading Samba SMB Daemon.
> Jun 25 16:41:05 serveur systemd[1]: Reloaded Samba SMB Daemon.
> Jun 25 16:41:05 serveur dhclient[717]: bound to 192.168.2.4 -- renewal
> in 2912 seconds.
>From what I see, there is the usual stuff on top of the logs, then itstart echoing someting, then reloads and then it works again...

Any idea what might be causing that?

Thanks!

Best,
Antoine

Rowland Penny

2017-Jun-25 16:54 UTC

head link

[Samba] Samba freezes

On Sun, 25 Jun 2017 18:11:05 +0200
Antoine Huchet via samba <samba at lists.samba.org> wrote:
> Hello,
> 
> I have Samba 4.5.8-Debian running on Debian Stretch.
> I use Samba to load games over my local network from my Debian machine
> to my Playstation 2 (using OpenPS2Loader:
> https://github.com/Jay-Jay-OPL/OPL-Daily-Builds).
> 
> From time to time, the game freezes, then after 5 minutes it comes
> back (sometimes it doesn't, depends on the game).
> 
> 
> And here is the syslog at the same time:
> 
> > Jun 25 16:39:01 serveur CRON[23116]: (root) CMD (  [ -x
> > /usr/lib/php5/sessionclean ] && /usr/lib/php5/sessionclean)
> > Jun 25 16:41:05 serveur dhclient[717]: DHCPREQUEST of 192.168.2.4 on
> > eth0 to 192.168.2.1 port 67
> > Jun 25 16:41:05 serveur dhclient[717]: DHCPACK of 192.168.2.4 from
> > 192.168.2.1
> > Jun 25 16:41:05 serveur systemd[1]: Reloading Samba SMB Daemon.
> > Jun 25 16:41:05 serveur systemd[1]: Reloaded Samba SMB Daemon.
> > Jun 25 16:41:05 serveur dhclient[717]: bound to 192.168.2.4 --
> > renewal in 2912 seconds.
> 
> From what I see, there is the usual stuff on top of the logs, then it
> start echoing someting, then reloads and then it works again...
> 
> Any idea what might be causing that?
> 
It looks like your Samba machine is using DHCP and when it changes
systemd reloads Samba, this will break any connections.

Try giving your machine a fixed IP instead.

Rowland

Andrew Bartlett

2017-Jun-25 21:34 UTC

head link

[Samba] Samba freezes

On Sun, 2017-06-25 at 17:54 +0100, Rowland Penny via samba
wrote:> On Sun, 25 Jun 2017 18:11:05 +0200
> Antoine Huchet via samba <samba at lists.samba.org> wrote:
> 
> > Hello,
> > 
> > I have Samba 4.5.8-Debian running on Debian Stretch.
> > I use Samba to load games over my local network from my Debian machine
> > to my Playstation 2 (using OpenPS2Loader:
> > https://github.com/Jay-Jay-OPL/OPL-Daily-Builds).
> > 
> > From time to time, the game freezes, then after 5 minutes it comes
> > back (sometimes it doesn't, depends on the game).
> > 
> > 
> > And here is the syslog at the same time:
> > 
> > > Jun 25 16:39:01 serveur CRON[23116]: (root) CMD (  [ -x
> > > /usr/lib/php5/sessionclean ] &&
/usr/lib/php5/sessionclean)
> > > Jun 25 16:41:05 serveur dhclient[717]: DHCPREQUEST of 192.168.2.4
on
> > > eth0 to 192.168.2.1 port 67
> > > Jun 25 16:41:05 serveur dhclient[717]: DHCPACK of 192.168.2.4
from
> > > 192.168.2.1
> > > Jun 25 16:41:05 serveur systemd[1]: Reloading Samba SMB Daemon.
> > > Jun 25 16:41:05 serveur systemd[1]: Reloaded Samba SMB Daemon.
> > > Jun 25 16:41:05 serveur dhclient[717]: bound to 192.168.2.4 --
> > > renewal in 2912 seconds.
> > 
> > From what I see, there is the usual stuff on top of the logs, then it
> > start echoing someting, then reloads and then it works again...
> > 
> > Any idea what might be causing that?
> > 
> 
> It looks like your Samba machine is using DHCP and when it changes
> systemd reloads Samba, this will break any connections.
> 
> Try giving your machine a fixed IP instead.
> 
G'Day Rowland,

I think you are on to the right thing about the echo and DHCP, except
they are in other order.  

Antoine,

What we do know is that the linux cifs client, and other clients no
doubt, send an echo if they feel the server is un-responsive.  

Is the DHCP renewal at the normal point (compare with previous
renewal), or could this be both related to an underlying issue: lack of
two-way link at the network layer?  Could Samba be listening only, but
the client not getting the responses due to dodgy networking, and then
it finally breaking down causing NetworkManager to re-try the whole
stack?

Can you rule out a dodgy network switch?

Thanks,

Andrew Bartlett

-- 
Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba

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