Next time you have to restart smb/server run the attached DTrace
script right after the service is restarted and let it run until
you see the problem below then stop it and post the output:
netuse.d -p `pgrep smbd` | tee netuse.out
Thanks,
Afshin
Jean-Noel Filippi wrote:
I enabled debugging on the syslog daemon to get more information.
Here are the errors thrown while SMB stops working:
Oct 3 22:31:00 vdcnas001 idmap[4619]: [ID 537588 daemon.debug] Found
_ldap._tcp.gc._msdcs.photochannel.local 600 IN SRV [0][100]
ad001.photochannel.local:3268
Oct 3 22:31:00 vdcnas001 idmap[4619]: [ID 966149 daemon.debug] unable
to discover Site Name
Oct 3 22:31:00 vdcnas001 idmap[4619]: [ID 873961 daemon.info] change
domain_controller=ad001.photochannel.local port=389
Oct 3 22:31:00 vdcnas001 idmap[4619]: [ID 873961 daemon.info] change
domain_controller=vdcdc002.photochannel.local port=389
Oct 3 22:31:49 vdcnas001 smbd[10584]: [ID 775558 daemon.debug]
smb_door_srv_func: execute server routine(opcode=0)
Oct 3 22:31:49 vdcnas001 smbd[10584]: [ID 277356 daemon.debug]
*smbrdr_netuse_alloc: table full*
Oct 3 22:31:49 vdcnas001 smbd[10584]: [ID 577104 daemon.debug]
smbrdr_tree_connect: init failed
Oct 3 22:31:49 vdcnas001 smbd[10584]: [ID 321293 daemon.debug] smbrdr:
(open) vdcdc002 PHOTOCHANNEL VDCNAS001$ \NETLOGON INTERNAL_ERROR
Oct 3 22:31:50 vdcnas001 smbd[10584]: [ID 775558 daemon.debug]
smb_door_srv_func: execute server routine(opcode=0)
Oct 3 22:31:50 vdcnas001 smbd[10584]: [ID 277356 daemon.debug]
smbrdr_netuse_alloc: table full
Oct 3 22:31:50 vdcnas001 smbd[10584]: [ID 577104 daemon.debug]
smbrdr_tree_connect: init failed
------------------------------------------------------------------------
*From:* Jean-Noel Filippi
*Sent:* Fri 03/10/2008 6:22 PM
*To:* Nicolas Williams
*Cc:* [EMAIL PROTECTED]; [email protected]
*Subject:* Re: [cifs-discuss] Idmap stability problem
The ouput was created when the issue was happening. I attempted to connect to
the share 2 or 3 times from a Windows host. Each time I got permission denied.
To answer your other questions, restart SMB alone fixed the problem. I don't need to restart idmap. You are right and I should be troubleshotting SMB instead of idmap. Is there any dtrace script to run to catch SMB traffic while the issue is happening?
Thanks,
JN
________________________________
From: Nicolas Williams [mailto:[EMAIL PROTECTED]
Sent: Fri 03/10/2008 1:29 PM
To: Jean-Noel Filippi
Cc: [EMAIL PROTECTED]; [email protected]
Subject: Re: [cifs-discuss] Idmap stability problem
On Fri, Oct 03, 2008 at 12:38:50PM -0700, Jean-Noel Filippi wrote:
We are still struggling here with the SMB and IDMAP daemons.
For some reasons, all the authentications requests start failing
randomly. The only way to get it working again is to restart SMB.
I have attached the output of the dtrace script for idmap (captured
while authencation was failing) and the cifs-gendiag output.
I would appreciate any help.
Hmmm, I'm not finding any telltale clue in there. I'll have to look at
it more carefully.
Meanwhile, the idmap.d output is particularly small. When run on a busy
service, or even on an otherwise idel service just to capture a single
logon attempt this script tends to produce massive output. Can you
confirm that the output you sent captures the failing share logon?
Nico
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#!/usr/sbin/dtrace -s
pid$target::mlsvc_open_pipe:entry
{
printf("%s\\%s, %s:%s\n", copyinstr(arg1), copyinstr(arg2),
copyinstr(arg0), copyinstr(arg3));
}
pid$target::mlsvc_open_pipe:return
{
printf("fid=%d\n", arg1);
}
pid$target::mlsvc_close_pipe:entry
{
printf("fid=%d\n", arg0);
}
pid$target::smbrdr_tdcon:return,
pid$target::smbrdr_tree_disconnect:return,
pid$target::smbrdr_tree_connect:return,
pid$target::mlsvc_close_pipe:return
{
printf("rc=%d\n", arg1);
}
pid$target::smbrdr_tree_connect:entry
{
printf("//%s/%s, %s\n", copyinstr(arg0), copyinstr(arg2),
copyinstr(arg1));
}
pid$target::smbrdr_tree_disconnect:entry
{
printf("tid=%d\n", arg0);
}
pid$target::smbrdr_tdcon:entry
{
printf("tree=%p\n", arg0);
}
pid$target::smbrdr_netuse_clear:entry
{
printf("tree=%p\n", arg0);
}
pid$target::smbrdr_netuse_alloc:entry
{
printf("session=%p, %s\n", arg0, copyinstr(arg1));
}
pid$target::smbrdr_netuse_alloc:return
{
printf("tree=%p\n", arg1);
}
pid$target::smbrdr_netuse_free:entry
{
printf("tree=%p\n", arg0);
}
pid$target::smbrdr_netuse_clear:return,
pid$target::smbrdr_netuse_free:return
{
}
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