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smbd and rpc.mountd deadlock (dual share problem?)

This is a discussion on smbd and rpc.mountd deadlock (dual share problem?) within the Slackware Linux Support forums, part of the Unix Operating Systems category; --> For several days I have been trying to get samba up but as soon as I rename my config ...


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  #1 (permalink)  
Old 02-20-2008, 09:21 PM
Sambo
 
Posts: n/a
Default smbd and rpc.mountd deadlock (dual share problem?)

For several days I have been trying to get samba up but as soon as I rename my config file smb.conf and reboot it hangs when it gets to starting smbd.
I thought it is my ambitious domain server settings and server security, two network cards
so changed most of that to basics but still when I run NMBD and SMBD it 'hangs'
CPU usage is 60+% and 30+% for smbd and rcp.mountd so finally just now checked the shares.

Ok I removed the /home/public share from my exports file but the problem still persists.
Additionally this morning I noticed, for the first time, that not both network cards are working properly, I accessed web page through my eth0 last night but had to ifconfig eth0 down and up it to get it working again.

I posted this to linux.samba over 24 hours ago but it still not there should I have included [SAMBA] in the subject?

Any Ideas ?

The comp is Ppro200 with 2 DFE538(tx?) cards , slack 10.2 (after I gave up on setting up an ISA AT/LANTIC 83905 card.)
After I first checked that I can ping both computers on each side I didn't pay attention to it.
As it turns out the bios identifies both cards, indicates they are set for IRQ 11
and Slack uses 11 for both as well even though 9 and 10 are free. it seams to work most of the time going in one direction at a time ( since to this day I can't figure out how to make this
comp into router/bridge ) perhaps they need to be separate subnets?

Cheers.


**************************

# workgroup = NT-Domain-Name or Workgroup-Name, eg: LINUX2
workgroup = workgroup

# server string is the equivalent of the NT Description field
server string = Samba Server

# Security mode. Defines in which mode Samba will operate. Possible
# values are share, user, server, domain and ads. Most people will want
# user level security. See the HOWTO Collection for details.
security = share

# This option is important for security. It allows you to restrict
# connections to machines which are on your local network. The
# following example restricts access to two C class networks and
# the "loopback" interface. For more examples of the syntax see
# the smb.conf man page
; hosts allow = 192.168.1. 192.168.2. 127.
hosts allow = 192.168.0. 127.

# If you want to automatically load your printer list rather
# than setting them up individually then you'll need this
load printers = yes

# you may wish to override the location of the printcap file
; printcap name = /etc/printcap

# on SystemV system setting printcap name to lpstat should allow
# you to automatically obtain a printer list from the SystemV spool
# system
; printcap name = lpstat

# It should not be necessary to specify the print system type unless
# it is non-standard. Currently supported print systems include:
# bsd, cups, sysv, plp, lprng, aix, hpux, qnx
; printing = cups

# Uncomment this if you want a guest account, you must add this to /etc/passwd
# otherwise the user "nobody" is used
; guest account = pcguest

# this tells Samba to use a separate log file for each machine
# that connects
log file = /var/log/samba.%m

# Put a capping on the size of the log files (in Kb).
max log size = 50

# Use password server option only with security = server
# The argument list may include:
# password server = My_PDC_Name [My_BDC_Name] [My_Next_BDC_Name]
# or to auto-locate the domain controller/s
# password server = *
; password server = <NT-Server-Name>

# Use the realm option only with security = ads
# Specifies the Active Directory realm the host is part of
; realm = MY_REALM

# Backend to store user information in. New installations should
# use either tdbsam or ldapsam. smbpasswd is available for backwards
# compatibility. tdbsam requires no further configuration.
passdb backend = tdbsam

# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting.
# Note: Consider carefully the location in the configuration file of
# this line. The included file is read at that point.
; include = /usr/local/samba/lib/smb.conf.%m

# Most people will find that this option gives better performance.
# See the chapter 'Samba performance issues' in the Samba HOWTO Collection
# and the manual pages for details.
# You may want to add the following on a Linux system:
# SO_RCVBUF=8192 SO_SNDBUF=8192
socket options = TCP_NODELAY

# Configure Samba to use multiple interfaces
# If you have multiple network interfaces then you must list them
# here. See the man page for details.
; interfaces = 192.168.12.2/24 192.168.13.2/24

# Browser Control Options:
# set local master to no if you don't want Samba to become a master
# browser on your network. Otherwise the normal election rules apply
; local master = no

# OS Level determines the precedence of this server in master browser
# elections. The default value should be reasonable
os level = 33

# Domain Master specifies Samba to be the Domain Master Browser. This
# allows Samba to collate browse lists between subnets. Don't use this
# if you already have a Windows NT domain controller doing this job
domain master = no

# Preferred Master causes Samba to force a local browser election on startup
# and gives it a slightly higher chance of winning the election
preferred master = no

# Enable this if you want Samba to be a domain logon server for
# Windows95 workstations.
domain logons = no

# if you enable domain logons then you may want a per-machine or
# per user logon script
# run a specific logon batch file per workstation (machine)
; logon script = %m.bat
# run a specific logon batch file per username
; logon script = %U.bat

# Where to store roving profiles (only for Win95 and WinNT)
# %L substitutes for this servers netbios name, %U is username
# You must uncomment the [Profiles] share below
logon path = \\%L\Profiles\%U

# Windows Internet Name Serving Support Section:
# WINS Support - Tells the NMBD component of Samba to enable it's WINS Server
wins support = yes

# WINS Server - Tells the NMBD components of Samba to be a WINS Client
# Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
;wins server = 192.168.0.3

# WINS Proxy - Tells Samba to answer name resolution queries on
# behalf of a non WINS capable client, for this to work there must be
# at least one WINS Server on the network. The default is NO.
; wins proxy = yes

# DNS Proxy - tells Samba whether or not to try to resolve NetBIOS names
# via DNS nslookups. The default is NO.
dns proxy = no
restrict anonymous = no
max protocol = NT
ldap ssl = No
server signing = Auto

# These scripts are used on a domain controller or stand-alone
# machine to add or delete corresponding unix accounts
; add user script = /usr/sbin/useradd %u
; add group script = /usr/sbin/groupadd %g
; add machine script = /usr/sbin/adduser -n -g machines -c Machine -d /dev/null -s /bin/false %u
; delete user script = /usr/sbin/userdel %u
; delete user from group script = /usr/sbin/deluser %u %g
; delete group script = /usr/sbin/groupdel %g


#============================ Share Definitions ==============================
[homes]
comment = Home Directories
browseable = No
read only = No

# Un-comment the following and create the netlogon directory for Domain Logons
; [netlogon]
; comment = Network Logon Service
; path = /usr/local/samba/lib/netlogon
; guest ok = yes
; writable = no
; share modes = no


# Un-comment the following to provide a specific roving profile share
# the default is to use the user's home directory
;[Profiles]
; path = /usr/local/samba/profiles
; browseable = no
; guest ok = yes


# NOTE: If you have a BSD-style print system there is no need to
# specifically define each individual printer
[printers]
comment = All Printers
path = /var/spool/samba
browseable = no
# Set public = yes to allow user 'guest account' to print
guest ok = no
writable = no
printable = yes

# This one is useful for people to share files
;[tmp]
; comment = Temporary file space
; path = /tmp
; read only = no
; public = yes

# A publicly accessible directory, but read only, except for people in
# the "staff" group
;[public]
; comment = Public Stuff
; path = /home/samba
; public = yes
; writable = yes
; printable = no
; write list = @staff

# Other examples.
#
# A private printer, usable only by fred. Spool data will be placed in fred's
# home directory. Note that fred must have write access to the spool directory,
# wherever it is.
;[fredsprn]
; comment = Fred's Printer
; valid users = fred
; path = /homes/fred
; printer = freds_printer
; public = no
; writable = no
; printable = yes

# A private directory, usable only by fred. Note that fred requires write
# access to the directory.
;[fredsdir]
; comment = Fred's Service
; path = /usr/somewhere/private
; valid users = fred
; public = no
; writable = yes
; printable = no

# a service which has a different directory for each machine that connects
# this allows you to tailor configurations to incoming machines. You could
# also use the %U option to tailor it by user name.
# The %m gets replaced with the machine name that is connecting.
;[pchome]
; comment = PC Directories
; path = /usr/pc/%m
; public = no
; writable = yes

# A publicly accessible directory, read/write to all users. Note that all files
# created in the directory by users will be owned by the default user, so
# any user with access can delete any other user's files. Obviously this
# directory must be writable by the default user. Another user could of course
# be specified, in which case all files would be owned by that user instead.
;[public]
; path = /usr/somewhere/else/public
; public = yes
; only guest = yes
; writable = yes
; printable = no

# The following two entries demonstrate how to share a directory so that two
# users can place files there that will be owned by the specific users. In this
# setup, the directory should be writable by both users and should have the
# sticky bit set on it to prevent abuse. Obviously this could be extended to
# as many users as required.
;[myshare]
; comment = Mary's and Fred's stuff
; path = /usr/somewhere/shared
; valid users = mary fred
; public = no
; writable = yes
; printable = no
; create mask = 0765

#
#
#
#
#
[public]
path = /home/public
guest ok = yes
guest only = yes
read only = no
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  #2 (permalink)  
Old 02-20-2008, 09:23 PM
Dave Dickman
 
Posts: n/a
Default Re: smbd and rpc.mountd deadlock (dual share problem?)

Sambo wrote:

> For several days I have been trying to get samba up but as soon as I
> rename my config file smb.conf and reboot it hangs when it gets to
> starting smbd. I thought it is my ambitious domain server settings and
> server security, two network cards so changed most of that to basics but
> still when I run NMBD and SMBD it 'hangs' CPU usage is 60+% and 30+% for
> smbd and rcp.mountd so finally just now checked the shares.
>
> Ok I removed the /home/public share from my exports file but the problem
> still persists. Additionally this morning I noticed, for the first time,
> that not both network cards are working properly, I accessed web page
> through my eth0 last night but had to ifconfig eth0 down and up it to get
> it working again.
>
> I posted this to linux.samba over 24 hours ago but it still not there
> should I have included [SAMBA] in the subject?
>
> Any Ideas ?
>
> The comp is Ppro200 with 2 DFE538(tx?) cards , slack 10.2 (after I gave up
> on setting up an ISA AT/LANTIC 83905 card.) After I first checked that I
> can ping both computers on each side I didn't pay attention to it. As it
> turns out the bios identifies both cards, indicates they are set for IRQ
> 11 and Slack uses 11 for both as well even though 9 and 10 are free. it
> seams to work most of the time going in one direction at a time ( since to
> this day I can't figure out how to make this comp into router/bridge )
> perhaps they need to be separate subnets?


Slack 11 includes "brctl" -- which control kernel level bridging. You can
force the cards to separate irqs in many cases, but it is not normally
required for proper operation (the driver MIGHT actually work more
efficiently if it polls both cards before exiting.)

I've deleted many of the comments from your smb.conf (lines starting with
semicolon or hash mark are comments here) --- read the ones that are left.
Note that you do have two networks cards, but the interfaces line is not
active. Using "interfaces = eth0 eth1" may help.

I would not have kept some of the other defaults, either. If you want this
to work as a poor man's bridge, enable the DNS proxy, wins proxy, and
you'll be able to get SMB system shares on the other interface, although
not browse to them (my HomeLAN is working this way ATM.)

> **************************
> workgroup = workgroup
> server string = Samba Server
> security = share
> hosts allow = 192.168.0. 127.
> log file = /var/log/samba.%m
> max log size = 50
> passdb backend = tdbsam
> socket options = TCP_NODELAY
>
> # Configure Samba to use multiple interfaces
> # If you have multiple network interfaces then you must list them
> # here. See the man page for details.
> ; interfaces = 192.168.12.2/24 192.168.13.2/24
>
> os level = 33
> domain master = no
> preferred master = no
> domain logons = no
> logon path = \\%L\Profiles\%U
> wins support = yes
> ;wins server = 192.168.0.3
>
> # WINS Proxy - Tells Samba to answer name resolution queries on
> # behalf of a non WINS capable client, for this to work there must be
> # at least one WINS Server on the network. The default is NO.
> ; wins proxy = yes
> dns proxy = no
> restrict anonymous = no
> max protocol = NT
> ldap ssl = No
> server signing = Auto
>
>
> #============================ Share Definitions
> #==============================
> [homes]
> comment = Home Directories
> browseable = No
> read only = No
> # NOTE: If you have a BSD-style print system there is no need to
> # specifically define each individual printer
> [printers]
> comment = All Printers
> path = /var/spool/samba
> browseable = no
> # Set public = yes to allow user 'guest account' to print
> guest ok = no
> writable = no
> printable = yes
>
> [public]
> path = /home/public
> guest ok = yes
> guest only = yes
> read only = no


You might want to look up "testparm" -- it may have it's own complaints ...

--
Linux User #152843
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  #3 (permalink)  
Old 02-20-2008, 09:23 PM
Sambo
 
Posts: n/a
Default Re: smbd and rpc.mountd deadlock (dual share problem?)

Dave Dickman wrote:

> Sambo wrote:
>
>
>>For several days I have been trying to get samba up but as soon as I
>>rename my config file smb.conf and reboot it hangs when it gets to
>>starting smbd. I thought it is my ambitious domain server settings and
>>server security, two network cards so changed most of that to basics but
>>still when I run NMBD and SMBD it 'hangs' CPU usage is 60+% and 30+% for
>>smbd and rcp.mountd so finally just now checked the shares.
>>
>>Ok I removed the /home/public share from my exports file but the problem
>>still persists. Additionally this morning I noticed, for the first time,
>>that not both network cards are working properly, I accessed web page
>>through my eth0 last night but had to ifconfig eth0 down and up it to get
>>it working again.
>>
>>I posted this to linux.samba over 24 hours ago but it still not there
>>should I have included [SAMBA] in the subject?
>>
>>Any Ideas ?
>>
>>The comp is Ppro200 with 2 DFE538(tx?) cards , slack 10.2 (after I gave up
>>on setting up an ISA AT/LANTIC 83905 card.) After I first checked that I
>>can ping both computers on each side I didn't pay attention to it. As it
>>turns out the bios identifies both cards, indicates they are set for IRQ
>>11 and Slack uses 11 for both as well even though 9 and 10 are free. it
>>seams to work most of the time going in one direction at a time ( since to
>>this day I can't figure out how to make this comp into router/bridge )
>>perhaps they need to be separate subnets?

>
>
> Slack 11 includes "brctl" -- which control kernel level bridging. You can
> force the cards to separate irqs in many cases, but it is not normally


Now that I finally manages to download it, I may try it , but frankly I am loosing faith.
Always something nasty crops up on one of the computers, but after about 20 reinstalls in 4
or 5 years I am getting faster.
Acctualy I was able to set them appart with BIOS, assigning 10 and 11 to those slots, although slackware ended up with 9 and 11??

> required for proper operation (the driver MIGHT actually work more
> efficiently if it polls both cards before exiting.)
>

If it is writen that way hmmm.

> I've deleted many of the comments from your smb.conf (lines starting with
> semicolon or hash mark are comments here) --- read the ones that are left.
> Note that you do have two networks cards, but the interfaces line is not
> active. Using "interfaces = eth0 eth1" may help.
>


I only have windows machine on one side but I guess if it was supposed to work
as name server .... Eventually would be nice it it was my internet gateway and
all related server, heh.

> I would not have kept some of the other defaults, either. If you want this
> to work as a poor man's bridge, enable the DNS proxy, wins proxy, and
> you'll be able to get SMB system shares on the other interface, although
> not browse to them (my HomeLAN is working this way ATM.)
>
>
>>**************************
>>workgroup = workgroup
>>server string = Samba Server
>>security = share
>>hosts allow = 192.168.0. 127.
>>log file = /var/log/samba.%m
>>max log size = 50
>>passdb backend = tdbsam
>>socket options = TCP_NODELAY
>>
>># Configure Samba to use multiple interfaces
>># If you have multiple network interfaces then you must list them
>># here. See the man page for details.
>>; interfaces = 192.168.12.2/24 192.168.13.2/24
>>
>>os level = 33
>>domain master = no
>>preferred master = no
>>domain logons = no
>>logon path = \\%L\Profiles\%U
>>wins support = yes
>>;wins server = 192.168.0.3
>>
>># WINS Proxy - Tells Samba to answer name resolution queries on
>># behalf of a non WINS capable client, for this to work there must be
>># at least one WINS Server on the network. The default is NO.
>>; wins proxy = yes
>>dns proxy = no
>>restrict anonymous = no
>>max protocol = NT
>>ldap ssl = No
>>server signing = Auto
>>
>>
>>#============================ Share Definitions
>>#==============================
>>[homes]
>>comment = Home Directories
>>browseable = No
>>read only = No
>># NOTE: If you have a BSD-style print system there is no need to
>># specifically define each individual printer
>>[printers]
>>comment = All Printers
>>path = /var/spool/samba
>>browseable = no
>># Set public = yes to allow user 'guest account' to print
>>guest ok = no
>>writable = no
>>printable = yes
>>
>>[public]
>>path = /home/public
>>guest ok = yes
>>guest only = yes
>>read only = no

>
>
> You might want to look up "testparm" -- it may have it's own complaints ...
>

I did, it no longer complains after I changed from server security to share,
however still can't start SMBD

cheers



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