Hi,
It seems there is a problem when using autofs5 package in LXC container.
Please look also to :
http://www.mail-archive.com/lxc-users@lists.sourceforge.net/msg02691.html
I am running Debian Squeeze (V6.02) container with lxc 0.7.2-1
I have a problem with autofs daemon on lxc container
------------------------test -------------------------------------
My kernel is the 2.6.39 backport from Debian testing on Debian squeeze
runing
on one P4 X86/IA32 server.
In one container (srv-nis-1), i have installed NIS client, nfs-common
and autofs package
in order to mount a remote file system on one external server on the LAN.
According autofs4 kernel module for user to kernel communication char
device,....
local@vador:~$ sudo modinfo autofs4
filename:
/lib/modules/2.6.39-bpo.2-686-pae/kernel/fs/autofs4/autofs4.ko
license: GPL
alias: devname:autofs
alias: char-major-10-235
depends:
intree: Y
vermagic: 2.6.39-bpo.2-686-pae SMP mod_unload modversions 686
I have setup the correct permission in the config file
grep 235 /etc/lxc/lxc_vm_0*
/etc/lxc/lxc_vm_01-srv-nis-1.conf:lxc.cgroup.devices.allow = c 10:235 rwm
and ...on the host on which lxc cointainer runs..
When booting the VM on the real host , is seems there is no problems.....
sudo lxc-start -n srv-nis-1 -f /etc/lxc/lxc_vm_01-srv-nis-1.conf
INIT: version 2.88 booting
Using makefile-style concurrent boot in runlevel S.
Activating swap...done.
Cleaning up ifupdown....
Loading kernel modules...done.
Setting up networking....
Activating lvm and md swap...done.
Checking file systems...fsck from util-linux-ng 2.17.2
done.
Mounting local filesystems...done.
Activating swapfile swap...done.
Cleaning up temporary files....
Setting kernel variables ...done.
Configuring network interfaces...Internet Systems Consortium DHCP Client
4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth0/02:00:00:01:01:00
Sending on LPF/eth0/02:00:00:01:01:00
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
DHCPOFFER from 192.168.9.8
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 192.168.9.8
bound to 192.168.9.239 -- renewal in 31 seconds.
Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth1/02:00:00:01:01:01
Sending on LPF/eth1/02:00:00:01:01:01
Sending on Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
DHCPOFFER from 192.168.6.2
DHCPREQUEST on eth1 to 255.255.255.255 port 67
DHCPACK from 192.168.6.2
bound to 192.168.6.226 -- renewal in 27 seconds.
Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth2/02:00:00:01:01:02
Sending on LPF/eth2/02:00:00:01:01:02
Sending on Socket/fallback
DHCPDISCOVER on eth2 to 255.255.255.255 port 67 interval 7
DHCPOFFER from 192.168.8.11
DHCPREQUEST on eth2 to 255.255.255.255 port 67
DHCPACK from 192.168.8.11
bound to 192.168.8.249 -- renewal in 29 seconds.
done.
Starting portmap daemon....
Starting NFS common utilities: statd.
Cleaning up temporary files....
INIT: Entering runlevel: 3
Using makefile-style concurrent boot in runlevel 3.
Starting portmap daemon...Already running..
Starting NFS common utilities: statd.
Starting system logging: syslog-ng.
Starting system message bus: dbus.
Starting OpenBSD Secure Shell server: sshd.
Starting NIS services: ypserv yppasswdd ypxfrd ypbind.
Starting automount: done.
Starting periodic command scheduler: cron.
Debian GNU/Linux 6.0 srv-nis-1 console
srv-nis-1 login:
After booting, .....
root@srv-nis-1:~# ps auxww
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 2076 680 ? Ss 06:30 0:00 init [3]
root 198 0.0 0.0 2508 800 ? Ss 06:30 0:00
dhclient -v -pf /var/run/dhclient.eth0.pid -lf
/var/lib/dhcp/dhclient.eth0.leases eth
root 217 0.0 0.0 2508 800 ? Ss 06:30 0:00
dhclient -v -pf /var/run/dhclient.eth1.pid -lf
/var/lib/dhcp/dhclient.eth1.leases eth
root 241 0.0 0.0 2508 812 ? Ss 06:30 0:00
dhclient -v -pf /var/run/dhclient.eth2.pid -lf
/var/lib/dhcp/dhclient.eth2.leases eth
daemon 251 0.0 0.0 1852 536 ? Ss 06:30 0:00
/sbin/portmap
statd 263 0.0 0.0 2020 856 ? Ss 06:30 0:00
/sbin/rpc.statd
root 329 0.0 0.0 5416 508 ? S 06:30 0:00
supervising syslog-ng
root 332 0.0 0.1 5700 2208 ? Ss 06:30 0:00
/usr/sbin/syslog-ng -p /var/run/syslog-ng.pid
root 360 0.0 0.0 2148 792 ? S 06:30 0:00
/usr/sbin/ypserv --port 32770
root 362 0.0 0.0 2044 452 ? S 06:30 0:00
/usr/sbin/rpc.yppasswdd -D /var/yp/sources -e chsh -e chfn --port 32772
root 373 0.0 0.0 1920 504 ? S 06:30 0:00
/usr/sbin/rpc.ypxfrd -p 32773
103 384 0.0 0.0 2592 384 ? Ss 06:30 0:00
/usr/bin/dbus-daemon --system
root 388 0.0 0.0 20212 608 ? Sl 06:30 0:00
/usr/sbin/ypbind -p 32771 -broken-server -f /etc/yp.conf -ping-interval
10 -no-dbus
root 391 0.0 0.0 5464 916 ? Ss 06:30 0:00
/usr/sbin/sshd
root 419 0.0 0.0 21780 1260 ? Ssl 06:30 0:00
/usr/sbin/automount
root 448 0.0 0.0 2172 652 ? Ss 06:30 0:00
/usr/sbin/cron
root 465 0.0 0.0 2604 1388 console Ss 06:30 0:00
/bin/login --
root 538 0.0 0.1 2884 1576 console S 06:31 0:00 -bash
root 567 0.0 0.0 1748 624 ? Ss 06:31 0:00
/sbin/getty 38400 tty1 linux
root 568 0.0 0.0 1748 628 ? Ss 06:31 0:00
/sbin/getty 38400 tty2 linux
root 569 0.0 0.0 1748 624 ? Ss 06:31 0:00
/sbin/getty 38400 tty3 linux
root 570 0.0 0.0 1748 624 ? Ss 06:31 0:00
/sbin/getty 38400 tty4 linux
root 581 0.0 0.0 2232 820 console R+ 06:31 0:00 ps auxww
and after booting the VM, the /dev/autofs is correctly setup for autofs4
kernel module
root@srv-nis-1:~# ls -altrn /dev/autofs
crw------- 1 0 0 10, 235 Oct 4 06:53 /dev/autofs
All nfs daemons are ok (?), it is possible to get all NIS data base, and
i can mount
manually external mount in r/w as shown...
With NIS protocol, i can extract my auto.master and auto.home map
root@srv-nis-1:~# ypcat auto.master
yp:auto.private --timeout=20
yp:auto.home --timeout=20
root@srv-nis-1:~# ypcat auto.home
-fstype=nfs,rw,tcp,exec srv-nfs-2-services.dns2:/exports/data/lv_home/&
The server srv-nfs-2-services is available...
root@srv-nis-1:~# rpcinfo -p srv-nfs-2-services.dns2
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 32766 status
100024 1 tcp 32766 status
100007 2 udp 32771 ypbind
100007 1 udp 32771 ypbind
100007 2 tcp 32771 ypbind
100007 1 tcp 32771 ypbind
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
100227 2 tcp 2049
100227 3 tcp 2049
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 4 udp 2049 nfs
100227 2 udp 2049
100227 3 udp 2049
100021 1 udp 47047 nlockmgr
100021 3 udp 47047 nlockmgr
100021 4 udp 47047 nlockmgr
100021 1 tcp 46114 nlockmgr
100021 3 tcp 46114 nlockmgr
100021 4 tcp 46114 nlockmgr
100005 1 udp 32767 mountd
100005 1 tcp 32767 mountd
100005 2 udp 32767 mountd
100005 2 tcp 32767 mountd
100005 3 udp 32767 mountd
100005 3 tcp 32767 mountd
and....
root@srv-nis-1:~# mkdir /tmp/test-nfs
srv-nis-1:~# mount srv-nfs-2-services.dns2:/exports/data/lv_home/
/tmp/test-nfs
root@srv-nis-1:~# mount
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
rootfs on / type rootfs (rw)
/dev/mapper/vg_lxc_01-lv_tmp on /tmp type ext3
(rw,relatime,errors=continue,barrier=0,data=ordered)
/dev/mapper/vg_lxc_01-lv_usr on /usr type ext3
(rw,relatime,errors=continue,barrier=0,data=ordered)
/dev/mapper/vg_lxc_01-lv_var on /var type ext3
(rw,relatime,errors=continue,barrier=0,data=ordered)
srv-nfs-2-services.dns2:/exports/data/lv_home/ on /tmp/test-nfs type nfs
(rw,vers=4,addr=192.168.6.233,clientaddr=192.168.6.226)
and the mount point is correctly mounted without any errors in the console.
all access in read/write mode are ok on the /tmp/test-nfs device
At this point, for me, the nfs protocol is OK on both side of the
connection
(server and VM lxc client).
As autofs seems started .....
root@srv-nis-1:~# fuser -muv /home
USER PID ACCESS COMMAND
/home: root kernel mount (root)/home
root 419 f.... (root)automount
i try now to mount the /home/lacroix mount point via autofs and via NIS
with the ls command in order to force autromount access.
root@srv-nis-1:~# ls /home/lacroix
and the command is definitively suspended...
the same with strace ls /home/lacroix
root@srv-nis-1:~# strace ls /home/lacroix..........
execve("/bin/ls", ["ls", "/home/lacroix"], [/* 12 vars */]) = 0
brk(0) = 0x8944000
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7734000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or
directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=8381, ...}) = 0
mmap2(NULL, 8381, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7731000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
open("/lib/libselinux.so.1", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\0J\0\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=104276, ...}) = 0
mmap2(NULL, 109564, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0xb7716000
mmap2(0xb772f000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18) = 0xb772f000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
open("/lib/librt.so.1", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300\30\0\0004\0\0\0"..., 512)
= 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=30684, ...}) = 0
mmap2(NULL, 33364, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0)
= 0xb770d000
mmap2(0xb7714000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6) = 0xb7714000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
open("/lib/libacl.so.1", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0P\27\0\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=26492, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb770c000
mmap2(NULL, 25220, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0)
= 0xb7705000
mmap2(0xb770b000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6) = 0xb770b000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
open("/lib/libc.so.6", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\320m\1\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1319176, ...}) = 0
mmap2(NULL, 1329480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0xb75c0000
mprotect(0xb76fe000, 4096, PROT_NONE) = 0
mmap2(0xb76ff000, 12288, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13e) = 0xb76ff000
mmap2(0xb7702000, 10568, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7702000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
open("/lib/libdl.so.2", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@\n\0\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=9736, ...}) = 0
mmap2(NULL, 12408, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0)
= 0xb75bc000
mmap2(0xb75be000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb75be000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
open("/lib/libpthread.so.0", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`I\0\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=117105, ...}) = 0
mmap2(NULL, 98784, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0)
= 0xb75a3000
mprotect(0xb75b7000, 4096, PROT_NONE) = 0
mmap2(0xb75b8000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14) = 0xb75b8000
mmap2(0xb75ba000, 4576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb75ba000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
open("/lib/libattr.so.1", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@\17\0\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=14888, ...}) = 0
mmap2(NULL, 17696, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0)
= 0xb759e000
mmap2(0xb75a2000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3) = 0xb75a2000
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb759d000
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb759c000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb759c720,
limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb75b8000, 4096, PROT_READ) = 0
mprotect(0xb75be000, 4096, PROT_READ) = 0
mprotect(0xb76ff000, 8192, PROT_READ) = 0
mprotect(0xb7714000, 4096, PROT_READ) = 0
mprotect(0xb772f000, 4096, PROT_READ) = 0
mprotect(0xb7752000, 4096, PROT_READ) = 0
munmap(0xb7731000, 8381) = 0
set_tid_address(0xb759c788) = 1631
set_robust_list(0xb759c790, 0xc) = 0
futex(0xbf976cc0, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0xbf976cc0, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1,
NULL, bf976cd0) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigaction(SIGRTMIN, {0xb75a73b0, [], SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0xb75a7840, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
uname({sys="Linux", node="srv-nis-1", ...}) = 0
statfs64("/selinux", 84, {f_type="EXT2_SUPER_MAGIC", f_bsize=1024,
f_blocks=99150, f_bfree=68458, f_bavail=63338, f_files=25688,
f_ffree=23209, f_fsid={634740073, -854635489}, f_namelen=255,
f_frsize=1024}) = 0
brk(0) = 0x8944000
brk(0x8965000) = 0x8965000
open("/proc/filesystems", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7733000
read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tb"..., 1024) = 323
read(3, "", 1024) = 0
close(3) = 0
munmap(0xb7733000, 4096) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo
...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=24, ws_col=80, ws_xpixel=0, ws_ypixel=0}) = 0
stat64("/home/lacroix",
I suspect a problem in autofs module kernel when started a thread or
equivalent ...
probably a mismatch in cgroup implementation (??)
Furthermore, when trying to stop the automounter, i have ...
root@srv-nis-1:~# /etc/init.d/autofs stop
Stopping automount: 2011 Oct 14 07:06:00 s_src@srv-nis-1
umount_autofs_indirect:279: ioctl failed: Permission denied
2011 Oct 14 07:06:00 s_src@srv-nis-1 umount_autofs_indirect:279: ioctl
failed: Permission denied
2011 Oct 14 07:06:03 s_src@srv-nis-1 umount_autofs_indirect:279: ioctl
failed: Permission denied
2011 Oct 14 07:06:03 s_src@srv-nis-1 umount_autofs_indirect:279: ioctl
failed: Permission denied
I have change nfs version in order to force release 3 in NIS auto map,
but , the result is the same...
ypcat auto.home
root@srv-nis-1:~# ypcat auto.home
-fstype=nfs,rw,tcp,exec,nfsvers=3
srv-nfs-2-services.dns2:/exports/data/lv_home/&
any idea ?????