Hello,
using the autofs package from suse10.0 (autofs-4.1.4-6.i586.rpm; autofs4
kernel module, Kernel2.6.13-15) NFS mounts of user directories fail when using
indirect mounts.
The problem can be reproduced in a certrain setup describes below. Because of
this, the description
is a bit lenghty.
The maps for automount are taken from NIS. To mount a users directory via NFS
eg. /home/krienke on a
client entries from the NIS-maps auto.home and auto.vol are used. auto.master
is
configured like this:
/home auto.home -intr
/import auto.vol -intr
In auto.home there is this entry for each user like "krienke":
krienke localhost:/import/user2/krienke
In auto.vol you find another entry to handle the "user2" key starting at
/import from above
(there are more than one nfsservers exporting user1, user2, ... each with about
2000 users):
user2 nfssrv2:/export/user2
nfssrv2 ist one of our NFS servers for home directories. So basically we nfs
mount a volume containing
all the users on this server on /import/user2 on the client and then we mount
/home/krienke on
/import/user2/krienke on the client (the advantage of this indirect 2 layer
mount is that we
avoid problems with too many mounts for users on one client since bind mounts
are used for the
users home). This mount was (up to 9.3) automatically mounted as a bind mount
by automount.
Up to suse9.3 (using autofs4-4.1.3) this worked without problems and if I
replace the suse10
autofs rpm by the suse9.3 autofs4 rpm it again does work. I can also manually
issue the mount
command logged by automunt
below (mount -t nfs -s -o intr nfssrv2:/export/user2 /import/user2) and it
works without any problems.
When trying to mount a user like "krienke" saying eg ls ~krienke the following
log appears
in /var/log/messages (autmount is running with -d -v):
Oct 18 12:41:59 rzinstal1 automount[16770]: handle_packet: type = 0
Oct 18 12:41:59 rzinstal1 automount[16770]: handle_packet_missing: token 49,
name krienke
Oct 18 12:41:59 rzinstal1 automount[16770]: attempting to mount entry
/home/krienke
Oct 18 12:41:59 rzinstal1 automount[16791]: lookup(yp): looking up krienke
Oct 18 12:41:59 rzinstal1 automount[16791]: ret = 1
Oct 18 12:41:59 rzinstal1 automount[16791]: lookup(yp): krienke ->
localhost:/import/user2/krienke
Oct 18 12:41:59 rzinstal1 automount[16791]: parse(sun): expanded entry:
localhost:/import/user2/krienke
Oct 18 12:41:59 rzinstal1 automount[16791]: parse(sun): gathered options: intr
Oct 18 12:41:59 rzinstal1 automount[16791]: parse(sun):
dequote("localhost:/import/user2/krienke") -> localhost:/import/user2/krienke
Oct 18 12:41:59 rzinstal1 automount[16791]: parse(sun): core of entry:
options=intr, loc=localhost:/import/user2/krienke
Oct 18 12:41:59 rzinstal1 automount[16791]: parse(sun): mounting root /home,
mountpoint krienke, what localhost:/import/user2/krienke, fstype nfs,
Oct 18 12:41:59 rzinstal1 automount[16791]: mount(nfs): root=/home name=krienke
what=localhost:/import/user2/krienke, fstype=nfs, options=intr
Oct 18 12:41:59 rzinstal1 automount[16791]: mount(nfs): nfs options="intr",
nosymlink=0, ro=0
Oct 18 12:41:59 rzinstal1 automount[16791]: mount(nfs): winner = localhost
local = 1
Oct 18 12:41:59 rzinstal1 automount[16791]: mount(nfs): from
localhost:/import/user2/krienke elected /import/user2/krienke
Oct 18 12:41:59 rzinstal1 automount[16791]: mount(nfs): krienke is local, doing
bind
Oct 18 12:41:59 rzinstal1 automount[16791]: mount(bind): calling mkdir_path
/home/krienke
Oct 18 12:41:59 rzinstal1 automount[16791]: mount(bind): calling mount --bind
-s -o defaults /import/user2/krienke /home/krienke
Oct 18 12:41:59 rzinstal1 automount[16772]: handle_packet: type = 0
Oct 18 12:41:59 rzinstal1 automount[16772]: handle_packet_missing: token 50,
name user2
Oct 18 12:41:59 rzinstal1 automount[16772]: attempting to mount entry
/import/user2
Oct 18 12:41:59 rzinstal1 automount[16793]: lookup(yp): looking up user2
Oct 18 12:41:59 rzinstal1 automount[16793]: ret = 1
Oct 18 12:41:59 rzinstal1 automount[16793]: lookup(yp): user2 ->
nfssrv2:/export/user2
Oct 18 12:41:59 rzinstal1 automount[16793]: parse(sun): expanded entry:
nfssrv2:/export/user2
Oct 18 12:41:59 rzinstal1 automount[16793]: parse(sun): gathered options: intr
Oct 18 12:41:59 rzinstal1 automount[16793]: parse(sun):
dequote("nfssrv2:/export/user2") -> nfssrv2:/export/user2
Oct 18 12:41:59 rzinstal1 automount[16793]: parse(sun): core of entry:
options=intr, loc=nfssrv2:/export/user2
Oct 18 12:41:59 rzinstal1 automount[16793]: parse(sun): mounting root /import,
mountpoint user2, what nfssrv2:/export/user2, fstype nfs, options intr
Oct 18 12:41:59 rzinstal1 automount[16793]: mount(nfs): root=/import name=user2
what=nfssrv2:/export/user2, fstype=nfs, options=intr
Oct 18 12:41:59 rzinstal1 automount[16793]: mount(nfs): nfs options="intr",
nosymlink=0, ro=0
Oct 18 12:41:59 rzinstal1 automount[16793]: mount(nfs): winner = nfssrv2 local
= 0
Oct 18 12:41:59 rzinstal1 automount[16793]: mount(nfs): from
nfssrv2:/export/user2 elected nfssrv2:/export/user2
Oct 18 12:41:59 rzinstal1 automount[16793]: mount(nfs): calling mkdir_path
/import/user2
Oct 18 12:41:59 rzinstal1 automount[16793]: mount(nfs): calling mount -t nfs -s
-o intr nfssrv2:/export/user2 /import/user2
Oct 18 12:42:30 rzinstal1 automount[16793]: aquire_lock: can't lock lock file
timed out: /var/lock/autofs
Oct 18 12:42:30 rzinstal1 automount[16793]: mount(nfs): nfs: mount failure
nfssrv2:/export/user2 on /import/user2
Oct 18 12:42:30 rzinstal1 automount[16793]: failed to mount /import/user2
Oct 18 12:42:30 rzinstal1 automount[16793]: umount_multi: path=/import/user2
incl=1
Oct 18 12:42:30 rzinstal1 automount[16793]: umount_multi: no mounts found under
/import/user2
Oct 18 12:42:30 rzinstal1 automount[16772]: handle_child: got pid 16793, sig 0
(0), stat 1
Oct 18 12:42:30 rzinstal1 automount[16772]: sig_child: found pending iop pid
16793: signalled 0 (sig 0), exit status 1
Oct 18 12:42:30 rzinstal1 automount[16772]: send_fail: token=50
Then after 2 more retries to mount /import/user2 the whole mount fails.
Oct 18 12:44:04 rzinstal1 automount[16798]: aquire_lock: can't lock lock file
timed out: /var/lock/autofs
Oct 18 12:44:04 rzinstal1 automount[16798]: mount(nfs): nfs: mount failure
nfssrv2:/export/user2 on /import/user2
Oct 18 12:44:04 rzinstal1 automount[16798]: failed to mount /import/user2
Oct 18 12:44:04 rzinstal1 automount[16798]: umount_multi: path=/import/user2
incl=1
Oct 18 12:44:04 rzinstal1 automount[16798]: umount_multi: no mounts found under
/import/user2
Oct 18 12:44:04 rzinstal1 automount[16772]: handle_child: got pid 16798, sig 0
(0), stat 1
Oct 18 12:44:04 rzinstal1 automount[16772]: sig_child: found pending iop pid
16798: signalled 0 (sig 0), exit status 1
Oct 18 12:44:04 rzinstal1 automount[16772]: send_fail: token=54
Oct 18 12:44:04 rzinstal1 automount[16795]: >> mount: special device
/import/user2/krienke does not exist
Oct 18 12:44:04 rzinstal1 automount[16795]: failed to mount /home/krienke
Oct 18 12:44:04 rzinstal1 automount[16795]: umount_multi: path=/home/krienke
incl=1
Oct 18 12:44:04 rzinstal1 automount[16795]: umount_multi: no mounts found under
/home/krienke
Oct 18 12:44:04 rzinstal1 automount[16770]: handle_child: got pid 16795, sig 0
(0), stat 1
Oct 18 12:44:04 rzinstal1 automount[16770]: sig_child: found pending iop pid
16795: signalled 0 (sig 0), exit status 1
Oct 18 12:44:04 rzinstal1 automount[16770]: send_fail: token=52
Any idea why or how to fix this?
Thanks
Rainer
--
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Rainer Krienke, Universitaet Koblenz, Rechenzentrum, Raum A022
Universitaetsstrasse 1, 56070 Koblenz, Tel: +49 261287 -1312, Fax: -1001312
Mail: [EMAIL PROTECTED], Web: http://www.uni-koblenz.de/~krienke
Get my public PGP key: http://www.uni-koblenz.de/~krienke/mypgp.html
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