Hi guys
We're having a problem when trying to access a subdir of an automount
directory that isn't mounted. Instead of looking up the mount entry for
the directory, a subdir is looked up instead. If the exact dir of the
entry is accessed, then it mounts fine.
i.e.
ls /net/alpha/job/xmen3 -> no such file or directory
ls /net/alpha -> lists OK
We use a yp map for auto.net, it's not -host based mounting, heres the
line from auto.master
/net yp:auto.net --ghost
Here's the entry from auto.net for /net/alpha which seems to be causing
the problem (but I understand we experienced this for other mount
points, including nfs servers. alpha is a lustre cluster)
alpha -fstype=lustre mds1a://mdt1a/alpha
We're running autofs 4.1.4-8 from RHEL4 RHN repo rebuilt for Fedora Core
3. Also kernel-2.6.12-1.1381 from FC3 updates.
We've got debugging turned on the automounter so here you can see the
logs when running the commands listed above
Jan 24 15:38:49 rj081 automount[3186]: handle_packet: type = 0
Jan 24 15:38:49 rj081 automount[3186]: handle_packet_missing: token 269,
name alpha/job
Jan 24 15:38:49 rj081 automount[3186]: attempting to mount entry
/net/alpha/job
Jan 24 15:38:49 rj081 automount[25673]: lookup(yp): looking up alpha/job
Jan 24 15:38:49 rj081 automount[25673]: ret = 8
Jan 24 15:38:49 rj081 automount[25673]: failed to mount /net/alpha/job
Jan 24 15:38:49 rj081 automount[25673]: umount_multi:
path=/net/alpha/job incl=1
Jan 24 15:38:49 rj081 automount[25673]: umount_multi: no mounts found
under /net/alpha/job
Jan 24 15:38:51 rj081 automount[3137]: sig 14 switching from 1 to 2
Jan 24 15:38:51 rj081 automount[3137]: get_pkt: state 1, next 2
Jan 24 15:38:51 rj081 automount[3137]: st_expire(): state = 1
Jan 24 15:38:51 rj081 automount[3137]: expire_proc: exp_proc=25674
Jan 24 15:38:51 rj081 automount[3292]: sig 14 switching from 1 to 2
Jan 24 15:38:51 rj081 automount[3292]: get_pkt: state 1, next 2
Jan 24 15:38:51 rj081 automount[3292]: st_expire(): state = 1
Jan 24 15:38:51 rj081 automount[3292]: expire_proc: exp_proc=25675
Jan 24 15:38:51 rj081 automount[3137]: handle_child: got pid 25674, sig
0 (0), stat 0
Jan 24 15:38:51 rj081 automount[3137]: sigchld: exp 25674 finished,
switching from 2 to 1
Jan 24 15:38:51 rj081 automount[3137]: get_pkt: state 2, next 1
Jan 24 15:38:51 rj081 automount[3137]: st_ready(): state = 2
Jan 24 15:38:51 rj081 automount[3292]: handle_child: got pid 25675, sig
0 (0), stat 0
Jan 24 15:38:51 rj081 automount[3292]: sigchld: exp 25675 finished,
switching from 2 to 1
Jan 24 15:38:51 rj081 automount[3292]: get_pkt: state 2, next 1
Jan 24 15:38:51 rj081 automount[3292]: st_ready(): state = 2
Jan 24 15:38:51 rj081 automount[3186]: handle_child: got pid 25673, sig
0 (0), stat 1
Jan 24 15:38:51 rj081 automount[3186]: sig_child: found pending iop pid
25673: signalled 0 (sig 0), exit status 1
Jan 24 15:38:51 rj081 automount[3186]: send_fail: token=269
Jan 24 15:38:51 rj081 automount[3186]: handle_packet: type = 0
Jan 24 15:38:51 rj081 automount[3186]: handle_packet_missing: token 270,
name alpha
Jan 24 15:38:51 rj081 automount[3186]: attempting to mount entry /net/alpha
Jan 24 15:38:51 rj081 automount[25677]: lookup(yp): looking up alpha
Jan 24 15:38:51 rj081 automount[25677]: ret = 1
Jan 24 15:38:51 rj081 automount[25677]: lookup(yp): alpha ->
-fstype=lustre mds1a://mdt1a/alpha
Jan 24 15:38:51 rj081 automount[25677]: parse(sun): expanded entry:
-fstype=lustre mds1a://mdt1a/alpha
Jan 24 15:38:51 rj081 automount[25677]: parse(sun):
dequote("fstype=lustre") -> fstype=lustre
Jan 24 15:38:51 rj081 automount[25677]: parse(sun): gathered options:
fstype=lustre
Jan 24 15:38:51 rj081 automount[25677]: parse(sun):
dequote("mds1a://mdt1a/alpha") -> mds1a://mdt1a/alpha
Jan 24 15:38:51 rj081 automount[25677]: parse(sun): core of entry:
options=fstype=lustre, loc=mds1a://mdt1a/alpha
Jan 24 15:38:51 rj081 automount[25677]: parse(sun): mounting root /net,
mountpoint alpha, what mds1a://mdt1a/alpha, fstype lustre, options
Jan 24 15:38:51 rj081 automount[25677]: do_mount mds1a://mdt1a/alpha
/net/alpha type lustre options using module generic
Jan 24 15:38:51 rj081 automount[25677]: mount(generic): calling
mkdir_path /net/alpha
Jan 24 15:38:51 rj081 automount[25677]: mount(generic): calling mount -t
lustre mds1a://mdt1a/alpha /net/alpha
Jan 24 15:38:52 rj081 automount[25677]: mount(generic): mounted
mds1a://mdt1a/alpha type lustre on /net/alpha
Jan 24 15:39:31 rj081 automount[3186]: handle_child: got pid 25677, sig
0 (0), stat 0
Jan 24 15:39:31 rj081 automount[3186]: sig_child: found pending iop pid
25677: signalled 0 (sig 0), exit status 0
--
Johan van den Dorpe
Systems Administrator, Framestore CFC
020 7106 2441
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