Package: nfs-common
Version: 1:1.2.6-3
Severity: normal
Mounting a kerberos-protected nfs4 export is unsuccsessfull on powerpcspe.
nfs-common initializes without error, and rpc.gssd appears to be running. Upon
a mount attempt, the following error message was displayed:
mount: fstab path: "/etc/fstab"
mount: mtab path: "/etc/mtab"
mount: lock path: "/etc/mtab~"
mount: temp path: "/etc/mtab.tmp"
mount: UID: 0
mount: eUID: 0
mount: spec: "nfsserver:/home/yesterday"
mount: node: "/home"
mount: types: "nfs4"
mount: opts: "noatime,sec=krb5"
mount: external mount: argv[0] = "/sbin/mount.nfs4"
mount: external mount: argv[1] = "nfsserver:/home/yesterday"
mount: external mount: argv[2] = "/home"
mount: external mount: argv[3] = "-v"
mount: external mount: argv[4] = "-o"
mount: external mount: argv[5] = "rw,noatime,sec=krb5"
mount.nfs4: timeout set for Mon Apr 15 17:35:12 2013
mount.nfs4: trying text-based options
'sec=krb5,addr=192.168.1.2,clientaddr=192.168.1.3'
mount.nfs4: mount(2): Broken pipe
mount.nfs4: Broken pipe
After this message, rpc.gssd is no longer running. Further mount
attempts timeout with the following:
mount: fstab path: "/etc/fstab"
mount: mtab path: "/etc/mtab"
mount: lock path: "/etc/mtab~"
mount: temp path: "/etc/mtab.tmp"
mount: UID: 0
mount: eUID: 0
mount: spec: "titansteel:/home/yesterday"
mount: node: "/home"
mount: types: "nfs4"
mount: opts: "noatime,sec=krb5"
mount: external mount: argv[0] = "/sbin/mount.nfs4"
mount: external mount: argv[1] = "titansteel:/home/yesterday"
mount: external mount: argv[2] = "/home"
mount: external mount: argv[3] = "-v"
mount: external mount: argv[4] = "-o"
mount: external mount: argv[5] = "rw,noatime,sec=krb5"
mount.nfs4: timeout set for Mon Apr 15 17:37:21 2013
mount.nfs4: trying text-based options
'sec=krb5,addr=192.168.1.2,clientaddr=192.168.1.3'
mount.nfs4: mount(2): Permission denied
mount.nfs4: access denied by server while mounting
nfsserver:/home/yesterday
A gdb trace of rpc.gssd reveals the following:
Program received signal SIGSEGV, Segmentation fault.
0x0ffd9154 in __gss_get_mechanism_cred ()
from /lib/powerpc-linux-gnuspe/libtirpc.so.1
(gdb) where
#0 0x0ffd9154 in __gss_get_mechanism_cred ()
from /lib/powerpc-linux-gnuspe/libtirpc.so.1
#1 0x0ffd845c in gss_add_cred () from
/lib/powerpc-linux-gnuspe/libtirpc.so.1
#2 0x0fb4dc38 in gss_acquire_cred (minor_status=0xbfc5f2fc,
desired_name=0x0,
time_req=0, desired_mechs=<optimized out>, cred_usage=1,
output_cred_handle=0xbfc5f1f4, actual_mechs=0x0,
time_rec=0xbfc5f1ec)
at ../../../../src/lib/gssapi/mechglue/g_acquire_cred.c:152
#3 0x0ffd8588 in gss_add_cred () from
/lib/powerpc-linux-gnuspe/libtirpc.so.1
#4 0x0ffd8af8 in gss_acquire_cred ()
from /lib/powerpc-linux-gnuspe/libtirpc.so.1
#5 0x10007b90 in ?? ()
#6 0x10004e04 in ?? ()
#7 0x100054d0 in ?? ()
#8 0x10005d14 in ?? ()
#9 0x10003b6c in ?? ()
#10 0x10002590 in ?? ()
#11 0x0fcaadcc in generic_start_main (main=<optimized out>,
argc=<optimized out>, ubp_av=<optimized out>, auxvec=<optimized
out>,
init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized
out>,
stack_end=<optimized out>) at ../csu/libc-start.c:228
#12 0x0fcaaf84 in __libc_start_main (
argc=<error reading variable: value has been optimized out>,
ubp_av=<error reading variable: value has been optimized out>,
ubp_ev=<optimized out>,
auxvec=<error reading variable: value has been optimized out>,
rtld_fini=<error reading variable: value has been optimized out>,
stinfo=<optimized out>,
stack_on_entry=<error reading variable: value has been optimized
out>)
at ../sysdeps/unix/sysv/linux/powerpc/libc-start.c:105
#13 0x00000000 in ?? ()
(gdb)
I have not verified this as a problem with the same package versions on
any other architecture, but I suspect this is an architecture specific
problem.
-- Package-specific info:
-- rpcinfo --
program vers proto port service
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 4000 status
100024 1 tcp 4000 status
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 45924 nlockmgr
100021 3 udp 45924 nlockmgr
100021 4 udp 45924 nlockmgr
100021 1 tcp 46132 nlockmgr
100021 3 tcp 46132 nlockmgr
100021 4 tcp 46132 nlockmgr
-- /etc/default/nfs-common --
NEED_STATD=
STATDOPTS="--port 4000 --outgoing-port 4001"
NEED_IDMAPD=yes
NEED_GSSD=yes
RPCGSSDOPTS="-vvvrrr"
-- /etc/idmapd.conf --
[General]
Verbosity = 0
Pipefs-Directory = /var/lib/nfs/rpc_pipefs
Domain = exmeritus.com
Local-Realm = EXMERITUS.COM
[Mapping]
Nobody-User = nobody
Nobody-Group = nogroup
-- /etc/fstab --
nfsserver:/home /home nfs4
noatime,sec=krb5 0 2
-- /proc/mounts --
rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0
nfsd /proc/fs/nfsd nfsd rw,relatime 0 0
-- System Information:
Debian Release: 7.0
APT prefers unreleased
APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: powerpcspe (ppc)
Kernel: Linux 3.2.0bareboard (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Versions of packages nfs-common depends on:
ii adduser 3.113+nmu3
ii initscripts 2.88dsf-41
ii libc6 2.13-38
ii libcap2 1:2.22-1.2
ii libcomerr2 1.42.5-1.1
ii libdevmapper1.02.1 2:1.02.77-1
ii libevent-2.0-5 2.0.19-stable-3
ii libgssglue1 0.4-2
ii libk5crypto3 1.10.1+dfsg-5
ii libkeyutils1 1.5.5-7
ii libkrb5-3 1.10.1+dfsg-5
ii libmount1 2.20.1-5.3
ii libnfsidmap2 0.25-4
ii libtirpc1 0.2.2-5
ii libwrap0 7.6.q-24
ii lsb-base 4.1+Debian9
ii rpcbind 0.2.0-8
ii ucf 3.0025+nmu3
Versions of packages nfs-common recommends:
ii python 2.7.3-4
Versions of packages nfs-common suggests:
pn open-iscsi <none>
pn watchdog <none>
Versions of packages nfs-kernel-server depends on:
ii libblkid1 2.20.1-5.3
ii libc6 2.13-38
ii libtirpc1 0.2.2-5
ii libwrap0 7.6.q-24
ii lsb-base 4.1+Debian9
ii ucf 3.0025+nmu3
-- no debconf information
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