CIFS automounts to local NAS devices have stopped working recently
Fedora 32
kernel 5.7.8-200.fc32.x86_64
mount.cifs version: 6.9
auto.misc: it-share
-fstype=cifs,multiuser,cruid=${UID},rw,vers=default,sec=krb5
://filer5/IT_Share
dmesg:
[ 3428.883661] fs/cifs/cifsfs.c: Devname:
//filer5.arrlhq.org/IT_Share flags: 0
[ 3428.883702] fs/cifs/connect.c: Username: root
[ 3428.883706] fs/cifs/connect.c: file mode: 0755 dir mode: 0755
[ 3428.883709] fs/cifs/connect.c: CIFS VFS: in mount_get_conns as
Xid: 12 with uid: 0
[ 3428.883710] fs/cifs/connect.c: UNC: \\filer5.arrlhq.org\IT_Share
[ 3428.883721] fs/cifs/connect.c: Socket created
[ 3428.883723] fs/cifs/connect.c: sndbuf 16384 rcvbuf 131072
rcvtimeo 0x1b58
[ 3428.884126] fs/cifs/fscache.c: cifs_fscache_get_client_cookie:
(0x000000006d2b3226/0x0000000090edec3a)
[ 3428.884130] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as
Xid: 13 with uid: 0
[ 3428.884131] fs/cifs/connect.c: Existing smb sess not found
[ 3428.884135] fs/cifs/smb2pdu.c: Negotiate protocol
[ 3428.884141] fs/cifs/connect.c: Demultiplex PID: 5778
[ 3428.884156] fs/cifs/transport.c: Sending smb: smb_len=252
[ 3429.010818] fs/cifs/connect.c: RFC1002 header 0x11c
[ 3429.010830] fs/cifs/smb2misc.c: SMB2 data length 96 offset 128
[ 3429.010832] fs/cifs/smb2misc.c: SMB2 len 224
[ 3429.010835] fs/cifs/smb2misc.c: length of negcontexts 60 pad 0
[ 3429.010871] fs/cifs/transport.c: cifs_sync_mid_result: cmd=0
mid=0 state=4
[ 3429.010885] fs/cifs/misc.c: Null buffer passed to
cifs_small_buf_release
[ 3429.010891] fs/cifs/smb2pdu.c: mode 0x1
[ 3429.010893] fs/cifs/smb2pdu.c: negotiated smb3.1.1 dialect
[ 3429.010903] fs/cifs/asn1.c: OID len = 7 oid = 0x1 0x2 0x348 0xbb92
[ 3429.010907] fs/cifs/asn1.c: OID len = 7 oid = 0x1 0x2 0x348 0x1bb92
[ 3429.010910] fs/cifs/asn1.c: OID len = 10 oid = 0x1 0x3 0x6 0x1
[ 3429.010912] fs/cifs/smb2pdu.c: decoding 2 negotiate contexts
[ 3429.010914] fs/cifs/smb2pdu.c: decode SMB3.11 encryption neg
context of len 4
[ 3429.010916] fs/cifs/smb2pdu.c: SMB311 cipher type:1
[ 3429.010921] fs/cifs/connect.c: Security Mode: 0x1 Capabilities:
0x300046 TimeAdjust: 0
[ 3429.010923] fs/cifs/smb2pdu.c: Session Setup
[ 3429.010926] fs/cifs/smb2pdu.c: sess setup type 5
[ 3429.010949] fs/cifs/cifs_spnego.c: key description =
ver=0x2;host=filer5.arrlhq.org;ip4=10.1.123.38;sec=krb5;uid=0x0;creduid=0x3e8;user=root;pid=0x1690
[ 3429.025053] CIFS VFS: \\filer5.arrlhq.org Send error in SessSetup
= -126
[ 3429.025056] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses
(xid = 13) rc = -126
[ 3429.025059] fs/cifs/connect.c: build_unc_path_to_root:
full_path=\\filer5.arrlhq.org\IT_Share
[ 3429.025059] fs/cifs/connect.c: build_unc_path_to_root:
full_path=\\filer5.arrlhq.org\IT_Share
[ 3429.025060] fs/cifs/connect.c: build_unc_path_to_root:
full_path=\\filer5.arrlhq.org\IT_Share
[ 3429.025062] fs/cifs/dfs_cache.c: __dfs_cache_find: search path:
\filer5.arrlhq.org\IT_Share
[ 3429.025063] fs/cifs/dfs_cache.c: get_dfs_referral: get an DFS
referral for \filer5.arrlhq.org\IT_Share
[ 3429.025065] fs/cifs/dfs_cache.c: dfs_cache_noreq_find: path:
\filer5.arrlhq.org\IT_Share
[ 3429.025071] fs/cifs/fscache.c:
cifs_fscache_release_client_cookie:
(0x000000006d2b3226/0x0000000090edec3a)
[ 3429.025076] fs/cifs/connect.c: CIFS VFS: leaving mount_put_conns
(xid = 12) rc = 0
[ 3429.025077] CIFS VFS: cifs_mount failed w/return code = -2
journalctl:
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: key
description:
cifs.spnego;0;0;39010000;ver=0x2;host=filer5.arrlhq.org;ip4=10.1.123.38;sec=krb5;uid=0x0;creduid=0x3e8;user=root;pid=0x1690
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: ver=2
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]:
host=filer5.arrlhq.org
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: ip=10.1.123.38
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: sec=1
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: uid=0
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: creduid=1000
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: user=root
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: pid=5776
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]:
get_cachename_from_process_env: pathname=/proc/5776/environ
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]:
get_existing_cc: default ccache is KEYRING:persistent:1000:1000
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]:
handle_krb5_mech: getting service ticket for filer5.arrlhq.org
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]:
cifs_krb5_get_req: unable to get credentials for filer5.arrlhq.org
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]:
handle_krb5_mech: failed to obtain service ticket (-1765328370)
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: Unable to
obtain service ticket
Jul 17 09:43:13 mkZ230.ARRLHQ.ORG cifs.upcall[5779]: Exit status
-1765328370
$ klist
Ticket cache: KEYRING:persistent:1000:1000
Default principal: mkeane@xxxxxxxxxx
Valid starting Expires Service principal
07/17/2020 09:43:06 07/17/2020 19:43:06 krbtgt/ARRLHQ.ORG@xxxxxxxxxx
renew until 07/24/2020 09:42:57
Filer5 is a QNAP TS-870U-RP Version 4.3.6.1070 (2019/09/10) NAS device
but having this issue with other NAS device on LAN
--
Michael Keane, K1MK
IT Manager
ARRL, The National Association for Amateur Radio™
225 Main Street, Newington, CT 06111-1494 USA
Telephone: (860) 594-0285
email: mkeane@xxxxxxxx
