thr3ads.net - samba - [Samba] smbd's using up 100% of all cpu's and load avg slowly going up [Dec 2014]

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Bruno Andrade

2014-Dec-29 10:48 UTC

[Samba] smbd's using up 100% of all cpu's and load avg slowly going up

Hi,

I'm having problems in a second domain controller machine. Every time a
restart samba, few time after a samba process starts using almost 100% cpu.

It's a Centos 6.5 x86_64 with the following:

sernet-samba-libsmbclient0-4.1.6-7.el6.x86_64
sernet-samba-ad-4.1.6-7.el6.x86_64
sernet-build-key-1.1-4.noarch
sernet-samba-libs-4.1.6-7.el6.x86_64
sernet-samba-client-4.1.6-7.el6.x86_64
sernet-samba-4.1.6-7.el6.x86_64
sernet-samba-common-4.1.6-7.el6.x86_64
sernet-samba-winbind-4.1.6-7.el6.x86_64

The testparm outputs the following:
Load smb config files from /etc/samba/smb.conf
Processing section "[netlogon]"
Processing section "[sysvol]"
Processing section "[Profiles]"
Processing section "[home]"
Loaded services file OK.
Server role: ROLE_ACTIVE_DIRECTORY_DC
Press enter to see a dump of your service definitions

[global]
    dos charset = ISO8859-1
    unix charset = cp850
    workgroup = EXAMPLE
    realm = EXAMPLE.COM
    netbios aliases = FS.ROAMING.EXAMPLE.COM
    interfaces = eth1
    bind interfaces only = Yes
    server role = active directory domain controller
    passdb backend = samba_dsdb
    allow dns updates = nonsecure and secure
    server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
winbind, ntp_signd, kcc, dnsupdate
    rpc_server:tcpip = no
    rpc_daemon:spoolssd = embedded
    rpc_server:spoolss = embedded
    rpc_server:winreg = embedded
    rpc_server:ntsvcs = embedded
    rpc_server:eventlog = embedded
    rpc_server:srvsvc = embedded
    rpc_server:svcctl = embedded
    rpc_server:default = external
    dsdb:schema update allowed = true
    idmap_ldb:use rfc2307 = yes
    idmap config * : backend = tdb
    map archive = No
    map readonly = no
    store dos attributes = Yes
    vfs objects = dfs_samba4, acl_xattr

[netlogon]
    path = /var/lib/samba/sysvol/example.com/scripts
    read only = No

[sysvol]
    path = /var/lib/samba/sysvol
    read only = No

[Profiles]
    path = /samba4/profiles/
    read only = No

[home]
    path = /samba4/home/
    read only = No

Any suggestions?

Regards,
Bruno Andrade.

Bruno Andrade

2014-Dec-29 11:56 UTC

head link

[Samba] smbd's using up 100% of all cpu's and load avg slowly going up

Hi,

Here is some output of "strace -ff -p" to the process using ~100% CPU

writev(75, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}],
1)
= 3496
epoll_wait(9, {{EPOLLIN, {u32=2539833808, u64=140271876753872}}}, 1,
30000) = 1
readv(91,
[{"\34\0\0\0\0\0\0\0rT\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}], 1) = 2092
gettimeofday({1419854003, 222035}, NULL) = 0
gettimeofday({1419854003, 222103}, NULL) = 0
gettimeofday({1419854003, 222169}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 222345}, NULL) = 0
gettimeofday({1419854003, 222482}, NULL) = 0
gettimeofday({1419854003, 222868}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=1488, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=1488, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=15644, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=15644, len=1}) = 0
writev(91, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}],
1)
= 3496
epoll_wait(9, {{EPOLLIN, {u32=2540085760, u64=140271877005824}}}, 1,
30000) = 1
readv(41,
[{"\34\0\0\0\0\0\0\0WS\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}], 1) = 2092
gettimeofday({1419854003, 230871}, NULL) = 0
gettimeofday({1419854003, 230939}, NULL) = 0
gettimeofday({1419854003, 231002}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 231249}, NULL) = 0
gettimeofday({1419854003, 231328}, NULL) = 0
gettimeofday({1419854003, 231474}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=8580, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=8580, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=26136, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=26136, len=1}) = 0
writev(41, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}],
1)
= 3496
epoll_wait(9, {{EPOLLIN, {u32=2524503808, u64=140271861423872}}}, 1,
30000) = 1
readv(103,
[{"\34\0\0\0\0\0\0\0\303Y\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}], 1) = 2092
gettimeofday({1419854003, 244114}, NULL) = 0
gettimeofday({1419854003, 244183}, NULL) = 0
gettimeofday({1419854003, 244248}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 244437}, NULL) = 0
gettimeofday({1419854003, 244516}, NULL) = 0
gettimeofday({1419854003, 244594}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=26920, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=26920, len=1}) = 0
gettimeofday({1419854003, 250616}, NULL) = 0
fcntl(25, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=31032, len=1}) = 0
fcntl(25, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=31032, len=1}) = 0
fcntl(25, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=31248, len=1}) = 0
fcntl(25, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=31248, len=1}) = 0
writev(103,
[{"\250\r\0\0\2\0\0\0S-1-5-18\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
3496}], 1) = 3496
epoll_wait(9, {{EPOLLIN, {u32=2541756464, u64=140271878676528}}}, 1,
30000) = 1
readv(63,
[{"\35\0\0\0\0\0\0\0gS\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}], 1) = 2092
gettimeofday({1419854003, 251629}, NULL) = 0
gettimeofday({1419854003, 251695}, NULL) = 0
gettimeofday({1419854003, 251758}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 251941}, NULL) = 0
gettimeofday({1419854003, 252022}, NULL) = 0
gettimeofday({1419854003, 252100}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=39416, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=39416, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=11800, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=11800, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=15836, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=15836, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=29212, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=29212, len=1}) = 0
writev(63, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}],
1)
= 3496
epoll_wait(9, {{EPOLLIN, {u32=2538724032, u64=140271875644096}}}, 1,
30000) = 1
readv(105, [{"0\10\0\0", 4}], 1)        = 4
epoll_wait(9, {{EPOLLIN, {u32=2536963296, u64=140271873883360}}}, 1,
30000) = 1
readv(61,
[{"\35\0\0\0\0\0\0\0hS\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}], 1) = 2092
gettimeofday({1419854003, 271593}, NULL) = 0
gettimeofday({1419854003, 271662}, NULL) = 0
gettimeofday({1419854003, 271726}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 271919}, NULL) = 0
gettimeofday({1419854003, 272002}, NULL) = 0
gettimeofday({1419854003, 272081}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=39416, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=39416, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=11800, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=11800, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=15836, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=15836, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=29212, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=29212, len=1}) = 0
writev(61, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}],
1)
= 3496
epoll_wait(9, {{EPOLLIN, {u32=2546587904, u64=140271883507968}}}, 1,
30000) = 1
readv(81,
[{"\35\0\0\0\0\0\0\0}S\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}], 1) = 2092
gettimeofday({1419854003, 291592}, NULL) = 0
gettimeofday({1419854003, 291662}, NULL) = 0
gettimeofday({1419854003, 291725}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 291923}, NULL) = 0
gettimeofday({1419854003, 292005}, NULL) = 0
gettimeofday({1419854003, 292082}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=39416, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=39416, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=11800, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=11800, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=4252, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=4252, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=30108, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=30108, len=1}) = 0
writev(81, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}],
1)
= 3496
epoll_wait(9, {{EPOLLIN, {u32=2540754848, u64=140271877674912}}}, 1,
30000) = 1
readv(77,
[{"\34\0\0\0\0\0\0\0{V\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}], 1) = 2092
gettimeofday({1419854003, 294575}, NULL) = 0
gettimeofday({1419854003, 294641}, NULL) = 0
gettimeofday({1419854003, 294701}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 294876}, NULL) = 0
gettimeofday({1419854003, 294945}, NULL) = 0
gettimeofday({1419854003, 295014}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=8528, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=8528, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=15000, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=15000, len=1}) = 0
writev(77, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}],
1)
= 3496
epoll_wait(9, {{EPOLLIN, {u32=2527645056, u64=140271864565120}}}, 1,
30000) = 1
readv(101,
[{"\34\0\0\0\0\0\0\0\26Y\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}],
1) = 2092
gettimeofday({1419854003, 302283}, NULL) = 0
gettimeofday({1419854003, 302351}, NULL) = 0
gettimeofday({1419854003, 302413}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 302598}, NULL) = 0
gettimeofday({1419854003, 302676}, NULL) = 0
gettimeofday({1419854003, 302753}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=37968, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=37968, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=5132, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=5132, len=1}) = 0
writev(101, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}],
1) = 3496
epoll_wait(9, {{EPOLLIN, {u32=2545364480, u64=140271882284544}}}, 1,
30000) = 1
readv(83,
[{"\34\0\0\0\0\0\0\0\247S\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}], 1) = 2092
gettimeofday({1419854003, 309621}, NULL) = 0
gettimeofday({1419854003, 309691}, NULL) = 0
gettimeofday({1419854003, 309754}, NULL) = 0
fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
gettimeofday({1419854003, 309944}, NULL) = 0
gettimeofday({1419854003, 310024}, NULL) = 0
gettimeofday({1419854003, 310108}, NULL) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=1040, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=1040, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=13464, len=1}) = 0
fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=13464, len=1}) = 0


Regards,
Bruno Andrade.

On 12/29/2014 10:48 AM, Bruno Andrade wrote:> Hi,
>
> I'm having problems in a second domain controller machine. Every time a
> restart samba, few time after a samba process starts using almost 100% cpu.
>
> It's a Centos 6.5 x86_64 with the following:
>
> sernet-samba-libsmbclient0-4.1.6-7.el6.x86_64
> sernet-samba-ad-4.1.6-7.el6.x86_64
> sernet-build-key-1.1-4.noarch
> sernet-samba-libs-4.1.6-7.el6.x86_64
> sernet-samba-client-4.1.6-7.el6.x86_64
> sernet-samba-4.1.6-7.el6.x86_64
> sernet-samba-common-4.1.6-7.el6.x86_64
> sernet-samba-winbind-4.1.6-7.el6.x86_64
>
> The testparm outputs the following:
> Load smb config files from /etc/samba/smb.conf
> Processing section "[netlogon]"
> Processing section "[sysvol]"
> Processing section "[Profiles]"
> Processing section "[home]"
> Loaded services file OK.
> Server role: ROLE_ACTIVE_DIRECTORY_DC
> Press enter to see a dump of your service definitions
>
> [global]
>     dos charset = ISO8859-1
>     unix charset = cp850
>     workgroup = EXAMPLE
>     realm = EXAMPLE.COM
>     netbios aliases = FS.ROAMING.EXAMPLE.COM
>     interfaces = eth1
>     bind interfaces only = Yes
>     server role = active directory domain controller
>     passdb backend = samba_dsdb
>     allow dns updates = nonsecure and secure
>     server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
> winbind, ntp_signd, kcc, dnsupdate
>     rpc_server:tcpip = no
>     rpc_daemon:spoolssd = embedded
>     rpc_server:spoolss = embedded
>     rpc_server:winreg = embedded
>     rpc_server:ntsvcs = embedded
>     rpc_server:eventlog = embedded
>     rpc_server:srvsvc = embedded
>     rpc_server:svcctl = embedded
>     rpc_server:default = external
>     dsdb:schema update allowed = true
>     idmap_ldb:use rfc2307 = yes
>     idmap config * : backend = tdb
>     map archive = No
>     map readonly = no
>     store dos attributes = Yes
>     vfs objects = dfs_samba4, acl_xattr
>
> [netlogon]
>     path = /var/lib/samba/sysvol/example.com/scripts
>     read only = No
>
> [sysvol]
>     path = /var/lib/samba/sysvol
>     read only = No
>
> [Profiles]
>     path = /samba4/profiles/
>     read only = No
>
> [home]
>     path = /samba4/home/
>     read only = No
>
> Any suggestions?
>
> Regards,
> Bruno Andrade.

Bruno Andrade

2014-Dec-29 12:02 UTC

head link

[Samba] smbd's using up 100% of all cpu's and load avg slowly going up

Hi again,

Sorry, I forgot to include the fd used...

13 -> /var/lib/samba/private/sam.ldb.d/DC=EXAMPLE,DC=COM.ldb
16 -> /var/lib/samba/private/sam.ldb.d/metadata.tdb

the others refers to /var/run/samba/winbindd/pipe

Regards,
Bruno Andrade.

On 12/29/2014 11:56 AM, Bruno Andrade wrote:> Hi,
>
> Here is some output of "strace -ff -p" to the process using ~100%
CPU
>
> writev(75, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"...,
3496}],
> 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2539833808, u64=140271876753872}}}, 1,
> 30000) = 1
> readv(91,
>
[{"\34\0\0\0\0\0\0\0rT\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}],
> 1) = 2092
> gettimeofday({1419854003, 222035}, NULL) = 0
> gettimeofday({1419854003, 222103}, NULL) = 0
> gettimeofday({1419854003, 222169}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 222345}, NULL) = 0
> gettimeofday({1419854003, 222482}, NULL) = 0
> gettimeofday({1419854003, 222868}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=1488,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=1488,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=15644,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=15644,
> len=1}) = 0
> writev(91, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"...,
3496}],
> 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2540085760, u64=140271877005824}}}, 1,
> 30000) = 1
> readv(41,
>
[{"\34\0\0\0\0\0\0\0WS\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}],
> 1) = 2092
> gettimeofday({1419854003, 230871}, NULL) = 0
> gettimeofday({1419854003, 230939}, NULL) = 0
> gettimeofday({1419854003, 231002}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 231249}, NULL) = 0
> gettimeofday({1419854003, 231328}, NULL) = 0
> gettimeofday({1419854003, 231474}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=8580,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=8580,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=26136,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=26136,
> len=1}) = 0
> writev(41, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"...,
3496}],
> 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2524503808, u64=140271861423872}}}, 1,
> 30000) = 1
> readv(103,
>
[{"\34\0\0\0\0\0\0\0\303Y\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 2092}], 1) = 2092
> gettimeofday({1419854003, 244114}, NULL) = 0
> gettimeofday({1419854003, 244183}, NULL) = 0
> gettimeofday({1419854003, 244248}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 244437}, NULL) = 0
> gettimeofday({1419854003, 244516}, NULL) = 0
> gettimeofday({1419854003, 244594}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=26920,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=26920,
> len=1}) = 0
> gettimeofday({1419854003, 250616}, NULL) = 0
> fcntl(25, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=31032,
> len=1}) = 0
> fcntl(25, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=31032,
> len=1}) = 0
> fcntl(25, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=31248,
> len=1}) = 0
> fcntl(25, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=31248,
> len=1}) = 0
> writev(103,
>
[{"\250\r\0\0\2\0\0\0S-1-5-18\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 3496}], 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2541756464, u64=140271878676528}}}, 1,
> 30000) = 1
> readv(63,
>
[{"\35\0\0\0\0\0\0\0gS\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}],
> 1) = 2092
> gettimeofday({1419854003, 251629}, NULL) = 0
> gettimeofday({1419854003, 251695}, NULL) = 0
> gettimeofday({1419854003, 251758}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 251941}, NULL) = 0
> gettimeofday({1419854003, 252022}, NULL) = 0
> gettimeofday({1419854003, 252100}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=39416,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=39416,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=11800,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=11800,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=15836,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=15836,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=29212,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=29212,
> len=1}) = 0
> writev(63, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"...,
3496}],
> 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2538724032, u64=140271875644096}}}, 1,
> 30000) = 1
> readv(105, [{"0\10\0\0", 4}], 1)        = 4
> epoll_wait(9, {{EPOLLIN, {u32=2536963296, u64=140271873883360}}}, 1,
> 30000) = 1
> readv(61,
>
[{"\35\0\0\0\0\0\0\0hS\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}],
> 1) = 2092
> gettimeofday({1419854003, 271593}, NULL) = 0
> gettimeofday({1419854003, 271662}, NULL) = 0
> gettimeofday({1419854003, 271726}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 271919}, NULL) = 0
> gettimeofday({1419854003, 272002}, NULL) = 0
> gettimeofday({1419854003, 272081}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=39416,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=39416,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=11800,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=11800,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=15836,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=15836,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=29212,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=29212,
> len=1}) = 0
> writev(61, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"...,
3496}],
> 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2546587904, u64=140271883507968}}}, 1,
> 30000) = 1
> readv(81,
>
[{"\35\0\0\0\0\0\0\0}S\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}],
> 1) = 2092
> gettimeofday({1419854003, 291592}, NULL) = 0
> gettimeofday({1419854003, 291662}, NULL) = 0
> gettimeofday({1419854003, 291725}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 291923}, NULL) = 0
> gettimeofday({1419854003, 292005}, NULL) = 0
> gettimeofday({1419854003, 292082}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=39416,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=39416,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=11800,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=11800,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=4252,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=4252,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=30108,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=30108,
> len=1}) = 0
> writev(81, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"...,
3496}],
> 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2540754848, u64=140271877674912}}}, 1,
> 30000) = 1
> readv(77,
>
[{"\34\0\0\0\0\0\0\0{V\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
2092}],
> 1) = 2092
> gettimeofday({1419854003, 294575}, NULL) = 0
> gettimeofday({1419854003, 294641}, NULL) = 0
> gettimeofday({1419854003, 294701}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 294876}, NULL) = 0
> gettimeofday({1419854003, 294945}, NULL) = 0
> gettimeofday({1419854003, 295014}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=8528,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=8528,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=15000,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=15000,
> len=1}) = 0
> writev(77, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"...,
3496}],
> 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2527645056, u64=140271864565120}}}, 1,
> 30000) = 1
> readv(101,
>
[{"\34\0\0\0\0\0\0\0\26Y\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 2092}], 1) = 2092
> gettimeofday({1419854003, 302283}, NULL) = 0
> gettimeofday({1419854003, 302351}, NULL) = 0
> gettimeofday({1419854003, 302413}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 302598}, NULL) = 0
> gettimeofday({1419854003, 302676}, NULL) = 0
> gettimeofday({1419854003, 302753}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=37968,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=37968,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=5132,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=5132,
> len=1}) = 0
> writev(101, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"...,
3496}],
> 1) = 3496
> epoll_wait(9, {{EPOLLIN, {u32=2545364480, u64=140271882284544}}}, 1,
> 30000) = 1
> readv(83,
>
[{"\34\0\0\0\0\0\0\0\247S\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 2092}], 1) = 2092
> gettimeofday({1419854003, 309621}, NULL) = 0
> gettimeofday({1419854003, 309691}, NULL) = 0
> gettimeofday({1419854003, 309754}, NULL) = 0
> fcntl(16, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=176, len=1}) = 0
> fcntl(16, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=176, len=1}) = 0
> gettimeofday({1419854003, 309944}, NULL) = 0
> gettimeofday({1419854003, 310024}, NULL) = 0
> gettimeofday({1419854003, 310108}, NULL) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14324,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=14576,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=17520,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=16112,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=1040,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=1040,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=13464,
> len=1}) = 0
> fcntl(13, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=13464,
> len=1}) = 0
>
>
> Regards,
> Bruno Andrade.
>
> On 12/29/2014 10:48 AM, Bruno Andrade wrote:
>> Hi,
>>
>> I'm having problems in a second domain controller machine. Every
time a
>> restart samba, few time after a samba process starts using almost 100%
cpu.
>>
>> It's a Centos 6.5 x86_64 with the following:
>>
>> sernet-samba-libsmbclient0-4.1.6-7.el6.x86_64
>> sernet-samba-ad-4.1.6-7.el6.x86_64
>> sernet-build-key-1.1-4.noarch
>> sernet-samba-libs-4.1.6-7.el6.x86_64
>> sernet-samba-client-4.1.6-7.el6.x86_64
>> sernet-samba-4.1.6-7.el6.x86_64
>> sernet-samba-common-4.1.6-7.el6.x86_64
>> sernet-samba-winbind-4.1.6-7.el6.x86_64
>>
>> The testparm outputs the following:
>> Load smb config files from /etc/samba/smb.conf
>> Processing section "[netlogon]"
>> Processing section "[sysvol]"
>> Processing section "[Profiles]"
>> Processing section "[home]"
>> Loaded services file OK.
>> Server role: ROLE_ACTIVE_DIRECTORY_DC
>> Press enter to see a dump of your service definitions
>>
>> [global]
>>     dos charset = ISO8859-1
>>     unix charset = cp850
>>     workgroup = EXAMPLE
>>     realm = EXAMPLE.COM
>>     netbios aliases = FS.ROAMING.EXAMPLE.COM
>>     interfaces = eth1
>>     bind interfaces only = Yes
>>     server role = active directory domain controller
>>     passdb backend = samba_dsdb
>>     allow dns updates = nonsecure and secure
>>     server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
>> winbind, ntp_signd, kcc, dnsupdate
>>     rpc_server:tcpip = no
>>     rpc_daemon:spoolssd = embedded
>>     rpc_server:spoolss = embedded
>>     rpc_server:winreg = embedded
>>     rpc_server:ntsvcs = embedded
>>     rpc_server:eventlog = embedded
>>     rpc_server:srvsvc = embedded
>>     rpc_server:svcctl = embedded
>>     rpc_server:default = external
>>     dsdb:schema update allowed = true
>>     idmap_ldb:use rfc2307 = yes
>>     idmap config * : backend = tdb
>>     map archive = No
>>     map readonly = no
>>     store dos attributes = Yes
>>     vfs objects = dfs_samba4, acl_xattr
>>
>> [netlogon]
>>     path = /var/lib/samba/sysvol/example.com/scripts
>>     read only = No
>>
>> [sysvol]
>>     path = /var/lib/samba/sysvol
>>     read only = No
>>
>> [Profiles]
>>     path = /samba4/profiles/
>>     read only = No
>>
>> [home]
>>     path = /samba4/home/
>>     read only = No
>>
>> Any suggestions?
>>
>> Regards,
>> Bruno Andrade.

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