Samba smbd processes overload and panic
"Dante F. B. Colò"
dante01010 at gmail.com
Sun Oct 12 16:38:29 UTC 2014
Hello Johan,
Sendfile is disabled, this is my setup , all shares have the full_audit
module enable but i already tried disable ,and the same for xattr_tdb
which is enabled on all shares located in ZFS volumes since ZFS has no
support for extended attributes yet on Freebsd i decided to use this
module, i didn't disabled zfsacl module , but i'm thinking about move
everthing to a UFS2 partition and use vfs_acl_xattr for ntfs like acls,
i just don't like to use a Windows machine to set acls on folders it's
too slow and i couldn't find a way to set acls from command line on
samba, it's possible with
smbcacls command but it's limited , rudimentary and even slower, someone
correct me if i'm wrong.
Regards
Dante F. B. Colò
[global]
server role = classic primary domain controller
netbios name = SALAMONE-PDC
workgroup = SALAMONE
server string = %L
os level = 255
domain logons= yes
preferred master = yes
domain master = yes
wins support = yes
name resolve order = lmhosts wins host bcast
max stat cache size = 768
security = user
add user script = /home/samba/scripts/smbadduser.sh "%u"
add machine script = /usr/sbin/pw useradd -g machines -s /sbin/nologin
-d /dev/null -c "%u" -n "%u"
unix password sync = no
admin users = @smbadmins
log file = /var/log/samba4/log.%I
max log size = 4096
log level = 1
debug class = yes
debug prefix timestamp = yes
syslog = 0
deadtime=60
time server = yes
logon path =
logon drive = H:
logon script =%G/logon.bat
#
[netlogon]
path = "/home/samba/netlogon"
browsable = no
writable = no
guest ok = yes
#
[homes]
directory mask = 0700
create mask = 0700
browsable = no
writable = yes
valid users = %S
#
[Diligencias]
vfs objects = zfsacl,xattr_tdb,full_audit
xattr_tdb:file = /var/db/samba4/private/shares_xattrs/diligencias.tdb
full_audit:prefix = "%I|%u|%P"
full_audit:success = rmdir rename unlink
full_audit:failure = rmdir rename unlink
full_audit:facility = LOCAL0
full_audit:priority = NOTICE
path = "/samba/salamone/diligencias"
inherit owner = yes
inherit permissions = yes
writable = yes
browsable = yes
ea support = yes
store dos attributes = yes
map archive = no
map system = no
map readonly = no
map hidden = no
level2 oplocks = no
oplocks = no
#
[RH]
vfs objects =full_audit
full_audit:prefix = "%I|%u|%P"
full_audit:success = rmdir rename unlink
full_audit:failure = rmdir rename unlink
full_audit:facility = LOCAL0
full_audit:priority = NOTICE
path = "/local_disk_2/salamone/dados_gerais/rh"
writable = yes
browsable = yes
inherit owner = yes
create mask =0777
directory mask =0777
store dos attributes = yes
ea support = yes
valid users
=@smbadmins,gabriela.martins,leonardo.oliveira,robezia.silva,amanda.zonta,neildes.digesu,jose.salamone,miriam.lucateli,meiriele.oliveira
map archive = no
map system = no
map readonly = no
map hidden = no
level2 oplocks = no
oplocks = no
#
[Eventos]
vfs objects = zfsacl,xattr_tdb,full_audit
xattr_tdb:file = /var/db/samba4/private/shares_xattrs/eventos.tdb
full_audit:prefix = "%I|%u|%P"
full_audit:success = rmdir rename unlink
full_audit:failure = rmdir rename unlink
full_audit:facility = LOCAL0
full_audit:priority = NOTICE
path = "/samba/salamone/eventos"
writable = yes
browsable = yes
inherit owner = yes
inherit permissions = yes
store dos attributes = yes
ea support = yes
map archive = no
map system = no
map readonly = no
map hidden = no
level2 oplocks = no
oplocks = no
On 10/12/2014 06:42 AM, Johan Hendriks wrote:
>
>
> Op vrijdag 10 oktober 2014 heeft "Dante F. B. Colò"
> <dante01010 at gmail.com <mailto:dante01010 at gmail.com>> het volgende
> geschreven:
>
> Greetings everyone
>
> I recently deployed Samba 4.0.21 running as classic pdc on
> freebsd 10 version RELEASE-p9, most of shares are in a ZFS volume
> with vfs_zfsacl module, some smbd processes stays constantly with
> around 70% cpu usage sometimes 90% and dies with signal 11
> according the log message , i also tried enable debug but didn't
> show anything helpful or maybe i wasn't able to understand the
> entire log, is there anybody here experiencing something similar ?
>
> Best Regards
> Dante F. B. Colò
>
> INTERNAL ERROR: Signal 11 in pid 59865 (4.0.21)
> Please read the Trouble-Shooting section of the Samba HOWTO
> [2014/10/10 08:33:08.955295, 0]
> ===============================================================
> [2014/10/10 08:33:08.955326, 0] PANIC (pid 59865): internal error
> [2014/10/10 08:33:08.957939, 0] BACKTRACE: 7 stack frames:
> #0 0x802b5a921 <log_stack_trace+0x21> at
> /usr/local/lib/libsmbconf.so.0
> #1 0x802b5a708 <smb_panic_s3+0x98> at
> /usr/local/lib/libsmbconf.so.0
> #2 0x80146ef25 <smb_panic+0x35> at
> /usr/local/lib/libsamba-util.so.0
> #3 0x80146f50a <smb_panic+0x61a> at
> /usr/local/lib/libsamba-util.so.0
> #4 0x80146eee3 <fault_setup+0x73> at
> /usr/local/lib/libsamba-util.so.0
> #5 0x8044ce40b <_swapcontext+0x15b> at /lib/libthr.so.3
> #6 0x8044cdff3 <sigaction+0x343> at /lib/libthr.so.3
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>
>
> A shot in the dark, but do you have use sendfile = yes in your
> /usr/local/etc/smb4.conf file?
> If so, set it to no or comment out the line and restart samba.
>
>
> Regards,
> Johan
>
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