HP-UX 11.11 and CIFS 02.01.01

[Coolmar]

Hi everyone,

Samba/CIFS has stopped working for me (I can't see my shares anymore) and I get the following error in my smb.log file. Any ideas?

[2005/02/24 11:56:02, 0] smbd/server.c:open_sockets_smbd(382)
open_sockets_smbd: accept: No buffer space available

[Pete Randall]

Sounds like you need to clear the buffer space. Can you stop and restart samba?


Pete

[Coolmar]

Hi,

Yes, I can stop and restart Samba but it doesn't seem to fix it.

S.

[RAC_1]

Post following

swapinfo -mat
glance -m

How much cache has been set?
You may be running out of swapspace, memory.

Anil

[Coolmar]

TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 3968 0 3968 0% 0 - 1 /dev/vg00/lvol2
dev 4000 909 3091 23% 0 - 0 /dev/vg01/swap2
reserve - 919 -919
memory 824 235 589 29%
total 8792 2063 6729 23% - 0 -


Glance
CPU Util | 1% 2% 16%
Disk Util | 0% 1% 3%
Mem Util S SU UB B | 97% 97% 97%
Swap Util U UR R | 24% 23% 24%
----------------------------------------------------------------------------------------------------------------------------------------------
CPU REPORT Users= 2
State Current Average High Time Cum Time
--------------------------------------------------------------------------------
User 0.0 1.2 7.3 0.00 0.85
Nice 0.0 0.0 0.0 0.00 0.00
Negative Nice 0.0 0.1 0.0 0.00 0.08
RealTime 0.0 0.0 1.4 0.00 0.02
System 0.0 0.6 4.7 0.00 0.38
Interrupt 0.0 0.1 0.2 0.00 0.10
ContextSwitch 0.0 0.0 0.1 0.00 0.03
Traps 0.0 0.0 0.0 0.00 0.00
Vfaults 0.0 0.2 2.7 0.00 0.12
Idle 98.7 97.7 100.0 0.74 66.64

Top CPU user: PID 27221, glance 1.3% cpu util
Active CPUs: 3

[RAC_1]

sar -b 5 5
vmstat 5 5
glance -m (and not just glance)

What is the buffer cache set on your machine?? Dynamic cache ot static??

Also what is your setting for max connections in smb.conf??

Anil

[Coolmar]

sar -b 5 5
HP-UX psi3 B.11.11 U 9000/800 02/24/05

13:01:34 bread/s lread/s %rcache bwrit/s lwrit/s %wcache pread/s pwrit/s
13:01:39 0 365 100 6 18 67 0 0
13:01:44 0 882 100 4 20 80 0 0
13:01:49 0 146 100 6 11 44 0 0
13:01:54 0 60 100 5 6 26 0 0
13:01:59 0 6 100 4 5 12 0 0

Average 0 292 100 5 12 58 0 0

vmstat 5 5
procs memory page faults cpu
r b w avm free re at pi po fr de sr in sy cs us sy id
1 0 0 1110908 10291 84 11 45 14 9 0 817 743 4888 357 2 1 97
1 0 0 1110908 10229 29 0 10 0 0 0 0 1109 23149 1275 24 2 74
2 0 0 1098804 10192 9 0 12 0 0 0 0 1188 32907 1446 29 2 69
2 0 0 1098804 10078 2 0 10 0 0 0 0 1210 28492 1485 25 4 71
2 0 0 1113510 10051 148 15 6 0 0 0 0 1232 30460 1560 24 4 72

Glance -m
MEMORY REPORT Users= 2
Event Current Cumulative Current Rate Cum Rate High Rate
--------------------------------------------------------------------------------
Page Faults 0 0 0.0 0.0 0.0
Page In 0 0 0.0 0.0 0.0
Page Out 0 0 0.0 0.0 0.0
KB Paged In 0kb 0kb 0.0 0.0 0.0
KB Paged Out 0kb 0kb 0.0 0.0 0.0
Reactivations 0 0 0.0 0.0 0.0
Deactivations 0 0 0.0 0.0 0.0
KB Deactivated 0kb 0kb 0.0 0.0 0.0
VM Reads 0 0 0.0 0.0 0.0
VM Writes 0 0 0.0 0.0 0.0

Total VM : 4.61gb Sys Mem : 366.2mb User Mem: 826.5mb Phys Mem: 1.98gb
Active VM: 4.25gb Buf Cache: 800.0mb Free Mem: 36.3mb

[Coolmar]

Sorry...forgot these two:

max_connections: not set

Buffer cache: not sure what you mean...if you mean in the kernel ...

buf_cache_hash_locks = 128 and static

[RAC_1]

Buffer cache setting is dbc_max_pct and dbc_min_pct or nbuf, bufpages kernel parameters.

What are your settings??

Also what is the tcp_conn_request_max setting??

ndd -get /dev/tcp tcp_conn_request_max.
Also all latest network related patches.

Anil

[Coolmar]

dbc_max_pct 50
min 5
nbuf 0
bufpages 204800
tcp_conn_request_max 4096

These settings are the same as I have on another server which is working with Samba.

I have a number of patches on the system. How can I narrow down the network only patches?

[RAC_1]

Look for latest network related patches on itrc and apply.

Buffer cache (your are using static one-setting of bufpages) looks OK. Also tcp_conn_request_max looks OK.
Is there any difference betwen config files on working system and on system where samba is not working??

Anil

[Coolmar]

No, I can't find any differences at all. I think I have more patches on the system that is not working....so I will have to go through each patch. That is all that I can think of for now. Thanks for your help!

S.