Date: Sat, 5 May 2001 20:25:57 +0300 (EEST) From: Pekka Savola <pekkas@netcore.fi> To: <freebsd-stable@freebsd.org> Subject: 4.3-S: No buffer space available Message-ID: <Pine.LNX.4.33.0105052014110.21251-100000@netcore.fi>
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Hi,
Running on 4.3-S on Dual P3/866 (self-compiled for SMP, dummynet etc.):
[root@xxx /root] # snmpwalk xxx yyy
snmpwalk: Failure in sendto (No buffer space available)
[root@xxx /root] # netstat -m
8012/8576/65536 mbufs in use (current/peak/max):
6581 mbufs allocated to data
1431 mbufs allocated to packet headers
6300/6682/16384 mbuf clusters in use (current/peak/max)
15508 Kbytes allocated to network (31% of mb_map in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines
[root@xxx /root] # sysctl kern | grep files
kern.maxfiles: 16424
kern.maxfilesperproc: 16424
kern.openfiles: 2709
---
last pid: 84147; load averages: 0.52, 0.66, 0.61 up 0+01:38:21 13:12:34
713 processes: 12 running, 688 sleeping, 13 stopped
CPU states: 14.1% user, 0.0% nice, 20.7% system, 4.0% interrupt, 61.3% idle
Mem: 516M Active, 316M Inact, 134M Wired, 37M Cache, 112M Buf, 1664K Free
Swap: 1024M Total, 92K Used, 1024M Free
---
Pushing through 20 Mbit/s steady as we speak.
This seems to have been mentioned in the beginning of April with no clear
resolution.
A few kernel options mentioned in the posts:
---
cpu I686_CPU
maxusers 512
options NMBCLUSTERS=16384
options SMP # Symmetric MultiProcessor Kernel
options APIC_IO # Symmetric (APIC) I/O
---
This is a system with 1 GB of RAM. Network card is:
fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0xccc0-0xccff mem
0xf9000000-0xf90fffff,0xf9100000-0xf9100fff irq 10 at device 8.0 on pci1
What's wrong? There definitely should be enough buffers.
Also: userspace froze earlier today for some odd reason; ping and
traceroute responded, ipfw worked, tcp connection could be established but
the daemon listening to the port never replied. Nothing in the log or the
console. Ideas?
Please Cc:.
--
Pekka Savola "Tell me of difficulties surmounted,
Netcore Oy not those you stumble over and fall"
Systems. Networks. Security. -- Robert Jordan: A Crown of Swords
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