Date: Thu, 15 Jan 1998 08:18:05 -0600 (CST) From: Kevin Day <toasty@home.dragondata.com> To: current@freebsd.org Subject: No buffer space available Message-ID: <199801151418.IAA19842@home.dragondata.com>
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A while back someone (bruce?) had asked me to post sysctl and vmstat
listings while I was getting 'no buffer space available' messages. Well,
since the machine uses yp and nfs a lot, when it ran out of buffer space,
I'm essentially dead... This is after the machine recovered on it's own,
about 15 mins later.. (sometimes it comes back, sometimes it locks up, or
nicely suggests more swap before locking up, I've got 150MB now, with 128MB
ram)
The first sign of something going wrong is users getting their botchk cron
jobs mailing them with yp_client complaining about no buffer space, but
still working.
If anyone would like any more information, let me know.
Kevin
kern.ostype: FreeBSD
kern.osrelease: 3.0-CURRENT
kern.osrevision: 199506
kern.version: FreeBSD 3.0-CURRENT #0: Wed Jan 7 19:50:42 CST 1998
root@shell.dragondata.com:/usr/src/sys/compile/SHELL
kern.maxvnodes: 13153
kern.maxproc: 8212
kern.maxfiles: 16424
kern.argmax: 65536
kern.securelevel: -1
kern.hostname: shell.dragondata.com
kern.hostid: 0
kern.clockrate: { hz = 100, tick = 10000, tickadj = 5, profhz = 1024, stathz = 128 }
kern.posix1version: 199009
kern.ngroups: 16
kern.job_control: 1
kern.saved_ids: 0
kern.boottime: { sec = 884807567, usec = 142017 } Wed Jan 14 13:52:47 1998
kern.domainname: dragondata.com
kern.update: 30
kern.osreldate: 300001
kern.bootfile: /kernel
kern.maxfilesperproc: 16424
kern.maxprocperuid: 8211
kern.dumpdev: { major = 255, minor = -65281 }
kern.ipc.maxsockbuf: 262144
kern.ipc.sockbuf_waste_factor: 8
kern.ipc.somaxconn: 128
kern.ipc.max_linkhdr: 16
kern.ipc.max_protohdr: 40
kern.ipc.max_hdr: 56
kern.ipc.max_datalen: 44
kern.dummy: 0
kern.ps_strings: -272637968
kern.usrstack: -272637952
kern.shutdown_timeout: 120
kern.acct_suspend: 2
kern.acct_resume: 4
kern.acct_chkfreq: 15
kern.fast_vfork: 0
kern.quantum: 10
kern.zone:
ITEM SIZE LIMIT USED FREE REQUESTS
PIPE: 160, 0, 21, 183, 23536
AIOLIO: 704, 0, 0, 0, 0
AIOL: 64, 0, 0, 0, 0
AIOCB: 128, 0, 0, 0, 0
AIOP: 32, 0, 0, 0, 0
AIO: 96, 0, 0, 0, 0
NAMEI: 1024, 0, 0, 32, 63406196
PV ENTRY: 28, 1683354, 12162, 8461, 4619617
MAP ENTRY: 36, 0, 1334, 602, 703393
KMAP ENTRY: 36, 5069, 130, 224, 12829
MAP: 108, 0, 9, 1, 9
VM OBJECT: 120, 0, 2388, 1030, 323422
kern.consmute: 0
vm.loadavg: { 0.21 0.40 0.74 }
vm.v_free_min: 228
vm.v_free_target: 815
vm.v_free_reserved: 131
vm.v_inactive_target: 4700
vm.v_cache_min: 2254
vm.v_cache_max: 9016
vm.v_pageout_free_min: 34
vm.pageout_algorithm: 0
vm.swap_enabled: 1
vm.swap_idle_threshold1: 2
vm.swap_idle_threshold2: 10
vm.pageout_stats_max: 815
vm.pageout_full_stats_interval: 16
vm.pageout_stats_interval: 4
vm.pageout_stats_free_max: 25
vm.swap_idle_enabled: 0
vm.defer_swapspace_pageouts: 0
vm.disable_swapspace_pageouts: 0
vm.max_page_launder: 32
vfs.nfs.nfs_privport: 0
vfs.nfs.async: 0
vfs.nfs.gatherdelay: 10000
vfs.nfs.gatherdelay_v3: 0
vfs.nfs.defect: 0
vfs.nfs.diskless_valid: 0
vfs.nfs.diskless_rootpath:
vfs.nfs.diskless_swappath:
vfs.cache.numneg: 175
vfs.cache.numcache: 12463
vfs.cache.numcalls: 252839623
vfs.cache.dothits: 5278
vfs.cache.dotdothits: 19270
vfs.cache.numchecks: 297389113
vfs.cache.nummiss: 139536
vfs.cache.nummisszap: 1476
vfs.cache.numposzaps: 2139
vfs.cache.numposhits: 252651882
vfs.cache.numnegzaps: 74
vfs.cache.numneghits: 19968
vfs.cache.numcwdcalls: 5764
vfs.cache.numcwdfail1: 18
vfs.cache.numcwdfail2: 25
vfs.cache.numcwdfail3: 0
vfs.cache.numcwdfail4: 0
vfs.cache.numcwdfound: 5721
vfs.numdirtybuffers: 1
vfs.lodirtybuffers: 139
vfs.hidirtybuffers: 279
vfs.numfreebuffers: 2435
vfs.lofreebuffers: 120
vfs.hifreebuffers: 240
vfs.maxbufspace: 8544256
vfs.bufspace: 8544256
vfs.maxvmiobufspace: 5696170
vfs.vmiospace: 5967872
vfs.maxmallocbufspace: 427212
vfs.bufmallocspace: 327680
vfs.kvafreespace: 86016
vfs.ioopt: 0
vfs.usermount: 0
vfs.aio.max_aio_per_proc: 32
vfs.aio.max_aio_queue_per_proc: 256
vfs.aio.max_aio_procs: 32
vfs.aio.num_aio_procs: 0
vfs.aio.num_queue_count: 0
vfs.aio.max_aio_queue: 1024
vfs.aio.target_aio_procs: 0
vfs.aio.max_buf_aio: 16
vfs.aio.num_buf_aio: 0
vfs.aio.aiod_lifetime: 3000
vfs.aio.aiod_timeout: 1000
net.local.stream.sendspace: 8192
net.local.stream.recvspace: 8192
net.local.dgram.maxdgram: 2048
net.local.dgram.recvspace: 4096
net.local.inflight: 0
net.inet.ip.portrange.lowfirst: 1023
net.inet.ip.portrange.lowlast: 600
net.inet.ip.portrange.first: 1024
net.inet.ip.portrange.last: 5000
net.inet.ip.portrange.hifirst: 40000
net.inet.ip.portrange.hilast: 44999
net.inet.ip.forwarding: 0
net.inet.ip.redirect: 1
net.inet.ip.ttl: 64
net.inet.ip.rtexpire: 3600
net.inet.ip.rtminexpire: 10
net.inet.ip.rtmaxcache: 128
net.inet.ip.sourceroute: 0
net.inet.ip.intr_queue_maxlen: 50
net.inet.ip.intr_queue_drops: 0
net.inet.ip.subnets_are_local: 0
net.inet.icmp.maskrepl: 0
net.inet.icmp.bmcastecho: 1
net.inet.tcp.rfc1323: 1
net.inet.tcp.rfc1644: 1
net.inet.tcp.mssdflt: 512
net.inet.tcp.rttdflt: 3
net.inet.tcp.keepidle: 14400
net.inet.tcp.keepintvl: 150
net.inet.tcp.sendspace: 16384
net.inet.tcp.recvspace: 16384
net.inet.tcp.keepinit: 150
net.inet.tcp.log_in_vain: 0
net.inet.tcp.always_keepalive: 0
net.inet.udp.checksum: 1
net.inet.udp.maxdgram: 9216
net.inet.udp.recvspace: 41600
net.inet.udp.log_in_vain: 0
net.inet.raw.maxdgram: 8192
net.inet.raw.recvspace: 8192
net.link.generic.system.ifcount: 5
net.link.ether.inet.prune_intvl: 300
net.link.ether.inet.max_age: 1200
net.link.ether.inet.host_down_time: 20
net.link.ether.inet.maxtries: 5
net.link.ether.inet.useloopback: 1
net.link.ether.inet.proxyall: 0
debug.elf_trace: 0
debug.fdexpand: 116
debug.ttydebug: 0
debug.nchash: 16383
debug.ncnegfactor: 16
debug.numneg: 175
debug.numcache: 12463
debug.vfscache: 1
debug.vnsize: 144
debug.ncsize: 36
debug.numvnodes: 13250
debug.wantfreevnodes: 25
debug.freevnodes: 11382
debug.disablecwd: 0
debug.if_tun_debug: 0
hw.machine: i386
hw.model: Pentium
hw.ncpu: 2
hw.byteorder: 1234
hw.physmem: 82288640
hw.usermem: 59846656
hw.pagesize: 4096
hw.floatingpoint: 1
hw.machine_arch: ibm-pc
machdep.consdev: { major = 0, minor = 0 }
machdep.adjkerntz: 21600
machdep.disable_rtc_set: 0
machdep.wall_cmos_clock: 0
machdep.do_dump: 1
machdep.smp_active: 1
machdep.smp_cpus: 2
machdep.invltlb_ok: 1
machdep.do_page_zero_idle: 0
machdep.i8254_freq: 1193182
machdep.conspeed: 9600
user.cs_path: /usr/bin:/bin:/usr/sbin:/sbin:
user.bc_base_max: 99
user.bc_dim_max: 2048
user.bc_scale_max: 99
user.bc_string_max: 1000
user.coll_weights_max: 0
user.expr_nest_max: 32
user.line_max: 2048
user.re_dup_max: 255
user.posix2_version: 199212
user.posix2_c_bind: 0
user.posix2_c_dev: 0
user.posix2_char_term: 0
user.posix2_fort_dev: 0
user.posix2_fort_run: 0
user.posix2_localedef: 0
user.posix2_sw_dev: 0
user.posix2_upe: 0
user.stream_max: 20
user.tzname_max: 255
Memory statistics by bucket size
Size In Use Free Requests HighWater Couldfree
16 69 699 64485383 1280 0
32 1693 867 30307 640 10
64 12905 791 189919562 320 201
128 712 152 63117075 160 0
256 26824 216 126269449 80 364331
512 108 44 21249 40 434
1K 319 121 10107 20 144
2K 23 17 84 10 17
4K 8 1 91 5 0
8K 2 1 11 5 0
16K 8 0 8 5 0
32K 3 0 4 5 0
64K 1 0 1 5 0
Memory usage type by bucket size
Size Type(s)
16 sysctl, NFSV3 srvdesc, soname, ether_multi, routetbl, pcb, vnodes,
proc, devbuf, temp
32 Gzip trees, sysctl, NFS req, in_multi, ether_multi, pgrp, subproc,
routetbl, pcb, vnodes, devbuf, temp, kld
64 Gzip trees, lockf, NFS req, file, session, routetbl, pcb, NFS daemon,
namecache, ifaddr, devbuf
128 Gzip trees, zombie, file desc, routetbl, pcb, namecache, ZONE, cred,
ifaddr, ttys, temp
256 Gzip trees, NFSV3 srvdesc, Export Host, socket, VM map, file desc,
subproc, FFS node, routetbl, pcb, NFS daemon, NFS srvsock, NFS node,
vnodes, namecache, devbuf, temp
512 Gzip trees, NFS mount, ioctlops, file desc, UFS mount, BIO buffer,
mount, pcb, NFS daemon, proc, devbuf, temp
1K Gzip trees, BIO buffer, NQNFS Lease, devbuf, temp
2K Gzip trees, UFS mount, BIO buffer, proc, ttys, devbuf
4K devbuf, temp
8K Gzip trees, proc
16K MSDOSFS mount, devbuf, mbuf
32K Gzip trees, UFS quota, UFS ihash, NFS node
64K namecache
Memory statistics by type Type Kern
Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)
Gzip trees 0 0K 44K 19661K 412 0 0 32,64,128,256,512,1K,2K,8K,32K
sysctl 0 0K 1K 19661K 8 0 0 16,32
NFSV3 srvdesc 0 0K 1K 19661K 46 0 0 16,256
Export Host 1 1K 1K 19661K 5 0 0 256
lockf 7 1K 2K 19661K 22317 0 0 64
NFS req 15 1K 3K 19661K 488441 0 0 32,64
NFS mount 3 2K 2K 19661K 4 0 0 512
soname 4 1K 1K 19661K 1444124 0 0 16
in_multi 2 1K 1K 19661K 2 0 0 32
ether_multi 7 1K 1K 19661K 7 0 0 16,32
socket 139 35K 46K 19661K126106686 0 0 256
ioctlops 0 0K 1K 19661K 1 0 0 512
zombie 1 1K 2K 19661K 20602 0 0 128
file 335 21K 32K 19661K 63210409 0 0 64
session 51 4K 5K 19661K 3446 0 0 64
pgrp 54 2K 3K 19661K 4134 0 0 32
VM map 71 18K 29K 19661K 20672 0 0 256
file desc 73 10K 18K 19661K 21249 0 0 128,256,512
subproc 110 12K 19K 19661K 41313 0 0 32,256
FFS node 11776 2944K 3157K 19661K 95725 0 0 256
UFS mount 3 5K 5K 19661K 3 0 0 512,2K
BIO buffer 310 327K 419K 19661K 4393 0 0 512,1K,2K
mount 5 3K 3K 19661K 6 0 0 512
routetbl 142 20K 24K 19661K 648 0 0 16,32,64,128,256
pcb 239 43K 49K 19661K126114411 0 0 16,32,64,128,256,512
UFS quota 1 32K 32K 19661K 1 0 0 32K
UFS ihash 1 32K 32K 19661K 1 0 0 32K
NQNFS Lease 1 1K 1K 19661K 1 0 0 1K
NFS daemon 28 4K 4K 19661K 28 0 0 64,256,512
NFS srvsock 2 1K 1K 19661K 2 0 0 256
NFS node 1344 368K 577K 19661K 4292 0 0 256,32K
MSDOSFS mount 1 16K 16K 19661K 1 0 0 16K
vnodes 14632 3359K 3359K 19661K 63058667 0 0 16,32,256
namecache 12473 844K 888K 19661K 114719 0 0 64,128,256,64K
ZONE 7 1K 1K 19661K 7 0 0 128
cred 75 10K 13K 19661K 63044977 0 0 128
proc 101 54K 76K 19661K 20785 0 0 16,512,2K,8K
ifaddr 8 1K 1K 19661K 8 0 0 64,128
ttys 403 55K 74K 19661K 4264 0 0 128,2K
devbuf 50 137K 137K 19661K 63 0 0 16,32,64,256,512,1K,2K,4K,16K
mbuf 1 16K 16K 19661K 1 0 0 16K
temp 198 42K 43K 19661K 6449 0 0 16,32,128,256,512,1K,4K
kld 1 1K 1K 19661K 1 0 0 32
Memory Totals: In Use Free Requests
8411K 350K 443853331
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