Event 2019: The server was unable to allocate from the system nonpaged pool because the pool was empty
hi guys,
i've been trying solve issue customer long time now, problem it's intermittent may go month or more before issues. server becomes more or less unresponsive (can still rdp it, won't provide user services dns/ad etc.) , starts logging 2019 event below -
event type: error event source: srv event category: none event id: 2019 date: 24/09/2010 time: 10:44:03 user: n/a computer: ntserver01 description: server unable allocate system nonpaged pool because pool empty. more information, see , support center @ http://go.microsoft.com/fwlink/events.asp.
server windows sbs 2003 on hp dl380 updates applied. sophos antivirus, not else installed. may important intalled seperate server exchange 2007 exchange org, migrated mailboxes etc. disabled exchange services on sbs server.
issue happened again morning logged on , saw top "np pool" consumer dns.exe @ 700k, i restarted dns server service , server went running normally. note once dns service restarted consuming 5000k of np pool. doubt dns.exe problem here, suspect restarting freed enough np pool things start running again. server still in state, running fine users on verge of going down again.
from task manager, dns.exe consuming 5000k of np pool, next lsass.exe @ 182k rest less 100k. note inetinfo.exe has 510000 handles, seems excessive? next biggest lsass.exe 19000 handles. see inetinfo.exe has 4000k of paged pool while the next dns.exe 800k various other services 300k or less.
below poolmon server currently. note after restarted dns.exe server is functioning @ point.
tag type allocs frees diff bytes per alloc
thre nonp 9500893 ( 3) 9228029 ( 5) 272864 170267136 ( -1248) 624
time nonp 498966 ( 0) 244249 ( 0) 254717 46867976 ( 0) 184
irp nonp 10454050 ( 173) 10440924 ( 84) 13126 5819448 ( 59096) 443
mdl nonp 13346386 ( 8) 13314772 ( 21) 31614 4050840 ( -1664) 128
lswi nonp 1 ( 0) 0 ( 0) 1 2576384 ( 0) 2576384
file nonp 243870397 (1034) 243856192 ( 915) 14205 2175432 ( 18088) 153
vosm nonp 28535 ( 0) 28501 ( 0) 34 2064672 ( 0) 60725
mmcm nonp 29 ( 0) 3 ( 0) 26 1712672 ( 0) 65872
tcpt nonp 6120280 ( 0) 6120246 ( 0) 34 1458768 ( 0) 42904
tpla nonp 256 ( 0) 0 ( 0) 256 1048576 ( 0) 4096
tcpa nonp 7874940 ( 4) 7872333 ( 5) 2607 959376 ( -368) 368
afde nonp 52108726 ( 6) 52105751 ( 7) 2975 833000 ( -280) 280
pool nonp 6 ( 0) 3 ( 0) 3 610304 ( 0) 203434
devi nonp 96553 ( 0) 96097 ( 0) 456 558352 ( 0) 1224
ulco nonp 3392 ( 0) 2559 ( 0) 833 506464 ( 0) 608
ccsc nonp 11365692 ( 15) 11364308 ( 15) 1384 442880 ( 0) 320
nonp 167545334 ( 53) 167536359 ( 99) 8975 435616 ( -2624) 48
lswr nonp 128 ( 0) 0 ( 0) 128 416768 ( 0) 3256
lsrf nonp 2140496 ( 121) 2138919 ( 0) 1577 391096 ( 30008) 248
ntfr nonp 988808 ( 0) 983752 ( 0) 5056 324552 ( 0) 64
vad nonp 75198269 ( 21) 75191670 ( 69) 6599 316752 ( -2304) 48
mm nonp 20964 ( 0) 20945 ( 0) 19 292736 ( 0) 15407
hi guys,
i've been trying solve issue customer long time now, problem it's intermittent may go month or more before issues. server becomes more or less unresponsive (can still rdp it, won't provide user services dns/ad etc.) , starts logging 2019 event below -
[cut]
take @ possible solutions
http://www.eventid.net/display.asp?eventid=2019&eventno=661&source=srv&phase=1
hth
edoardo benussi - microsoft® mvp
management infrastructure - systems administration
https://mvp.support.microsoft.com/profile/benussi
windows server italian forum moderator
edo[at]mvps[dot]org
Windows Server > Windows Server General Forum
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