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Re: kern/54818: 9.0_RC1 pagedaemon spins
The following reply was made to PR kern/54818; it has been noted by GNATS.
From: Havard Eidnes <he%uninett.no@localhost>
To: lars%paradoxon.info@localhost
Cc: gnats-bugs%netbsd.org@localhost, ad%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
netbsd-bugs%netbsd.org@localhost, tsutsui%ceres.dti.ne.jp@localhost
Subject: Re: kern/54818: 9.0_RC1 pagedaemon spins
Date: Thu, 05 Mar 2020 23:45:39 +0100 (CET)
Oh, BTW, I also appear to have this problem on my old Lenovo T60
laptop, which runs 8.1/i386 and has 3070MB usable physical memory, and
it's apparently easier to get this one to trigger.
I'm assuming it's the same issue. I've not dragged over the diffs to
this host (yet).
Anything more relevant to collect?
NetBSD 8.1 (GENERIC) #4: Fri May 31 19:20:18 CEST 2019
he%jonsvatnet.uninett.no@localhost:/usr/obj/sys/arch/i386/compile/GENERIC
total memory = 3070 MB
avail memory = 3000 MB
...
cpu0 at mainbus0 apid 0
cpu0: Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz, id 0x6f6
cpu0: package 0, core 0, smt 0
cpu1 at mainbus0 apid 1
cpu1: Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz, id 0x6f6
cpu1: package 0, core 1, smt 0
load averages: 1.37, 1.39, 1.85; up 12+06:27:51 22:12:34
189 threads: 10 idle, 3 runnable, 171 sleeping, 3 zombie, 2 on CPU
CPU states: 0.3% user, 0.0% nice, 50.7% system, 0.2% interrupt, 48.8% idle
Memory: 1603M Act, 822M Inact, 2232K Wired, 330M Exec, 1274M File, 46M Free
Swap: 2048M Total, 168M Used, 1881M Free
PID LID USERNAME PRI STATE TIME WCPU CPU NAME COMMAND
0 69 root 126 CPU/0 32.0H 99.02% 99.02% pgdaemon [system]
0 70 root 124 syncer/1 68:45 0.00% 0.00% ioflush [system]
6010 1 he 85 select/1 63:10 0.00% 0.00% - firefox
935 1 he 85 select/1 27:15 0.00% 0.00% - Xorg
"pmap 0" shows (first few lines):
C0000000 72416K read/write/exec [ anon ]
C46B8000 368640K read/write/exec [ anon ]
DAEB8000 16384K read/write/exec [ pager_map ]
DBEB8000 136K read/write [ anon ]
DBEDA000 1200K read/write/exec [ phys_map ]
# vmstat -s
4096 bytes per page
64 page colors
768257 pages managed
11263 pages free
410923 pages active
210357 pages inactive
0 pages paging
564 pages wired
7893 zero pages
1 reserve pagedaemon pages
10 reserve kernel pages
211102 anonymous pages
326183 cached file pages
84559 cached executable pages
512 minimum free pages
682 target free pages
256085 maximum wired pages
1 swap devices
...
5255 times daemon wokeup
14374 revolutions of the clock hand
12168425 pages freed by daemon
21614865 pages scanned by daemon
373482 anonymous pages scanned by daemon
11794943 object pages scanned by daemon
2944803 pages reactivated
0 pages found busy by daemon
349016 total pending pageouts
21923470 pages deactivated
...
# vmstat -s
4096 bytes per page
64 page colors
768257 pages managed
11049 pages free
411160 pages active
210352 pages inactive
0 pages paging
558 pages wired
7893 zero pages
1 reserve pagedaemon pages
10 reserve kernel pages
211328 anonymous pages
326219 cached file pages
84523 cached executable pages
512 minimum free pages
682 target free pages
256085 maximum wired pages
1 swap devices
...
5255 times daemon wokeup
14374 revolutions of the clock hand
12168425 pages freed by daemon
21614865 pages scanned by daemon
373482 anonymous pages scanned by daemon
11794943 object pages scanned by daemon
2944803 pages reactivated
0 pages found busy by daemon
349016 total pending pageouts
21923470 pages deactivated
...
# vmstat -m
Memory resource pool statistics
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
amappl 48 85115 0 80705 157 28 129 157 0 inf 0
anonpl 16 1615944 0 1371415 2401 981 1420 2358 0 inf 0
ataspl 56 11316431 0 11316431 2437 2436 1 1 0 inf 1
biopl 180 12405 0 12405 816 816 0 27 0 inf 0
buf16k 16384 539666 0 532479 38906 37109 1797 2924 1 1 0
buf1k 1024 21200 0 20325 312 298 14 14 1 1 0
buf2k 2048 1228730 0 1184215 21613 20140 1473 1582 1 1 0
buf4k 4096 22608 0 22290 439 416 23 25 1 1 0
buf64k 65536 8 0 0 9 0 9 9 1 1 1
buf8k 8192 14451 0 14182 756 720 36 41 1 1 0
bufpl 180 164745 0 111573 2558 14 2544 2558 0 inf 0
cwdi 64 2330 0 2265 2 0 2 2 0 inf 0
ehcixfer 204 5 0 4 1 0 1 1 0 inf 0
execargs 262144 254658 0 254658 492 491 1 3 0 16 1
extent 20 126 0 120 1 0 1 1 0 inf 0
fcrpl 104 12 0 11 2 0 2 2 2 inf 1
fdfile 64 14765 0 13783 25 3 22 23 0 inf 0
ffsdino1 128 1480577 0 1378332 3717 104 3613 3716 0 inf 0
ffsino 180 1515152 0 1412907 5242 169 5073 5235 0 inf 0
file 64 15963 0 15471 13 0 13 13 0 inf 0
filedesc 704 2310 0 2245 35 17 18 21 0 inf 0
icmp 16 149635 0 149635 1859 1859 0 1 0 inf 0
icmp6 16 47634 0 47634 2385 2385 0 1 0 inf 0
in6pcbpl 176 42267 0 42257 12 11 1 3 0 inf 0
inmltpl 32 4 0 2 1 0 1 1 0 inf 0
inpcbpl 140 154708 0 154690 12 11 1 6 0 inf 0
ipfrenpl 64 71 0 71 30 30 0 1 0 inf 0
kcpuset 64 4316 0 4154 4 0 4 4 0 inf 0
kcredpl 192 7592 0 7325 23 6 17 20 0 inf 0
kmem-1024 1024 32123 0 28877 2691 1864 827 1864 0 inf 0
kmem-112 112 15593 0 15435 8 2 6 7 0 inf 0
kmem-128 128 13084 0 12476 38 18 20 37 0 inf 0
kmem-16 16 79743 0 78083 13 0 13 13 0 inf 0
kmem-160 160 11499 0 11059 27 8 19 21 0 inf 0
kmem-192 192 6444 0 6288 15 6 9 12 0 inf 0
kmem-2048 2048 11150 0 11051 711 660 51 70 0 inf 0
kmem-224 224 3935 0 3860 14 7 7 7 0 inf 0
kmem-24 24 265875 0 263425 148 111 37 56 0 inf 0
kmem-256 256 14346 0 13887 47 14 33 45 0 inf 0
kmem-32 32 101314 0 98408 107 70 37 42 0 inf 0
kmem-320 320 14197 0 14080 19 6 13 18 0 inf 0
kmem-384 384 4007 0 3835 38 19 19 27 0 inf 0
kmem-40 40 405967 0 401765 190 112 78 89 0 inf 0
kmem-4096 4096 81574 0 81432 11262 11120 142 330 0 inf 0
kmem-448 448 2992 0 2914 21 10 11 15 0 inf 0
kmem-48 48 8778 0 6050 36 3 33 34 0 inf 0
kmem-512 512 12862 0 12786 23 10 13 18 0 inf 0
kmem-56 56 49170 0 48684 29 20 9 19 0 inf 0
kmem-64 64 24694 0 22986 81 39 42 81 0 inf 0
kmem-768 768 56667 0 56196 412 295 117 278 0 inf 0
kmem-8 8 330457 0 323799 69 11 58 68 0 inf 0
kmem-80 80 95736 0 94743 64 30 34 56 0 inf 0
kmem-96 96 43696 0 41730 81 31 50 69 0 inf 0
ksiginfo 48 1913 0 1911 1 0 1 1 0 inf 0
kva-12288 12288 10333 0 10322 16 15 1 2 0 inf 0
kva-16384 16384 9358 0 9355 13 12 1 3 0 inf 0
kva-20480 20480 4 0 3 1 0 1 1 0 inf 0
kva-24576 24576 4 0 0 1 0 1 1 0 inf 0
kva-32768 32768 18 0 14 1 0 1 1 0 inf 0
kva-4096 4096 60886 0 33977 467 14 453 465 0 inf 0
kva-49152 49152 1 0 0 1 0 1 1 0 inf 0
kva-65536 65536 3265 0 77 804 6 798 798 0 inf 0
kva-8192 8192 5967 0 5956 12 11 1 2 0 inf 0
llentrypl 168 214 0 192 1 0 1 1 0 inf 0
lockf 64 2783 0 2765 1 0 1 1 0 inf 0
lwppl 672 3098 0 2907 54 19 35 43 0 inf 0
mbpl 256 203243 0 202857 73 43 30 34 1 inf 0
mclpl 2048 98622 0 98621 10173 10168 5 65 4 16384 4
mutex 64 1668843 0 1561445 1928 29 1899 1928 0 inf 0
ncache 128 1561202 0 1456515 3585 17 3568 3569 0 inf 0
pcache 576 91 0 4 13 0 13 13 0 inf 0
pcachecpu 64 95 0 0 2 0 2 2 0 inf 0
pcglarge 512 42741 0 42740 5848 5847 1 1133 0 inf 0
pcgnormal 128 1486090 0 1486046 8524 8522 2 516 0 inf 0
pdict16 44 264 0 206 1 0 1 1 0 inf 0
pdict32 60 18 0 5 1 0 1 1 0 inf 0
pdppl 4096 2517 0 2452 1762 1697 65 105 0 inf 0
phpool-0 32 96617 0 91747 57 6 51 57 0 inf 0
phpool-128 44 362 0 205 2 0 2 2 0 inf 0
phpool-256 60 161 0 111 2 1 1 2 0 inf 0
phpool-512 92 69 0 11 2 0 2 2 0 inf 0
phpool-64 36 4189 0 2739 14 0 14 14 0 inf 0
piperd 192 1325 0 1297 8 5 3 3 0 inf 0
pipewr 192 1299 0 1273 3 0 3 3 0 inf 0
plimitpl 216 210 0 196 4 3 1 2 0 inf 0
pmappl 120 2281 0 2216 11 8 3 4 0 inf 0
pnbufpl 1024 39603 0 39597 1151 1149 2 10 0 inf 0
procpl 484 2184 0 2119 17 6 11 13 0 inf 0
proparay 32 111 0 0 1 0 1 1 0 inf 0
propdict 32 435 0 102 3 0 3 3 0 inf 0
propnmbr 32 665139 0 665095 1 0 1 1 0 inf 0
propstng 20 831 0 221 4 0 4 4 0 inf 0
pstatspl 268 2175 0 2110 10 4 6 7 0 inf 0
ptimerpl 164 299 0 282 1 0 1 1 0 inf 0
ptimerspl 152 299 0 282 1 0 1 1 0 inf 0
pvpl 20 518678 0 479543 285 8 277 285 0 inf 0
ractx 24 546362 0 502084 718 356 362 434 0 inf 0
rndctx 8 42 0 41 1 0 1 1 0 inf 0
rndsample 528 1199 0 1178 17 12 5 8 0 586 0
rndtemp 512 40 0 40 21 21 0 1 0 inf 0
rtentpl 208 132 0 103 2 0 2 2 0 inf 0
rwlock 64 4 0 1 1 0 1 1 0 inf 0
sigacts 2056 2250 0 2185 1769 1704 65 104 0 inf 0
socket 336 6649 0 6450 40 15 25 32 0 inf 0
tcpcbpl 528 45020 0 45003 86 83 3 26 0 inf 0
tcpipqepl 44 8142 0 8142 177 177 0 1 0 inf 0
tmpfs_dirent 24 92621 0 92621 58 58 0 1 0 inf 0
tmpfs_node 140 92622 0 92604 45 42 3 6 0 inf 0
tstilepl 52 2992 0 2801 4 0 4 4 0 inf 0
uaoeltpl 84 99 0 87 2 0 2 2 0 inf 0
uarea 8192 3064 0 2873 2381 2190 191 257 0 inf 0
ufsdir 264 663 0 663 388 388 0 1 0 inf 0
uhcixfer 208 2 0 1 1 0 1 1 0 inf 0
uhcixfer 208 3 0 2 1 0 1 1 0 inf 0
uhcixfer 208 4 0 3 1 0 1 1 0 inf 0
uhcixfer 208 3 0 2 1 0 1 1 0 inf 0
vcachepl 196 1532480 0 1430187 5784 225 5559 5761 0 inf 0
vmembt 28 25565 0 20827 60 0 60 60 0 inf 0
vmmpepl 88 190987 0 183462 525 136 389 512 0 inf 0
vmsppl 212 2264 0 2199 11 6 5 6 0 inf 0
wapbldealloc 20 27902 0 27902 256 256 0 1 0 inf 0
wapblentrypl 20 114424 0 114424 2384 2384 0 1 0 inf 0
wapblinopl 20 424009 0 424009 479 479 0 1 0 inf 0
Totals 30016712 0 28972843150477118632 31845
In use 303551K, total allocated 334304K; utilization 90.8%
#
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