Discussion:
get_swap_pager(x) failed
(too old to reply)
blubee blubeeme
2017-12-12 07:34:40 UTC
Permalink
I am seeing tons of these messages while running tail -f /var/log/messages
============
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(25): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(22): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(11): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(32): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(25): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(8): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(6): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(32): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(21): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(19): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(32): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
==========

running top and sorting by size I have this output:
===========
last pid: 15976; load averages: 0.62, 0.92, 0.94


up 1+03:41:32 15:31:28
119 processes: 1 running, 117 sleeping, 1 stopped
CPU: 1.5% user, 1.8% nice, 1.5% system, 0.4% interrupt, 94.8% idle
Mem: 3442M Active, 293M Inact, 4901M Laundry, 22G Wired, 1057M Free
ARC: 18G Total, 1488M MFU, 15G MRU, 4003K Anon, 178M Header, 1171M Other
16G Compressed, 23G Uncompressed, 1.41:1 Ratio
Swap: 2048M Total, 2028M Used, 20M Free, 99% Inuse, 36K In

PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU
COMMAND
1118 blubee 1 20 0 24756M 102M select 3 122:30 2.62% Xorg
15960 blubee 1 20 0 22693M 248M select 0 0:01 0.65% urxvt
2369 blubee 1 20 0 11411M 10152K select 5 0:02 0.00% urxvt
13251 blubee 1 20 0 11405M 245M select 0 0:03 0.00% urxvt
1545 blubee 1 20 0 11405M 244M select 3 0:03 0.00% urxvt
4182 blubee 1 20 0 11405M 248M select 1 0:12 0.00% urxvt
3826 blubee 1 20 0 11405M 246M select 6 0:03 0.00% urxvt
1165 blubee 1 20 0 11401M 15244K select 1 0:03 0.00% urxvt
15316 blubee 63 20 0 2067M 630M select 5 15:39 0.02%
firefox
1419 blubee 18 20 0 1989M 263M uwait 4 5:29 0.00% chrome
15392 blubee 37 20 0 1934M 572M select 7 7:47 1.41%
firefox
15320 blubee 40 20 0 1829M 440M select 6 3:30 0.00%
firefox
15323 blubee 37 20 0 1797M 418M select 7 1:05 0.02%
firefox
1543 blubee 17 25 5 1695M 794M uwait 1 38:13 0.93% chrome
1370 blubee 6 23 0 1482M 982M select 6 57:09 7.78% chrome
1368 blubee 30 22 0 1307M 468M select 4 78:18 7.79% chrome
2338 blubee 14 20 0 1137M 334M uwait 3 10:38 0.52% chrome
2481 blubee 21 26 5 1090M 345M uwait 6 7:14 16.00% chrome
3646 blubee 13 25 5 889M 294M uwait 2 0:20 0.00% chrome
2679 blubee 13 25 5 840M 268M uwait 4 9:24 1.30% chrome
2707 blubee 14 25 5 835M 127M uwait 2 3:07 0.02% chrome
3661 blubee 13 25 5 796M 244M uwait 7 0:20 0.06% chrome
2755 blubee 14 25 5 770M 84492K uwait 0 0:39 0.02% chrome
1661 blubee 15 20 0 766M 166M uwait 5 1:06 0.00% chrome
1418 blubee 13 20 0 753M 147M uwait 5 1:24 0.00% chrome
3850 blubee 13 25 5 747M 176M uwait 5 1:58 0.05% chrome
13392 blubee 13 25 5 746M 161M uwait 1 0:30 0.00% chrome
13329 blubee 13 25 5 741M 146M uwait 0 0:18 0.00% chrome
2352 blubee 13 25 5 727M 98888K uwait 0 2:34 0.00% chrome
13389 blubee 13 25 5 726M 169M uwait 1 0:10 0.00% chrome
3600 blubee 14 25 5 713M 124M uwait 0 0:22 0.00% chrome
1415 blubee 12 20 0 704M 127M uwait 2 0:17 0.01% chrome
13346 blubee 13 25 5 688M 123M uwait 4 0:06 0.00% chrome
13368 blubee 13 25 5 686M 142M uwait 7 0:09 0.00% chrome
15394 blubee 13 25 5 685M 161M uwait 7 0:44 0.00% chrome
2501 blubee 13 25 5 684M 83776K uwait 3 0:11 0.00% chrome
1662 blubee 13 20 0 684M 128M uwait 5 0:31 0.01% chrome
3586 blubee 13 25 5 677M 89896K uwait 5 0:21 0.01% chrome
13327 blubee 13 25 5 673M 129M uwait 4 0:05 0.00% chrome
3961 blubee 13 25 5 670M 118M uwait 1 0:05 0.00% chrome
15956 blubee 13 20 0 670M 169M uwait 6 0:03 0.00% chrome
13359 blubee 13 25 5 667M 129M uwait 7 0:14 0.01% chrome
13274 blubee 13 25 5 663M 118M uwait 5 0:11 0.00% chrome
3848 blubee 13 25 5 662M 115M uwait 6 0:03 0.00% chrome
4166 blubee 13 25 5 661M 118M uwait 7 0:18 0.00% chrome
1673 blubee 13 25 5 659M 128M uwait 1 17:48 1.19% chrome
13387 blubee 12 25 5 658M 123M uwait 1 0:08 0.00% chrome
1417 blubee 14 20 0 658M 107M uwait 0 0:15 0.01% chrome
1416 blubee 13 20 0 642M 106M uwait 4 0:12 0.00% chrome
3587 blubee 13 25 5 642M 93292K uwait 3 0:12 0.00% chrome
13364 blubee 13 25 5 626M 96468K uwait 7 0:02 0.00% chrome
3851 blubee 13 25 5 625M 94508K uwait 4 0:01 0.00% chrome
13540 blubee 12 25 5 618M 94384K uwait 3 0:03 0.00% chrome
1231 blubee 12 20 0 576M 44900K uwait 7 0:01 0.00% chrome
1159 blubee 5 20 0 149M 56876K select 6 1:05 0.00%
ibus-engine-chewing

===========

What's with all the swap errors? I am running ZFS and I have 16GB of ram,
how could I be having swap space errors?
blubee blubeeme
2017-12-12 15:58:17 UTC
Permalink
Post by blubee blubeeme
I am seeing tons of these messages while running tail -f /var/log/messages
============
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(25): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(22): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(11): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(32): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(25): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(8): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(6): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(32): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(21): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(19): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(32): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(18): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(9): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(3): failed
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(20): failed
==========
===========
last pid: 15976; load averages: 0.62, 0.92, 0.94
up 1+03:41:32 15:31:28
119 processes: 1 running, 117 sleeping, 1 stopped
CPU: 1.5% user, 1.8% nice, 1.5% system, 0.4% interrupt, 94.8% idle
Mem: 3442M Active, 293M Inact, 4901M Laundry, 22G Wired, 1057M Free
ARC: 18G Total, 1488M MFU, 15G MRU, 4003K Anon, 178M Header, 1171M Other
16G Compressed, 23G Uncompressed, 1.41:1 Ratio
Swap: 2048M Total, 2028M Used, 20M Free, 99% Inuse, 36K In
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU
COMMAND
1118 blubee 1 20 0 24756M 102M select 3 122:30 2.62% Xorg
15960 blubee 1 20 0 22693M 248M select 0 0:01 0.65% urxvt
2369 blubee 1 20 0 11411M 10152K select 5 0:02 0.00% urxvt
13251 blubee 1 20 0 11405M 245M select 0 0:03 0.00% urxvt
1545 blubee 1 20 0 11405M 244M select 3 0:03 0.00% urxvt
4182 blubee 1 20 0 11405M 248M select 1 0:12 0.00% urxvt
3826 blubee 1 20 0 11405M 246M select 6 0:03 0.00% urxvt
1165 blubee 1 20 0 11401M 15244K select 1 0:03 0.00% urxvt
15316 blubee 63 20 0 2067M 630M select 5 15:39 0.02%
firefox
1419 blubee 18 20 0 1989M 263M uwait 4 5:29 0.00% chrome
15392 blubee 37 20 0 1934M 572M select 7 7:47 1.41%
firefox
15320 blubee 40 20 0 1829M 440M select 6 3:30 0.00%
firefox
15323 blubee 37 20 0 1797M 418M select 7 1:05 0.02%
firefox
1543 blubee 17 25 5 1695M 794M uwait 1 38:13 0.93% chrome
1370 blubee 6 23 0 1482M 982M select 6 57:09 7.78% chrome
1368 blubee 30 22 0 1307M 468M select 4 78:18 7.79% chrome
2338 blubee 14 20 0 1137M 334M uwait 3 10:38 0.52% chrome
2481 blubee 21 26 5 1090M 345M uwait 6 7:14 16.00% chrome
3646 blubee 13 25 5 889M 294M uwait 2 0:20 0.00% chrome
2679 blubee 13 25 5 840M 268M uwait 4 9:24 1.30% chrome
2707 blubee 14 25 5 835M 127M uwait 2 3:07 0.02% chrome
3661 blubee 13 25 5 796M 244M uwait 7 0:20 0.06% chrome
2755 blubee 14 25 5 770M 84492K uwait 0 0:39 0.02% chrome
1661 blubee 15 20 0 766M 166M uwait 5 1:06 0.00% chrome
1418 blubee 13 20 0 753M 147M uwait 5 1:24 0.00% chrome
3850 blubee 13 25 5 747M 176M uwait 5 1:58 0.05% chrome
13392 blubee 13 25 5 746M 161M uwait 1 0:30 0.00% chrome
13329 blubee 13 25 5 741M 146M uwait 0 0:18 0.00% chrome
2352 blubee 13 25 5 727M 98888K uwait 0 2:34 0.00% chrome
13389 blubee 13 25 5 726M 169M uwait 1 0:10 0.00% chrome
3600 blubee 14 25 5 713M 124M uwait 0 0:22 0.00% chrome
1415 blubee 12 20 0 704M 127M uwait 2 0:17 0.01% chrome
13346 blubee 13 25 5 688M 123M uwait 4 0:06 0.00% chrome
13368 blubee 13 25 5 686M 142M uwait 7 0:09 0.00% chrome
15394 blubee 13 25 5 685M 161M uwait 7 0:44 0.00% chrome
2501 blubee 13 25 5 684M 83776K uwait 3 0:11 0.00% chrome
1662 blubee 13 20 0 684M 128M uwait 5 0:31 0.01% chrome
3586 blubee 13 25 5 677M 89896K uwait 5 0:21 0.01% chrome
13327 blubee 13 25 5 673M 129M uwait 4 0:05 0.00% chrome
3961 blubee 13 25 5 670M 118M uwait 1 0:05 0.00% chrome
15956 blubee 13 20 0 670M 169M uwait 6 0:03 0.00% chrome
13359 blubee 13 25 5 667M 129M uwait 7 0:14 0.01% chrome
13274 blubee 13 25 5 663M 118M uwait 5 0:11 0.00% chrome
3848 blubee 13 25 5 662M 115M uwait 6 0:03 0.00% chrome
4166 blubee 13 25 5 661M 118M uwait 7 0:18 0.00% chrome
1673 blubee 13 25 5 659M 128M uwait 1 17:48 1.19% chrome
13387 blubee 12 25 5 658M 123M uwait 1 0:08 0.00% chrome
1417 blubee 14 20 0 658M 107M uwait 0 0:15 0.01% chrome
1416 blubee 13 20 0 642M 106M uwait 4 0:12 0.00% chrome
3587 blubee 13 25 5 642M 93292K uwait 3 0:12 0.00% chrome
13364 blubee 13 25 5 626M 96468K uwait 7 0:02 0.00% chrome
3851 blubee 13 25 5 625M 94508K uwait 4 0:01 0.00% chrome
13540 blubee 12 25 5 618M 94384K uwait 3 0:03 0.00% chrome
1231 blubee 12 20 0 576M 44900K uwait 7 0:01 0.00% chrome
1159 blubee 5 20 0 149M 56876K select 6 1:05 0.00%
ibus-engine-chewing
===========
What's with all the swap errors? I am running ZFS and I have 16GB of ram,
how could I be having swap space errors?
Well I added 4GB of extra swap in /var/tmp/swap0
then added that to my /etc/fstab: md99 none swap
sw,file=/var/tmp/swap0,late 0 0

and those errors went away.
Mark Millard
2017-12-12 21:53:27 UTC
Permalink
blubee blubeeme gurenchan at gmail.com wrote on
On Tue, Dec 12, 2017 at 3:34 PM, blubee blubeeme <gurenchan at gmail.com
Post by blubee blubeeme
I am seeing tons of these messages while running tail -f /var/log/messages
============
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(25): failed
. . .
Post by blubee blubeeme
1159 blubee 5 20 0 149M 56876K select 6 1:05 0.00%
ibus-engine-chewing
===========
What's with all the swap errors? I am running ZFS and I have 16GB of ram,
how could I be having swap space errors?
Well I added 4GB of extra swap in /var/tmp/swap0
then added that to my /etc/fstab: md99 none swap
sw,file=/var/tmp/swap0,late 0 0
and those errors went away.
I recommend reviewing bugzilla 206048 (title in part
"swapfile usage hangs; swap partition works"):

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206048

before using file-system based swap spaces. They have
lots of problems with deadlocks. See especially comments
#7 and #8 quoting Konstantin Belousov. #8 is just a
reference to:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html

Comment #3 shows a way to test for the problematical
behavior.

Using swap partitions avoids the issue.

===
Mark Millard
markmi at dsl-only.net
Mark Millard
2017-12-13 03:58:07 UTC
Permalink
Post by Mark Millard
blubee blubeeme gurenchan at gmail.com wrote on
On Tue, Dec 12, 2017 at 3:34 PM, blubee blubeeme <gurenchan at gmail.com
Post by blubee blubeeme
I am seeing tons of these messages while running tail -f /var/log/messages
============
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(25): failed
. . .
Post by blubee blubeeme
1159 blubee 5 20 0 149M 56876K select 6 1:05 0.00%
ibus-engine-chewing
===========
What's with all the swap errors? I am running ZFS and I have 16GB of ram,
how could I be having swap space errors?
Well I added 4GB of extra swap in /var/tmp/swap0
then added that to my /etc/fstab: md99 none swap
sw,file=/var/tmp/swap0,late 0 0
and those errors went away.
I recommend reviewing bugzilla 206048 (title in part
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206048
before using file-system based swap spaces. They have
lots of problems with deadlocks. See especially comments
#7 and #8 quoting Konstantin Belousov. #8 is just a
https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html
Comment #3 shows a way to test for the problematical
behavior.
Using swap partitions avoids the issue.
Thanks for the info, why would I be getting swap errors like that when I have 32GB of ram?
sysctl hw.physmem
hw.physmem: 34253692928
That really doesn't make any sense to me... Is it Chromium eating up 32GB+ of ram?
I'm not familiar with the memory use of the software
that you use. But if swap space is put to use then
file-based swap space is a bad idea from what I
understand. Having no swap space configured is
allowed but may not be sufficient for your context.

In a separate shell window you could monitor what is
going on with something like:

top -Cawores

(You may want a large window.)

That will show something like following in an
updating display:

last pid: 49403; load averages: 0.13, 0.03, 0.01 up 3+19:28:56 19:33:58
43 processes: 1 running, 42 sleeping
CPU: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
Mem: 1808K Active, 98G Inact, 45M Laundry, 4912M Wired, 1544M Buf, 2462M Free
Swap: 15G Total, 15G Free

PID USERNAME THR PRI NICE SIZE RES SWAP STATE C TIME CPU COMMAND
625 root 1 20 0 55588K 15440K 0K select 15 0:01 0.00% /usr/sbin/mountd -r
627 root 1 52 0 54024K 14348K 0K select 27 0:00 0.00% nfsd: master (nfsd)
. . .

(Some of the detail above is tied to it being a UFS context
instead of a zfs context. There will be zfs information as well
if you are using zfs.)

The SIZE, RES, and SWAP for various processes will give a clue.
Avoid over interpreting: as I understand, these days swapped-out
really means the kernel-stacks for the process are not resident.
The activity is mostly paging activity otherwise. Top does not
track such detailed changes in how it presents information. RES
being zero might not mean what one might expect. Still, the
figures are useful for seeing what is using RAM and the
swapspace.

I'm not aware of a way to find the maximum swapspace in-use-so-far
figure or any estimate of it. Top will display an active in-use
figure if it is in use (not just Total and Free). Of source the
figure is based on periodic sampling. Top does not display the
maximum-observed-so-far of its periodic sampling.

===
Mark Millard
markmi at dsl-only.net
Gary Jennejohn
2017-12-13 07:42:42 UTC
Permalink
On Wed, 13 Dec 2017 10:34:02 +0800
Post by Mark Millard
blubee blubeeme gurenchan at gmail.com wrote on
On Tue, Dec 12, 2017 at 3:34 PM, blubee blubeeme <gurenchan at gmail.com
Post by blubee blubeeme
I am seeing tons of these messages while running tail -f
/var/log/messages
Post by blubee blubeeme
============
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(25): failed
. . .
Post by blubee blubeeme
1159 blubee 5 20 0 149M 56876K select 6 1:05 0.00%
ibus-engine-chewing
===========
What's with all the swap errors? I am running ZFS and I have 16GB of
ram,
Post by blubee blubeeme
how could I be having swap space errors?
Well I added 4GB of extra swap in /var/tmp/swap0
then added that to my /etc/fstab: md99 none swap
sw,file=/var/tmp/swap0,late 0 0
and those errors went away.
I recommend reviewing bugzilla 206048 (title in part
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206048
before using file-system based swap spaces. They have
lots of problems with deadlocks. See especially comments
#7 and #8 quoting Konstantin Belousov. #8 is just a
https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/
kerneldebug-deadlocks.html
Comment #3 shows a way to test for the problematical
behavior.
Using swap partitions avoids the issue.
===
Mark Millard
markmi at dsl-only.net
Thanks for the info, why would I be getting swap errors like that when I
have 32GB of ram?
sysctl hw.physmem
hw.physmem: 34253692928
That really doesn't make any sense to me... Is it Chromium eating up 32GB+
of ram?
I've asked myself that question also. alc@ gave me a hint.

Try this: sysctl vm.pageout_update_period=0

If it helps, put vm.pageout_update_period=0 into /etc/sysctl.conf.
--
Gary Jennejohn
Gary Palmer
2017-12-13 11:23:46 UTC
Permalink
Post by Mark Millard
blubee blubeeme gurenchan at gmail.com wrote on
On Tue, Dec 12, 2017 at 3:34 PM, blubee blubeeme <gurenchan at gmail.com
Post by blubee blubeeme
I am seeing tons of these messages while running tail -f
/var/log/messages
Post by blubee blubeeme
============
Dec 12 15:11:41 blubee kernel: swap_pager_getswapspace(25): failed
. . .
Post by blubee blubeeme
1159 blubee 5 20 0 149M 56876K select 6 1:05 0.00%
ibus-engine-chewing
===========
What's with all the swap errors? I am running ZFS and I have 16GB of
ram,
Post by blubee blubeeme
how could I be having swap space errors?
Well I added 4GB of extra swap in /var/tmp/swap0
then added that to my /etc/fstab: md99 none swap
sw,file=/var/tmp/swap0,late 0 0
and those errors went away.
I recommend reviewing bugzilla 206048 (title in part
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206048
before using file-system based swap spaces. They have
lots of problems with deadlocks. See especially comments
#7 and #8 quoting Konstantin Belousov. #8 is just a
https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/
kerneldebug-deadlocks.html
Comment #3 shows a way to test for the problematical
behavior.
Using swap partitions avoids the issue.
===
Mark Millard
markmi at dsl-only.net
Thanks for the info, why would I be getting swap errors like that when I
have 32GB of ram?
sysctl hw.physmem
hw.physmem: 34253692928
That really doesn't make any sense to me... Is it Chromium eating up 32GB+
of ram?
Your top output from the first message in the thread gives a hint:

Mem: 3442M Active, 293M Inact, 4901M Laundry, 22G Wired, 1057M Free
ARC: 18G Total, 1488M MFU, 15G MRU, 4003K Anon, 178M Header, 1171M Other
16G Compressed, 23G Uncompressed, 1.41:1 Ratio
Swap: 2048M Total, 2028M Used, 20M Free, 99% Inuse, 36K In

You have 22GB RAM used by the kernel, and 18GB of that is used by ZFS.
As you can see from the last line, 99% of your small swap space is used
and paging was happening at the time of the snapshot ("36K In").

First I would suggest limiting ARC and seeing if that helps. Unless you
are doing a lot of fileserver type work or working with lots of files
you want to keep around that ARC size is a bit big. My desktop with
32GB RAM has ARC limited to 4GB.

Definitely do NOT swap to a file on a filesystem, especially if the
filesystem is ZFS. That will eventually lead to a deadlock.

An open question would be why ARC is not reducing if the system is
under memory pressure. It's meant to, but there have been various
bugs in that implementation.

Regards,

Gary
Peter Jeremy
2017-12-14 05:43:20 UTC
Permalink
Post by Gary Palmer
An open question would be why ARC is not reducing if the system is
under memory pressure. It's meant to, but there have been various
bugs in that implementation.
The OP doesn't say what version of -current he is running but I would
point the finger at r325851. I have discovered that, in 11-stable,
r326619 (which is the MFC of r325851) stops ARC responding to memory
backpressure.
--
Peter Jeremy
blubee blubeeme
2017-12-14 05:48:46 UTC
Permalink
Post by Peter Jeremy
Post by Gary Palmer
An open question would be why ARC is not reducing if the system is
under memory pressure. It's meant to, but there have been various
bugs in that implementation.
The OP doesn't say what version of -current he is running but I would
point the finger at r325851. I have discovered that, in 11-stable,
r326619 (which is the MFC of r325851) stops ARC responding to memory
backpressure.
--
Peter Jeremy
I just did a new install world and kernel so I'm but this is uname -v
FreeBSD 12.0-CURRENT #0 r326839: Thu Dec 14 13:34:47 CST 2017
***@blubee:/usr/obj/usr/src/amd64.amd64/sys/OSS_GENERIC

The previous was with GENERIC kernel and maybe ports & src from two weeks
ago.
Mark Millard
2017-12-14 05:57:46 UTC
Permalink
Post by Peter Jeremy
Post by Gary Palmer
An open question would be why ARC is not reducing if the system is
under memory pressure. It's meant to, but there have been various
bugs in that implementation.
The OP doesn't say what version of -current he is running but I would
point the finger at r325851. I have discovered that, in 11-stable,
r326619 (which is the MFC of r325851) stops ARC responding to memory
backpressure.
See also https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224080
(bugzialla 224080 ) about problems with zfs from head -r326347 .

bugzilla 224330 is another -r326347 problem report (based on
some list reports) but that are for problems in some non-zfs
contexts.

===
Mark Millard
markmi at dsl-only.net

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