The original post: /r/pihole by /u/lonecow on 2024-11-07 13:12:29.
Ive been having a memory leak of some sorts in dhcpcd. I was wondering if anyone else has seen something Similar.
It happens when I keep a ssh connection open over time.
I added a gig of memory to the swap file, but that only extended Out of Memory error from a couple days to a month.
[1443083.606896] lowmem_reserve[]: 0 0 0 0
[1443083.606928] DMA: 641*4kB (UMEHC) 360*8kB (UMEHC) 251*16kB (UMEH) 117*32kB (UMEH) 56*64kB (UMEH) 20*128kB (UMEH) 6*256kB (UH) 1*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 21396kB
[1443083.607052] HighMem: 260*4kB (UM) 40*8kB (UM) 11*16kB (U) 4*32kB (U) 6*64kB (U) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2048kB
[1443083.607150] 1558 total pagecache pages
[1443083.607158] 106 pages in swap cache
[1443083.607165] Swap cache stats: add 267649, delete 267542, find 1206769768/1206772230
[1443083.607171] Free swap = 0kB
[1443083.607177] Total swap = 1048572kB
[1443083.607183] 242688 pages RAM
[1443083.607189] 46080 pages HighMem/MovableOnly
[1443083.607195] 6739 pages reserved
[1443083.607200] 65536 pages cma reserved
[1443083.607206] Tasks state (memory values in pages):
[1443083.607212] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
[1443083.607228] [ 160] 0 160 12873 8175 106496 243 -1000 systemd-udevd
[1443083.607239] [ 361] 108 361 1730 49 40960 65 0 avahi-daemon
[1443083.607247] [ 362] 0 362 2050 19 36864 34 0 cron
[1443083.607255] [ 363] 104 363 2216 373 45056 47 -900 dbus-daemon
[1443083.607263] [ 364] 108 364 1689 8 36864 58 0 avahi-daemon
[1443083.607271] [ 372] 0 372 9890 104 69632 79 0 polkitd
[1443083.607279] [ 377] 112 377 232749 4153 233472 43 0 prometheus-node
[1443083.607287] [ 383] 112 383 349167 15165 528384 393 0 prometheus
[1443083.607294] [ 418] 0 418 6636 282 57344 54 0 rsyslogd
[1443083.607302] [ 423] 0 423 2273 37 40960 129 0 smartd
[1443083.607309] [ 430] 0 430 3264 95 53248 70 0 systemd-logind
[1443083.607317] [ 439] 65534 439 1328 4 32768 43 0 thd
[1443083.607325] [ 444] 0 444 2947 14 45056 90 0 wpa_supplicant
[1443083.607333] [ 468] 0 468 14453 147 90112 189 0 ModemManager
[1443083.607341] [ 473] 111 473 265637 10431 544768 549 0 influxd
[1443083.607349] [ 477] 0 477 6924 25 40960 10 0 rngd
[1443083.607357] [ 495] 110 495 10085 189 65536 213 0 redis-server
[1443083.607365] [ 556] 0 556 3102 21 45056 148 -1000 sshd
[1443083.607373] [ 583] 109 583 3425 39 49152 49 0 dnsmasq
[1443083.607381] [ 597] 0 597 2980 29 45056 100 0 wpa_supplicant
[1443083.607388] [ 668] 0 668 1860 72 36864 50 0 hostapd
[1443083.607396] [ 678] 0 678 514 1 24576 28 0 hciattach
[1443083.607404] [ 692] 0 692 5364 0 65536 213 0 bluetoothd
[1443083.607412] [ 780] 0 780 405701 153395 3272704 251693 0 dhcpcd
[1443083.607419] [ 781] 113 781 209514 5874 446464 984 0 grafana
[1443083.607427] [ 794] 0 794 1121 0 36864 26 0 agetty
[1443083.607434] [ 795] 1000 795 1942 0 36864 43 0 bash
[1443083.607442] [ 796] 0 796 1942 0 40960 43 0 bash
[1443083.607450] [ 799] 0 799 1942 1 40960 43 0 bash
[1443083.607457] [ 802] 1000 802 1942 23 40960 18 0 bash
[1443083.607465] [ 804] 1000 804 1942 23 40960 18 0 bash
[1443083.607472] [ 805] 0 805 7565 479 77824 1059 0 python
[1443083.607480] [ 807] 0 807 8846 808 81920 1677 0 rq
[1443083.607488] [ 808] 1000 808 14867 629 106496 3444 0 flask
[1443083.607496] [ 19103] 0 19103 5002 328 40960 250 0 systemd-udevd
[1443083.607504] [ 12782] 1000 12782 440 13 20480 0 0 sshpass
[1443083.607512] [ 12784] 1000 12784 3427 413 49152 0 0 ssh
[1443083.607519] [ 20060] 1000 20060 440 13 28672 0 0 sshpass
[1443083.607527] [ 20063] 1000 20063 3162 125 49152 0 0 ssh
[1443083.607534] [ 25071] 103 25071 5572 137 57344 0 0 systemd-timesyn
[1443083.607543] [ 21468] 0 21468 1975 37 40960 0 0 bash
[1443083.607550] [ 21474] 0 21474 1975 37 36864 0 0 apt.sh
[1443083.607558] [ 21475] 0 21475 472 13 28672 0 0 sponge
[1443083.607566] [ 21477] 0 21477 1975 44 36864 0 0 apt.sh
[1443083.607574] [ 21478] 0 21478 15876 3736 151552 0 0 apt-get
[1443083.607581] [ 21479] 0 21479 1768 26 40960 0 0 awk
[1443083.607589] [ 21480] 0 21480 3251 15 45056 0 0 sort
[1443083.607596] [ 21481] 0 21481 1624 13 40960 0 0 uniq
[1443083.607604] [ 21482] 0 21482 1768 15 36864 0 0 awk
[1443083.607613] [ 11581] 0 11581 7311 198 57344 0 -250 systemd-journal
[1443083.607622] [ 13136] 0 13136 1064 102 32768 0 0 easytether-usb
[1443083.607630] [ 13137] 0 13137 1139 89 28672 0 0 modprobe
[1443083.607638] [ 13138] 0 13138 12873 8175 106496 242 -1000 systemd-udevd
[1443083.607646] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=dhcpcd,pid=780,uid=0
[1443083.607703] Out of memory: Killed process 780 (dhcpcd) total-vm:1622804kB, anon-rss:613580kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:3196kB oom_score_adj:0
[1443084.580094] oom_reaper: reaped process 780 (dhcpcd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
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