Active connections full 100% on WR-740N v4 with 18.06.8 and 19.07.4

sppmaster · September 19, 2020, 9:53pm

Hi.
I'm using a TP-Link router WR-740N v4. It is a main router that provides DHCP and DNS to a network with several computers, smart phones etc. I have a few other devices (Dumb APs on this network) and the router has three WLAN connections (one for administration purpose, one guest network with usually connected 1-5 smart phones and one WDS AP) .
I see very often that the Active Connections are full up to the 100%.
I'm using custom compiled firmware for over a month (tried both 18.06.8 with and without zram-swap and 19.07.4) with stripped IPv6 and PPP (I don't need them) minified LUA and added only DDNS.
How can I troubleshoot this considering that if there are over 1000 active connections I cannot use the real time graphs to view them. At the point where Active Connections are at the limit the router often becomes unresponsive. With 19.07.4 it simply reboots in just 15-30 minutes. With 18.06.8 (without zram-swap) the router still keeps up with this load and doesn't reboot but it is not a pleasure to enjoy.
After a several minutes the active connections drop to several hundred but most of the time they are between 1-4k and again going up to the 100%.

lleachii · September 19, 2020, 10:32pm

Do you have a lot of P2P running on your clients?

sppmaster · September 19, 2020, 11:09pm

Two computers have P2P programs running sometimes. I have set the Global maximum number of connections on both to 200 and limited the download and upload speeds to around 60-70% of the total throughput.
I have this setup running for over 2 years. But previously I've used the stock TP-Link firmwares on the main router (with WDS AP enabled) and the one that was WDS client. It was running fine but rarely the WDS connection was lost and I had to restart the WDS client router.
All others Dumb AP and WDS links on this network are running fine with OpenWRT for years.
I wanted more control over this network (DDNS too) because it grew slightly over the time and I thought OpenWRT was ideal for the task. I know that 4/32 devices are not recommended anymore but considering the stock firmware was able to support the network I didn't have any doubts OpenWRT could do it. This main router at the moment could not be changed with another device for various reasons.

A few minutes ago I saw the number of connections going from 2% up to 100% in just several seconds.
Then drifting around 98-100% for a few minutes and after that settle down to 10-30% for another couple of minutes.

openwrtforever · September 20, 2020, 5:01am

Disabling ipv6 is a bad idea

sppmaster · September 20, 2020, 7:41am

It is in the recommended measures to save space and others compiling their own firmware do it too. Why is it bad?
I can still try a firmware with IPv6.

sppmaster · September 21, 2020, 11:27am

Today after several minutes of connection monitoring I saw the active connections going form full (100%) to 1% in a minute.
Immediately after this I checked the system log.

740Nv1 log

There are lot's of this - ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.714149] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.718891] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.723698] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.728440] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.733215] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.738020] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.742763] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.747569] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.752311] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127719.757118] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.067451] warn_alloc: 416 callbacks suppressed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.067456] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.080007] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.086429] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.090412] Stack : 81327798 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.098830]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.107251]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.115669]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.124090]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.132511]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.135029] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.137421] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.140951] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.144498] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.148054] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.151637] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.155177] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.158761] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.162306] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.165851] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.169415] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.172995] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.178476] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.184226] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.189898] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.193456] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.197013] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.200575] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.204140] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.207704] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.211249]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.212807] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.215186] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.215186]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.215186]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.215186]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.215186]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.215186]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.247385] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.271267] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.302562] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.305951] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.317149] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.320888] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.324272] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.329562] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.332512] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.335465] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.338243] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.342149] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127720.345401] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.350155] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.358044] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.364464] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.368449] Stack : 81327858 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.376870]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.385290]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.393709]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.402129]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.410549]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.413068] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.415440] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.418991] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.422536] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.426094] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.429676] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.433216] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.436801] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.440346] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.443891] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.447454] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.451034] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.456515] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.462266] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.467937] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.471496] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.475053] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.478614] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.482180] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.485743] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.489290]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.490846] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.493224] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.493224]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.493224]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.493224]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.493224]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.493224]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.525423] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.549305] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.580602] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.583989] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.595187] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.598921] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.602311] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.607601] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.610552] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.613504] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.616281] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.620189] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127720.623450] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.628193] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.636084] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.642503] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.646489] Stack : 81327918 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.654910]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.663329]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.671749]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.680169]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.688588]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.691107] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.693480] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.697030] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.700576] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.704134] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.707715] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.711255] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.714838] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.718386] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.721931] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.725494] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.729074] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.734552] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.740306] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.745977] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.749535] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.753092] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.756652] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.760219] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.763782] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.767329]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.768886] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.771261] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.771261]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.771261]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.771261]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.771261]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.771261]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.803462] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.827345] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.858641] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.862029] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.873228] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.876962] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.880350] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.885640] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.888592] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.891543] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.894320] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.898228] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127720.901480] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.906242] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.914123] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.920542] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.924528] Stack : 813279d8 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.932947]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.941368]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.949788]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.958209]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.966628]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.969146] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.971520] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.975068] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.978616] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.982174] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.985754] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.989295] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.992877] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.996425] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127720.999970] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.003533] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.007113] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.012593] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.018345] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.024016] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.027574] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.031131] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.034691] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.038258] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.041823] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.045368]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.046925] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.049301] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.049301]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.049301]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.049301]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.049301]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.049301]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.081501] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.105384] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.136682] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.140068] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.151266] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.155001] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.158389] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.163679] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.166631] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.169583] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.172360] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.176268] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127721.179516] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.184287] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.192162] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.198581] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.202568] Stack : 81327a98 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.210987]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.219408]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.227827]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.236248]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

... to be continued

sppmaster · September 21, 2020, 11:31am

continuing

.....continuing
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.244668]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.247184] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.249559] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.253107] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.256655] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.260213] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.263794] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.267334] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.270918] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.274463] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.278009] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.281573] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.285152] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.290632] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.296383] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.302055] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.305614] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.309171] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.312732] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.316296] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.319862] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.323407]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.324965] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.327340] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.327340]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.327340]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.327340]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.327340]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.327340]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.359541] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.383424] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.414720] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.418108] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.429306] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.433040] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.436427] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.441719] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.444671] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.447622] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.450400] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.454306] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127721.457555] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.462309] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.470202] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.476620] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.480608] Stack : 81327b58 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.489027]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.497445]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.505867]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.514287]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.522708]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.525224] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.527597] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.531147] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.534693] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.538252] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.541834] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.545374] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.548956] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.552503] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.556049] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.559612] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.563192] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.568672] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.574422] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.580095] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.583653] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.587211] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.590770] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.594337] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.597900] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.601447]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.603003] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.605380] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.605380]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.605380]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.605380]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.605380]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.605380]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.637579] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.661463] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.692761] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.696146] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.707346] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.711081] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.714466] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.719759] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.722710] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.725662] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.728439] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.732346] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127721.735609] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.740352] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.748239] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.754660] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.758647] Stack : 81327c18 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.767065]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.775485]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.783907]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.792327]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.800746]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.803264] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.805639] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.809187] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.812732] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.816290] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.819873] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.823413] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.826997] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.830541] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.834086] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.837651] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.841232] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.846711] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.852461] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.858132] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.861693] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.865251] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.868810] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.872375] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.875939] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.879487]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.881042] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.883419] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.883419]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.883419]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.883419]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.883419]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.883419]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.915617] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.939502] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.970800] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.974185] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.985385] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.989118] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.992506] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127721.997798] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.000749] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.003701] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.006479] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.010384] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127722.013634] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.018390] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.026279] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.032699] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.036686] Stack : 81327cd8 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.045105]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.053525]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.061944]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.070366]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.078786]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.081304] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.083678] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.087226] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.090773] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.094330] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.097912] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.101452] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.105036] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.108581] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.112126] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.115690] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.119271] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.124750] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.130501] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.136172] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.139732] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.143291] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.146850] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.150415] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.153979] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.157524]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.159082] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.161459] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.161459]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.161459]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.161459]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.161459]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.161459]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.193658] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.217543] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.248840] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.252225] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.263425] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.267159] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.270546] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.275837] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.278789] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.281741] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.284518] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.288423] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127722.291674] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.296439] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.304318] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.310738] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.314726] Stack : 81327d98 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.323145]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.331564]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.339985]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.348405]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.356826]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.359343] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.361717] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.365265] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.368811] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.372370] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.375950] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.379493] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.383076] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.386620] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.390165] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.393729] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.397310] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.402790] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.408541] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.414212] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.417771] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.421330] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.424889] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.428454] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.432018] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.435564]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.437121] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.439499] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.439499]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.439499]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.439499]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.439499]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.439499]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.471698] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.495583] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.526879] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.530264] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.541464] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.545197] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.548585] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.553877] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.556828] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.559780] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.562558] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.566463] 1085 pages reserved
Mon Sep 21 13:58:53 2020 kern.err kernel: [127722.569713] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.574479] kworker/0:1: page allocation failure: order:0, mode:0x2080020(GFP_ATOMIC)
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.582358] CPU: 0 PID: 102 Comm: kworker/0:1 Not tainted 4.9.214 #0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.588778] Workqueue: events 0x8026adb8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.592765] Stack : 81327e58 80ccd4d0 80c18038 800a8f50 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.601183]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.609604]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.618024]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.626443]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.634865]         ...
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.637383] Call Trace:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.639758] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.643305] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.646852] [<8006ab8c>] 0x8006ab8c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.650409] [<800de840>] 0x800de840
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.653991] [<800dec74>] 0x800dec74
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.657532] [<800a85b8>] 0x800a85b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.661115] [<800df420>] 0x800df420
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.664661] [<800a8f50>] 0x800a8f50
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.668205] [<80282a88>] 0x80282a88
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.671769] [<800d574c>] 0x800d574c
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.675348] [<80c68090>] 0x80c68090 [ath@80c68000+0x41c0]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.680829] [<80de6aec>] 0x80de6aec [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.686580] [<80de47c4>] 0x80de47c4 [ath9k@80de0000+0x15d50]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.692251] [<80082af4>] 0x80082af4
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.695810] [<800823cc>] 0x800823cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.699369] [<800ae4cc>] 0x800ae4cc
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.702929] [<80340000>] 0x80340000
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.706494] [<801eb118>] 0x801eb118
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.710058] [<800660b8>] 0x800660b8
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.713603]
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.715160] Mem-Info:
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.717539] active_anon:1335 inactive_anon:13 isolated_anon:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.717539]  active_file:365 inactive_file:225 isolated_file:7
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.717539]  unevictable:0 dirty:0 writeback:0 unstable:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.717539]  slab_reclaimable:302 slab_unreclaimable:2670
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.717539]  mapped:353 shmem:179 pagetables:90 bounce:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.717539]  free:96 free_pcp:0 free_cma:0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.749737] Node 0 active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:1412kB dirty:0kB writeback:0kB shmem:716kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.773621] Normal free:384kB min:1024kB low:1280kB high:1536kB active_anon:5340kB inactive_anon:52kB active_file:1460kB inactive_file:900kB unevictable:0kB writepending:0kB present:32768kB managed:28428kB mlocked:0kB slab_reclaimable:1208kB slab_unreclaimable:10680kB kernel_stack:392kB pagetables:360kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.804918] lowmem_reserve[]: 0 0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.808303] Normal: 56*4kB (ME) 20*8kB (ME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.819503] 775 total pagecache pages
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.823236] 0 pages in swap cache
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.826625] Swap cache stats: add 0, delete 0, find 0/0
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.831917] Free swap  = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.834866] Total swap = 0kB
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.837819] 8192 pages RAM
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.840597] 0 pages HighMem/MovableOnly
Mon Sep 21 13:58:53 2020 kern.warn kernel: [127722.844503] 1085 pages reserved

again lot's of this - ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:53 2020 kern.err kernel: [127722.847758] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:54 2020 kern.err kernel: [127723.134214] ath: skbuff alloc of size 1974 failed
Mon Sep 21 13:58:54 2020 daemon.info hostapd: wlan0-2: STA xx:xx:xx:xx:xx:xx IEEE 802.11: authenticated
Mon Sep 21 13:58:54 2020 daemon.info hostapd: wlan0-2: STA xx:xx:xx:xx:xx:xx IEEE 802.11: authenticated
Mon Sep 21 13:58:54 2020 daemon.info hostapd: wlan0-2: STA xx:xx:xx:xx:xx:xx IEEE 802.11: authenticated
Mon Sep 21 13:58:58 2020 daemon.info hostapd: wlan0-2: STA xx:xx:xx:xx:xx:xx IEEE 802.11: authenticated
Mon Sep 21 13:58:58 2020 daemon.info hostapd: wlan0-2: STA xx:xx:xx:xx:xx:xx IEEE 802.11: associated (aid 1)
Mon Sep 21 13:58:58 2020 daemon.info hostapd: wlan0-2: STA xx:xx:xx:xx:xx:xx IEEE 802.11: associated (aid 1)
Mon Sep 21 13:58:58 2020 daemon.info hostapd: wlan0-2: STA xx:xx:xx:xx:xx:xx IEEE 802.11: associated (aid 1)
Mon Sep 21 13:58:59 2020 daemon.notice hostapd: wlan0-2: AP-STA-CONNECTED xx:xx:xx:xx:xx:xx
Mon Sep 21 13:58:59 2020 daemon.info hostapd: wlan0-2: STA xx:xx:xx:xx:xx:xx WPA: pairwise key handshake completed (RSN)

mk24 · September 21, 2020, 12:47pm

Allocation failed means the kernel is out of RAM. Devices like these with only 32 MB of RAM are not recommended, especially as a heavily used main router.

maurer · September 21, 2020, 12:58pm

you can test my lede build here [Testing] lede-17.01 security backports for 432 devices

sppmaster · September 21, 2020, 3:44pm

Thanks for your suggestion.
I would like to test it but I need WLAN to be turned on on first boot and DDNS too, because the device is difficult / impossible to reach via LAN at the moment. I'll PM you for more details if you can help.

sppmaster · September 21, 2020, 3:50pm

Thanks I supposed OOM too but I wondered if I can track where all those connections come from.
The good part is that the router survives this and doesn't reboot and for now all the services (LAN, WLAN, etc) recover and continue to function normally.