root@OpenWrt:~# dmesg
[    0.000000] Linux version 4.14.143 (cezary@eko.one.pl) (gcc version 7.4.0 (OpenWrt GCC 7.4.0 r10532-cf3b50377e)) #0 Sat Sep 14 15:10:41 2019
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 00019750 (MIPS 74Kc)
[    0.000000] MIPS: machine is TP-Link Archer C2 v3
[    0.000000] SoC: Qualcomm Atheros QCA956X ver 1 rev 0
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 04000000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000003ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000003ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000003ffffff]
[    0.000000] On node 0 totalpages: 16384
[    0.000000] free_area_init_node: node 0, pgdat 804f9f30, node_mem_map 81008440
[    0.000000]   Normal zone: 128 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 16384 pages, LIFO batch:3
[    0.000000] random: get_random_bytes called from 0x804fd740 with crng_init=0
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 16256
[    0.000000] Kernel command line: console=ttyS0,115200n8 rootfstype=squashfs,jffs2
[    0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] Memory: 58332K/65536K available (4023K kernel code, 160K rwdata, 532K rodata, 1228K init, 211K bss, 7204K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 51
[    0.000000] CPU clock: 775.000 MHz
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 4932285024 ns
[    0.000007] sched_clock: 32 bits at 387MHz, resolution 2ns, wraps every 5541893118ns
[    0.008227] Calibrating delay loop... 385.84 BogoMIPS (lpj=1929216)
[    0.074770] pid_max: default: 32768 minimum: 301
[    0.079794] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.086774] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.097768] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.108166] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.114665] pinctrl core: initialized pinctrl subsystem
[    0.122213] NET: Registered protocol family 16
[    0.129504] PCI host bridge /ahb/apb/pcie-controller@18250000 ranges:
[    0.136347]  MEM 0x0000000012000000..0x0000000013ffffff
[    0.141851]   IO 0x0000000000000000..0x0000000000000000
[    0.161819] PCI host bridge to bus 0000:00
[    0.166145] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff]
[    0.173424] pci_bus 0000:00: root bus resource [io  0x0000]
[    0.179291] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[    0.186450] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    0.194828] pci 0000:00:00.0: [168c:0050] type 00 class 0x028000
[    0.194880] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[    0.194932] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[    0.195002] pci 0000:00:00.0: supports D1
[    0.195009] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
[    0.195182] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    0.195205] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit]
[    0.202951] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref]
[    0.213205] clocksource: Switched to clocksource MIPS
[    0.219425] NET: Registered protocol family 2
[    0.224801] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.232157] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.238903] TCP: Hash tables configured (established 1024 bind 1024)
[    0.245732] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.251896] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.258746] NET: Registered protocol family 1
[    0.263407] PCI: CLS 0 bytes, default 32
[    0.265965] Crashlog allocated RAM at address 0x3f00000
[    0.272627] workingset: timestamp_bits=30 max_order=14 bucket_order=0
[    0.283701] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.289844] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.308395] io scheduler noop registered
[    0.312525] io scheduler deadline registered (default)
[    0.319682] pinctrl-single 1804002c.pinmux: 544 pins at pa b804002c size 68
[    0.328003] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.336790] console [ttyS0] disabled
[    0.340587] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 9, base_baud = 1562500) is a 16550A
[    0.349720] console [ttyS0] enabled
[    0.357275] bootconsole [early0] disabled
[    0.375400] m25p80 spi0.0: gd25q64 (8192 Kbytes)
[    0.380211] 5 fixed-partitions partitions found on MTD device spi0.0
[    0.386803] Creating 5 MTD partitions on "spi0.0":
[    0.391758] 0x000000000000-0x000000020000 : "factory-uboot"
[    0.398209] 0x000000020000-0x000000030000 : "uboot"
[    0.403939] 0x000000030000-0x0000007d0000 : "firmware"
[    0.412371] 2 uimage-fw partitions found on MTD device firmware
[    0.418527] Creating 2 MTD partitions on "firmware":
[    0.423677] 0x000000000000-0x0000001852cb : "kernel"
[    0.429453] 0x0000001852cb-0x0000007a0000 : "rootfs"
[    0.435228] mtd: device 4 (rootfs) set to be root filesystem
[    0.441105] 1 squashfs-split partitions found on MTD device rootfs
[    0.447533] 0x0000003d0000-0x0000007a0000 : "rootfs_data"
[    0.453789] 0x0000007e0000-0x0000007f0000 : "info"
[    0.459366] 0x0000007f0000-0x000000800000 : "art"
[    0.465888] libphy: Fixed MDIO Bus: probed
[    1.143557] libphy: ag71xx_mdio: probed
[    1.150497] switch0: Atheros AR8337 rev. 2 switch registered on mdio-bus.0
[    1.804680] ag71xx 19000000.eth: connected to PHY at mdio-bus.0:00 [uid=004dd036, driver=Atheros AR8216/AR8236/AR8316]
[    1.816268] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: sgmii
[    1.825278] NET: Registered protocol family 10
[    1.835084] Segment Routing with IPv6
[    1.838944] NET: Registered protocol family 17
[    1.843620] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    1.857018] 8021q: 802.1Q VLAN Support v1.8
[    1.862735] hctosys: unable to open rtc device (rtc0)
[    1.873060] VFS: Mounted root (squashfs filesystem) readonly on device 31:4.
[    1.887047] Freeing unused kernel memory: 1228K
[    1.891723] This architecture does not have kernel memory protection.
[    2.494315] init: Console is alive
[    2.498019] init: - watchdog -
[    2.553227] random: fast init done
[    3.455987] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    3.567704] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    3.585832] init: - preinit -
[    4.683537] random: jshn: uninitialized urandom read (4 bytes read)
[    4.918575] random: jshn: uninitialized urandom read (4 bytes read)
[    5.122981] random: jshn: uninitialized urandom read (4 bytes read)
[    6.429088] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    6.435243] IPv6: ADDRCONF(NETDEV_UP): eth0.1: link is not ready
[    6.474309] urandom_read: 4 callbacks suppressed
[    6.474316] random: procd: uninitialized urandom read (4 bytes read)
[    7.474529] eth0: link up (1000Mbps/Full duplex)
[    7.479386] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[    7.486194] IPv6: ADDRCONF(NETDEV_CHANGE): eth0.1: link becomes ready
[    9.665699] jffs2: notice: (461) jffs2_build_xattr_subsystem: complete building xattr subsystem, 9 of xdatum (0 unchecked, 7 orphan) and 11 of xref (7 dead, 0 orphan) found.
[    9.683588] mount_root: switching to jffs2 overlay
[    9.708274] overlayfs: upper fs does not support tmpfile.
[    9.720097] urandom-seed: Seeding with /etc/urandom.seed
[    9.815723] eth0: link down
[    9.835239] procd: - early -
[    9.838302] procd: - watchdog -
[   10.409589] procd: - watchdog -
[   10.413104] procd: - ubus -
[   10.437996] random: ubusd: uninitialized urandom read (4 bytes read)
[   10.467321] random: ubusd: uninitialized urandom read (4 bytes read)
[   10.475085] procd: - init -
[   11.233499] kmodloader: loading kernel modules from /etc/modules.d/*
[   11.256836] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   11.278071] Loading modules backported from Linux version v4.19.66-0-g893af1c79e42
[   11.285932] Backport generated by backports.git v4.19.66-1-0-g354501da
[   11.316531] ip_tables: (C) 2000-2006 Netfilter Core Team
[   11.337607] nf_conntrack version 0.5.0 (1024 buckets, 4096 max)
[   11.349153] urngd: v1.0.0 started.
[   11.438170] xt_time: kernel timezone is -0000
[   11.637456] PPP generic driver version 2.4.2
[   11.654002] NET: Registered protocol family 24
[   11.699665] random: crng init done
[   11.705971] ath10k 4.19 driver, optimized for CT firmware, probing pci device: 0x50.
[   11.715680] PCI: Enabling device 0000:00:00.0 (0000 -> 0002)
[   11.721683] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0
[   11.997405] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/fwcfg-pci-0000:00:00.0.txt failed with error -2
[   12.008311] ath10k_pci 0000:00:00.0: Falling back to user helper
[   12.203597] firmware ath10k!fwcfg-pci-0000:00:00.0.txt: firmware_loading_store: map pages failed
[   12.212924] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:00:00.0.bin failed with error -2
[   12.224010] ath10k_pci 0000:00:00.0: Falling back to user helper
[   12.402260] firmware ath10k!pre-cal-pci-0000:00:00.0.bin: firmware_loading_store: map pages failed
[   12.412894] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/ct-firmware-5.bin failed with error -2
[   12.424260] ath10k_pci 0000:00:00.0: Falling back to user helper
[   12.597487] firmware ath10k!QCA9887!hw1.0!ct-firmware-5.bin: firmware_loading_store: map pages failed
[   12.607301] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/ct-firmware-2.bin failed with error -2
[   12.618647] ath10k_pci 0000:00:00.0: Falling back to user helper
[   12.798565] firmware ath10k!QCA9887!hw1.0!ct-firmware-2.bin: firmware_loading_store: map pages failed
[   12.808383] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/firmware-6.bin failed with error -2
[   12.819468] ath10k_pci 0000:00:00.0: Falling back to user helper
[   12.992569] firmware ath10k!QCA9887!hw1.0!firmware-6.bin: firmware_loading_store: map pages failed
[   13.002118] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/firmware-5.bin failed with error -2
[   13.013205] ath10k_pci 0000:00:00.0: Falling back to user helper
[   13.186937] firmware ath10k!QCA9887!hw1.0!firmware-5.bin: firmware_loading_store: map pages failed
[   13.196485] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/firmware-4.bin failed with error -2
[   13.207569] ath10k_pci 0000:00:00.0: Falling back to user helper
[   13.384406] firmware ath10k!QCA9887!hw1.0!firmware-4.bin: firmware_loading_store: map pages failed
[   13.393956] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/firmware-3.bin failed with error -2
[   13.405039] ath10k_pci 0000:00:00.0: Falling back to user helper
[   13.577967] firmware ath10k!QCA9887!hw1.0!firmware-3.bin: firmware_loading_store: map pages failed
[   13.591072] ath10k_pci 0000:00:00.0: qca9887 hw1.0 target 0x4100016d chip_id 0x004000ff sub 0000:0000
[   13.600647] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   13.613184] ath10k_pci 0000:00:00.0: firmware ver 10.1-ct-87-__fW-022-fa250764 api 2 features wmi-10.x,has-wmi-mgmt-tx,mfp,txstatus-noack,wmi-10.x-CT,ratemask-CT,txrate-CT,get-temp-CT,tx-rc-CT,cust-stats-CT,retry-gt2-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT crc32 bae7d809
[   13.736144] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/board-2.bin failed with error -2
[   13.746956] ath10k_pci 0000:00:00.0: Falling back to user helper
[   13.851491] firmware ath10k!QCA9887!hw1.0!board-2.bin: firmware_loading_store: map pages failed
[   13.860928] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 546cca0d
[   14.847216] ath10k_pci 0000:00:00.0: 10.1 wmi init: vdevs: 16  peers: 127  tid: 256
[   14.861928] ath10k_pci 0000:00:00.0: wmi print 'P 128 V 8 T 410'
[   14.868389] ath10k_pci 0000:00:00.0: wmi print 'msdu-desc: 1424  sw-crypt: 0 ct-sta: 0'
[   14.876686] ath10k_pci 0000:00:00.0: wmi print 'alloc rem: 21496 iram: 11988'
[   14.921659] ath10k_pci 0000:00:00.0: htt-ver 2.1 wmi-op 2 htt-op 2 cal file max-sta 128 raw 0 hwcrypto 1
[   14.934776] ath10k_pci 0000:00:00.0: NOTE:  Firmware DBGLOG output disabled in debug_mask: 0x10000000
[   15.076372] ath: EEPROM regdomain: 0x0
[   15.076379] ath: EEPROM indicates default country code should be used
[   15.076382] ath: doing EEPROM country->regdmn map search
[   15.076395] ath: country maps to regdmn code: 0x3a
[   15.076399] ath: Country alpha2 being used: US
[   15.076402] ath: Regpair used: 0x3a
[   15.140628] ath: EEPROM regdomain: 0x0
[   15.140635] ath: EEPROM indicates default country code should be used
[   15.140638] ath: doing EEPROM country->regdmn map search
[   15.140651] ath: country maps to regdmn code: 0x3a
[   15.140656] ath: Country alpha2 being used: US
[   15.140659] ath: Regpair used: 0x3a
[   15.153321] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
[   15.154865] ieee80211 phy1: Atheros AR9561 Rev:0 mem=0xb8100000, irq=2
[   15.199657] kmodloader: done loading kernel modules from /etc/modules.d/*
[   23.048397] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   23.056018] eth0: link up (1000Mbps/Full duplex)
[   23.060813] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   23.084901] br-lan: port 1(eth0.1) entered blocking state
[   23.090485] br-lan: port 1(eth0.1) entered disabled state
[   23.096497] device eth0.1 entered promiscuous mode
[   23.101450] device eth0 entered promiscuous mode
[   23.134940] br-lan: port 1(eth0.1) entered blocking state
[   23.140529] br-lan: port 1(eth0.1) entered forwarding state
[   23.146484] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
[   24.113668] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
[   25.081466] ath: EEPROM regdomain: 0x8268
[   25.081474] ath: EEPROM indicates we should expect a country code
[   25.081480] ath: doing EEPROM country->regdmn map search
[   25.081485] ath: country maps to regdmn code: 0x37
[   25.081490] ath: Country alpha2 being used: PL
[   25.081493] ath: Regpair used: 0x37
[   25.081498] ath: regdomain 0x8268 dynamically updated by user
[   25.081568] ath: EEPROM regdomain: 0x8268
[   25.081571] ath: EEPROM indicates we should expect a country code
[   25.081575] ath: doing EEPROM country->regdmn map search
[   25.081580] ath: country maps to regdmn code: 0x37
[   25.081583] ath: Country alpha2 being used: PL
[   25.081586] ath: Regpair used: 0x37
[   25.081589] ath: regdomain 0x8268 dynamically updated by user
[   27.255503] ath10k_pci 0000:00:00.0: 10.1 wmi init: vdevs: 16  peers: 127  tid: 256
[   27.270191] ath10k_pci 0000:00:00.0: wmi print 'P 128 V 8 T 410'
[   27.276868] ath10k_pci 0000:00:00.0: wmi print 'msdu-desc: 1424  sw-crypt: 0 ct-sta: 0'
[   27.285184] ath10k_pci 0000:00:00.0: wmi print 'alloc rem: 21496 iram: 11988'
[   27.330384] ath10k_pci 0000:00:00.0: pdev param 0 not supported by firmware
[   27.343249] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   27.376466] br-lan: port 2(wlan0) entered blocking state
[   27.381959] br-lan: port 2(wlan0) entered disabled state
[   27.387765] device wlan0 entered promiscuous mode
[   27.636543] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[   27.666701] br-lan: port 3(wlan1) entered blocking state
[   27.672190] br-lan: port 3(wlan1) entered disabled state
[   27.678025] device wlan1 entered promiscuous mode
[   27.682969] br-lan: port 3(wlan1) entered blocking state
[   27.688508] br-lan: port 3(wlan1) entered forwarding state
[   28.353265] br-lan: port 3(wlan1) entered disabled state
[   29.349842] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[   29.356618] br-lan: port 3(wlan1) entered blocking state
[   29.362125] br-lan: port 3(wlan1) entered forwarding state
[  100.634632] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  100.641442] br-lan: port 2(wlan0) entered blocking state
[  100.646984] br-lan: port 2(wlan0) entered forwarding state
[928189.536836] hostapd invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null),  order=0, oom_score_adj=0
[928189.549929] CPU: 0 PID: 1629 Comm: hostapd Not tainted 4.14.143 #0
[928189.557113] Stack : 00000000 800b29e4 80500000 804ae488 00000000 00000000 00000000 00000000
[928189.566706]         00000000 00000000 00000000 00000000 00000000 00000001 827cdb30 6a387cb0
[928189.575658]         827cdbc8 00000000 00000000 00005220 00000038 804471f8 00000007 00000000
[928189.584761]         000000fe 81c453ae 000000fd 6d3a2068 827cdb10 80000000 827cdd20 8048705c
[928189.593798]         00000003 00200000 ffffffff 00000025 00000010 8027f154 00000000 80630000
[928189.603057]         ...
[928189.605686] Call Trace:
[928189.605698] [<800b29e4>] 0x800b29e4
[928189.612149] [<80500000>] 0x80500000
[928189.616207] [<804471f8>] 0x804471f8
[928189.620345] [<8027f154>] 0x8027f154
[928189.624453] [<8006a56c>] 0x8006a56c
[928189.628735] [<8006a574>] 0x8006a574
[928189.632895] [<800f638c>] 0x800f638c
[928189.636962] [<800f5674>] 0x800f5674
[928189.641024] [<800f622c>] 0x800f622c
[928189.645046] [<800fa730>] 0x800fa730
[928189.648986] [<800f0fdc>] 0x800f0fdc
[928189.652732] [<800f2f7c>] 0x800f2f7c
[928189.656423] [<8011d5dc>] 0x8011d5dc
[928189.660504] [<80119b24>] 0x80119b24
[928189.664247] [<8011dde4>] 0x8011dde4
[928189.668564] [<80071760>] 0x80071760
[928189.672315] [<800a8168>] 0x800a8168
[928189.676857] [<800a886c>] 0x800a886c
[928189.680765] [<800bd30c>] 0x800bd30c
[928189.684637] [<800bcc04>] 0x800bcc04
[928189.688424] [<8044915c>] 0x8044915c
[928189.692438] [<800c9bf8>] 0x800c9bf8
[928189.696416] [<80155610>] 0x80155610
[928189.700311] [<800770dc>] 0x800770dc
[928189.704055]
[928189.706104] Mem-Info:
[928189.708797] active_anon:333 inactive_anon:9 isolated_anon:0
[928189.708797]  active_file:122 inactive_file:202 isolated_file:0
[928189.708797]  unevictable:0 dirty:0 writeback:0 unstable:0
[928189.708797]  slab_reclaimable:198 slab_unreclaimable:1246
[928189.708797]  mapped:2 shmem:24 pagetables:59 bounce:0
[928189.708797]  free:2038 free_pcp:4 free_cma:0
[928189.742766] Node 0 active_anon:1332kB inactive_anon:36kB active_file:488kB inactive_file:808kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:96kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[928189.766248] Normal free:8076kB min:8192kB low:10240kB high:12288kB active_anon:1332kB inactive_anon:36kB active_file:488kB inactive_file:808kB unevictable:0kB writepending:0kB present:65536kB managed:59560kB mlocked:0kB kernel_stack:320kB pagetables:236kB bounce:0kB free_pcp:24kB local_pcp:24kB free_cma:0kB
[928189.795271] lowmem_reserve[]: 0 0
[928189.798803] Normal: 195*4kB (UE) 130*8kB (UME) 55*16kB (UME) 28*32kB (UME) 13*64kB (UME) 5*128kB (UME) 2*256kB (E) 1*512kB (M) 2*1024kB (UE) 0*2048kB 0*4096kB = 8140kB
[928189.814860] 348 total pagecache pages
[928189.819025] 0 pages in swap cache
[928189.822884] Swap cache stats: add 0, delete 0, find 0/0
[928189.828964] Free swap  = 0kB
[928189.832452] Total swap = 0kB
[928189.835723] 16384 pages RAM
[928189.839074] 0 pages HighMem/MovableOnly
[928189.843459] 1494 pages reserved
[928189.846793] [ pid ]   uid  tgid total_vm      rss nr_ptes nr_pmds swapents oom_score_adj name
[928189.856524] [  530]     0   530      300       16       4       0        0             0 ubusd
[928189.866014] [  531]     0   531      229       10       3       0        0             0 askfirst
[928189.876020] [  548]     0   548      255       12       3       0        0             0 urngd
[928189.885834] [  960]     0   960      321       44       6       0        0             0 logd
[928189.895048] [ 1027]   453  1027      337       28       5       0        0             0 dnsmasq
[928189.904886] [ 1060]     0  1060      268       11       3       0        0             0 dropbear
[928189.914707] [ 1117]     0  1117      418       38       4       0        0             0 netifd
[928189.924211] [ 1152]     0  1152      360       27       4       0        0             0 odhcpd
[928189.933787] [ 1179]     0  1179      303       11       3       0        0             0 crond
[928189.943056] [ 1355]     0  1355      302       10       4       0        0             0 udhcpc
[928189.952206] [ 1357]     0  1357      261       13       4       0        0             0 odhcp6c
[928189.961494] [ 1397]     0  1397      303       12       3       0        0             0 ntpd
[928189.970444] [ 1573]     0  1573      440       38       4       0        0             0 hostapd
[928189.979642] [ 1629]     0  1629      440       34       4       0        0             0 hostapd
[928189.988819] Out of memory: Kill process 960 (logd) score 3 or sacrifice child
[928189.996312] Killed process 960 (logd) total-vm:1284kB, anon-rss:172kB, file-rss:4kB, shmem-rss:0kB
[928202.586610] hostapd invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null),  order=0, oom_score_adj=0
[928202.599337] CPU: 0 PID: 1629 Comm: hostapd Not tainted 4.14.143 #0
[928202.605899] Stack : 00000000 800b29e4 80500000 804ae488 00000000 00000000 00000000 00000000
[928202.614660]         00000000 00000000 00000000 00000000 00000000 00000001 827cdb30 6a387cb0
[928202.623397]         827cdbc8 00000000 00000000 00006560 00000038 804471f8 00000007 00000000
[928202.632144]         0000013f 19484d4c 0000013e 6d3a2068 827cdb10 80000000 827cdd20 8048705c
[928202.640904]         00000002 00200000 ffffffff 00000025 00000010 8027f154 00000000 80630000
[928202.649658]         ...
[928202.652295] Call Trace:
[928202.652306] [<800b29e4>] 0x800b29e4
[928202.658617] [<80500000>] 0x80500000
[928202.662327] [<804471f8>] 0x804471f8
[928202.666089] [<8027f154>] 0x8027f154
[928202.669781] [<8006a56c>] 0x8006a56c
[928202.673496] [<8006a574>] 0x8006a574
[928202.677265] [<800f638c>] 0x800f638c
[928202.680961] [<800f5674>] 0x800f5674
[928202.684670] [<800f622c>] 0x800f622c
[928202.688365] [<800fa730>] 0x800fa730
[928202.692085] [<800f0fdc>] 0x800f0fdc
[928202.695786] [<800f2f7c>] 0x800f2f7c
[928202.699478] [<802f760c>] 0x802f760c
[928202.703188] [<8011d5dc>] 0x8011d5dc
[928202.706894] [<80119b24>] 0x80119b24
[928202.710654] [<8011dde4>] 0x8011dde4
[928202.714385] [<80071760>] 0x80071760
[928202.718091] [<800a8168>] 0x800a8168
[928202.721800] [<800a886c>] 0x800a886c
[928202.725559] [<800bcc04>] 0x800bcc04
[928202.729264] [<8044915c>] 0x8044915c
[928202.733022] [<802f6108>] 0x802f6108
[928202.736711] [<80155610>] 0x80155610
[928202.740421] [<800770dc>] 0x800770dc
[928202.744181]
[928202.745814] Mem-Info:
[928202.748257] active_anon:290 inactive_anon:9 isolated_anon:0
[928202.748257]  active_file:112 inactive_file:200 isolated_file:0
[928202.748257]  unevictable:0 dirty:0 writeback:0 unstable:0
[928202.748257]  slab_reclaimable:196 slab_unreclaimable:1269
[928202.748257]  mapped:2 shmem:24 pagetables:53 bounce:0
[928202.748257]  free:2046 free_pcp:2 free_cma:0
[928202.781457] Node 0 active_anon:1160kB inactive_anon:36kB active_file:448kB inactive_file:800kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:96kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[928202.804343] Normal free:8184kB min:8192kB low:10240kB high:12288kB active_anon:1160kB inactive_anon:36kB active_file:448kB inactive_file:800kB unevictable:0kB writepending:0kB present:65536kB managed:59560kB mlocked:0kB kernel_stack:312kB pagetables:212kB bounce:0kB free_pcp:8kB local_pcp:8kB free_cma:0kB
[928202.832403] lowmem_reserve[]: 0 0
[928202.835963] Normal: 190*4kB (UE) 118*8kB (UME) 59*16kB (UME) 29*32kB (UME) 12*64kB (ME) 6*128kB (UME) 2*256kB (E) 1*512kB (M) 2*1024kB (UE) 0*2048kB 0*4096kB = 8184kB
[928202.851514] 336 total pagecache pages
[928202.855386] 0 pages in swap cache
[928202.858977] Swap cache stats: add 0, delete 0, find 0/0
[928202.864489] Free swap  = 0kB
[928202.867552] Total swap = 0kB
[928202.870662] 16384 pages RAM
[928202.873657] 0 pages HighMem/MovableOnly
[928202.877850] 1494 pages reserved
[928202.881183] [ pid ]   uid  tgid total_vm      rss nr_ptes nr_pmds swapents oom_score_adj name
[928202.890139] [  530]     0   530      300       16       4       0        0             0 ubusd
[928202.899283] [  531]     0   531      229       10       3       0        0             0 askfirst
[928202.908650] [  548]     0   548      255       12       3       0        0             0 urngd
[928202.917666] [ 1027]   453  1027      337       28       5       0        0             0 dnsmasq
[928202.927097] [ 1060]     0  1060      268       11       3       0        0             0 dropbear
[928202.936812] [ 1117]     0  1117      418       38       4       0        0             0 netifd
[928202.946364] [ 1152]     0  1152      360       27       4       0        0             0 odhcpd
[928202.955659] [ 1179]     0  1179      303       11       3       0        0             0 crond
[928202.965846] [ 1355]     0  1355      302       10       4       0        0             0 udhcpc
[928202.975444] [ 1357]     0  1357      261       13       4       0        0             0 odhcp6c
[928202.985281] [ 1397]     0  1397      303       12       3       0        0             0 ntpd
[928202.994340] [ 1573]     0  1573      440       38       4       0        0             0 hostapd
[928203.003905] [ 1629]     0  1629      440       34       4       0        0             0 hostapd
[928203.013446] Out of memory: Kill process 1117 (netifd) score 2 or sacrifice child
[928203.021599] Killed process 1357 (odhcp6c) total-vm:1044kB, anon-rss:48kB, file-rss:4kB, shmem-rss:0kB
[928204.006881] odhcpd invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null),  order=0, oom_score_adj=0
[928204.019518] CPU: 0 PID: 1152 Comm: odhcpd Not tainted 4.14.143 #0
[928204.025942] Stack : 00000000 800b29e4 80500000 804ae488 00000000 00000000 00000000 00000000
[928204.034696]         00000000 00000000 00000000 00000000 00000000 00000001 833ffb30 122272e3
[928204.043609]         833ffbc8 00000000 00000000 00007840 00000038 804471f8 00000007 00000000
[928204.052387]         0000017f ba61023f 0000017e 6d3a206f 833ffb10 80000000 833ffd20 8048705c
[928204.061119]         00000002 00200000 ffffffff 00000025 00000008 8027f154 00000000 80630000
[928204.069911]         ...
[928204.072574] Call Trace:
[928204.072587] [<800b29e4>] 0x800b29e4
[928204.078883] [<80500000>] 0x80500000
[928204.082647] [<804471f8>] 0x804471f8
[928204.086454] [<8027f154>] 0x8027f154
[928204.090153] [<8006a56c>] 0x8006a56c
[928204.093868] [<8006a574>] 0x8006a574
[928204.097565] [<800f638c>] 0x800f638c
[928204.101354] [<800f5674>] 0x800f5674
[928204.105055] [<800f622c>] 0x800f622c
[928204.108749] [<800fa730>] 0x800fa730
[928204.112491] [<800f0fdc>] 0x800f0fdc
[928204.116196] [<800f2f7c>] 0x800f2f7c
[928204.119888] [<8011d5dc>] 0x8011d5dc
[928204.123634] [<80119b24>] 0x80119b24
[928204.127332] [<8011dde4>] 0x8011dde4
[928204.131042] [<80071760>] 0x80071760
[928204.134755] [<800a8168>] 0x800a8168
[928204.138455] [<800a886c>] 0x800a886c
[928204.142152] [<800a4150>] 0x800a4150
[928204.145850] [<8044915c>] 0x8044915c
[928204.149549] [<80185668>] 0x80185668
[928204.153249] [<800c9cf4>] 0x800c9cf4
[928204.156936] [<800770dc>] 0x800770dc
[928204.160632]
[928204.162273] Mem-Info:
[928204.164725] active_anon:278 inactive_anon:9 isolated_anon:0
[928204.164725]  active_file:144 inactive_file:201 isolated_file:0
[928204.164725]  unevictable:0 dirty:0 writeback:0 unstable:0
[928204.164725]  slab_reclaimable:196 slab_unreclaimable:1258
[928204.164725]  mapped:5 shmem:24 pagetables:49 bounce:0
[928204.164725]  free:2055 free_pcp:16 free_cma:0
[928204.197969] Node 0 active_anon:1112kB inactive_anon:36kB active_file:576kB inactive_file:804kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:20kB dirty:0kB writeback:0kB shmem:96kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes

BusyBox v1.30.1 () built-in shell (ash)

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------------------------------
 |                                                                           |
 | OpenWrt 19.07-SNAPSHOT, r10532-cf3b50377e                                 |
 |                                                                           |
 | Build time: 2019-09-14 23:59 CEST                                         |
 | Cezary Jackiewicz (obsy), [url]http://eko.one.pl[/url]                               |
 |                                                                           |
 -----------------------------------------------------------------------------
 | Machine: TP-Link Archer C2 v3                                             |
 | Uptime: 0d, 12:13:18                                                      |
 | Load: 0.07 0.02 0.00                                                      |
 | Flash: total: 3.8MB, free: 3.5MB, used: 8%                                |
 | Memory: total: 58.2MB, free: 32.1MB, used: 44%                            |
 | WAN:                                                                      |
 | LAN: 192.168.20.20, leases: 0                                             |
 | radio0: mode: ap, ssid: Diablo, channel: auto, conn: 1                    |
 | radio1: mode: ap, ssid: Mefisto, channel: 13, conn: 2                     |
 -----------------------------------------------------------------------------

root@OpenWrt:~# free 
              total        used        free      shared  buff/cache   available
Mem:          59560       23584       31752         100        4224       21964
Swap:             0           0           0

root@OpenWrt:/tmp# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                 2.5M      2.5M         0 100% /rom
tmpfs                    29.1M    100.0K     29.0M   0% /tmp
/dev/mtdblock5            3.8M    296.0K      3.5M   8% /overlay
overlayfs:/overlay        3.8M    296.0K      3.5M   8% /
tmpfs                   512.0K         0    512.0K   0% /dev