WiFi disconnects while downloading files with kernel issues












0














I have tried to find a solution for a very long time but any changes did not improved my WiFi performance.



System: Mac Mini (late 2014), 18.10, running headless with Kodi login environment



Issue: WiFi disconnects randomly while downloading a large portion of data from the Internet



Reproduction: When the PC is downloading w big chunk of data (eg. torrents) it disconnects from the WiFi after few minutes. Normal usage (idle system, updates) does not disconnect from WiFi.



Steps already applied: changed network manager to wicd, changed torrent downloader, changed WiFi power saver to disabled, checked effects of UFW on connection.



System information:



lspci



02:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4360 802.11ac Wireless Network Adapter (rev 03)


rfkill



ID TYPE      DEVICE        SOFT      HARD
0 wlan phy0 unblocked unblocked
1 wlan brcmwl-0 unblocked unblocked
2 bluetooth hci0 unblocked unblocked


ifconfig



wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 192.168.0.27 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::1e36:bbff:fe00:62f4 prefixlen 64 scopeid 0x20<link>
ether 1c:36:bb:00:62:f4 txqueuelen 1000 (Ethernet)
RX packets 233437 bytes 80035114 (80.0 MB)
RX errors 0 dropped 1426 overruns 0 frame 12755
TX packets 97468 bytes 20840255 (20.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 18


iwconfig



wlp2s0    IEEE 802.11  ESSID:"###"
Mode:Managed Frequency:5.5 GHz Access Point: AC:84:C9:23:D2:0F
Bit Rate=351 Mb/s Tx-Power=200 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=47/70 Signal level=-63 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0


Last syslog events (seconds before disconnect) print multiple kernel messages:



Dec 29 13:02:25 salonik-Macmini kernel: [139898.433983] swapper/0: page allocation failure: order:0, mode:0x480020(GFP_ATOMIC), nodemask=(null)
Dec 29 13:02:25 salonik-Macmini kernel: [139898.433986] swapper/0 cpuset=/ mems_allowed=0-1023
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434007] CPU: 0 PID: 0 Comm: swapper/0 Tainted: P OE 4.18.0-13-generic #14-Ubuntu
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434008] Hardware name: Apple Inc. Macmini7,1/Mac-35C5E08120C7EEAF, BIOS MM71.88Z.0231.B00.1804091715 04/09/2018
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434010] Call Trace:
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434012] <IRQ>
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434020] dump_stack+0x63/0x83
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434027] warn_alloc.cold.115+0x69/0xfc
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434032] __alloc_pages_slowpath+0xd98/0xde0
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434037] ? tcp_rcv_established+0x57b/0x620
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434042] ? __build_skb+0x2b/0xf0
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434046] __alloc_pages_nodemask+0x263/0x280
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434050] page_frag_alloc+0x121/0x150
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434054] __netdev_alloc_skb+0xa7/0x120
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434111] osl_pktget+0x1d/0x50 [wl]
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434145] dma_txpioloopback+0x7d0/0x15a4 [wl]
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434175] ? dma_txpioloopback+0x2b4/0x15a4 [wl]
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434223] wlc_bmac_recv+0x9b/0x53f [wl]
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434275] ? wlc_intrson+0x1b3/0x1c4 [wl]
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434327] wlc_dpc+0x175/0x26a [wl]
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434378] wl_dpc+0x9e/0x170 [wl]
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434383] tasklet_action_common.isra.19+0x5f/0x110
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434387] tasklet_action+0x22/0x30
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434391] __do_softirq+0xdc/0x2b5
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434395] irq_exit+0xb7/0xc0
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434397] do_IRQ+0x8a/0xd0
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434400] common_interrupt+0xf/0xf
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434402] </IRQ>
Dec 29 13:02:25 salonik-Macmini kernel: [139898.434405] RIP: 0010:cpuidle_enter_state+0xb9/0x2b0
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435526] Code: ff e8 6b 67 89 ff 80 7d d3 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 d6 01 00 00 31 ff e8 6e 72 8f ff fb 66 0f 1f 44 00 00 $
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435585] RSP: 0018:ffffffff85203e00 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffd7
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435588] RAX: ffff8f83ef222c40 RBX: 00007f3ca47e6e58 RCX: 000000000000001f
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435590] RDX: 00007f3ca47e6e58 RSI: 0000000000000000 RDI: 0000000000000000
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435592] RBP: ffffffff85203e38 R08: 0000fe8184a9b7f8 R09: 0000000000000002
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435594] R10: 00000000ffffffff R11: ffff8f83ef221ac8 R12: 0000000000000001
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435596] R13: ffff8f83ef22cb40 R14: ffffffff85384858 R15: 00007f3ca47e6057
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435601] cpuidle_enter+0x17/0x20
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435604] call_cpuidle+0x23/0x40
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435607] do_idle+0x23a/0x280
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435611] cpu_startup_entry+0x73/0x80
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435616] rest_init+0xae/0xb0
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435620] start_kernel+0x539/0x55a
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435625] x86_64_start_reservations+0x24/0x26
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435628] x86_64_start_kernel+0x74/0x77
Dec 29 13:02:25 salonik-Macmini kernel: [139898.435631] secondary_startup_64+0xa5/0xb0


Rebooting is the only solution that temporarily brings the connection back.
Any ideas what might work?










share|improve this question







New contributor




Norbert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

























    0














    I have tried to find a solution for a very long time but any changes did not improved my WiFi performance.



    System: Mac Mini (late 2014), 18.10, running headless with Kodi login environment



    Issue: WiFi disconnects randomly while downloading a large portion of data from the Internet



    Reproduction: When the PC is downloading w big chunk of data (eg. torrents) it disconnects from the WiFi after few minutes. Normal usage (idle system, updates) does not disconnect from WiFi.



    Steps already applied: changed network manager to wicd, changed torrent downloader, changed WiFi power saver to disabled, checked effects of UFW on connection.



    System information:



    lspci



    02:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4360 802.11ac Wireless Network Adapter (rev 03)


    rfkill



    ID TYPE      DEVICE        SOFT      HARD
    0 wlan phy0 unblocked unblocked
    1 wlan brcmwl-0 unblocked unblocked
    2 bluetooth hci0 unblocked unblocked


    ifconfig



    wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 192.168.0.27 netmask 255.255.255.0 broadcast 192.168.0.255
    inet6 fe80::1e36:bbff:fe00:62f4 prefixlen 64 scopeid 0x20<link>
    ether 1c:36:bb:00:62:f4 txqueuelen 1000 (Ethernet)
    RX packets 233437 bytes 80035114 (80.0 MB)
    RX errors 0 dropped 1426 overruns 0 frame 12755
    TX packets 97468 bytes 20840255 (20.8 MB)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
    device interrupt 18


    iwconfig



    wlp2s0    IEEE 802.11  ESSID:"###"
    Mode:Managed Frequency:5.5 GHz Access Point: AC:84:C9:23:D2:0F
    Bit Rate=351 Mb/s Tx-Power=200 dBm
    Retry short limit:7 RTS thr:off Fragment thr:off
    Encryption key:off
    Power Management:off
    Link Quality=47/70 Signal level=-63 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0


    Last syslog events (seconds before disconnect) print multiple kernel messages:



    Dec 29 13:02:25 salonik-Macmini kernel: [139898.433983] swapper/0: page allocation failure: order:0, mode:0x480020(GFP_ATOMIC), nodemask=(null)
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.433986] swapper/0 cpuset=/ mems_allowed=0-1023
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434007] CPU: 0 PID: 0 Comm: swapper/0 Tainted: P OE 4.18.0-13-generic #14-Ubuntu
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434008] Hardware name: Apple Inc. Macmini7,1/Mac-35C5E08120C7EEAF, BIOS MM71.88Z.0231.B00.1804091715 04/09/2018
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434010] Call Trace:
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434012] <IRQ>
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434020] dump_stack+0x63/0x83
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434027] warn_alloc.cold.115+0x69/0xfc
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434032] __alloc_pages_slowpath+0xd98/0xde0
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434037] ? tcp_rcv_established+0x57b/0x620
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434042] ? __build_skb+0x2b/0xf0
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434046] __alloc_pages_nodemask+0x263/0x280
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434050] page_frag_alloc+0x121/0x150
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434054] __netdev_alloc_skb+0xa7/0x120
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434111] osl_pktget+0x1d/0x50 [wl]
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434145] dma_txpioloopback+0x7d0/0x15a4 [wl]
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434175] ? dma_txpioloopback+0x2b4/0x15a4 [wl]
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434223] wlc_bmac_recv+0x9b/0x53f [wl]
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434275] ? wlc_intrson+0x1b3/0x1c4 [wl]
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434327] wlc_dpc+0x175/0x26a [wl]
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434378] wl_dpc+0x9e/0x170 [wl]
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434383] tasklet_action_common.isra.19+0x5f/0x110
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434387] tasklet_action+0x22/0x30
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434391] __do_softirq+0xdc/0x2b5
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434395] irq_exit+0xb7/0xc0
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434397] do_IRQ+0x8a/0xd0
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434400] common_interrupt+0xf/0xf
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434402] </IRQ>
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.434405] RIP: 0010:cpuidle_enter_state+0xb9/0x2b0
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435526] Code: ff e8 6b 67 89 ff 80 7d d3 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 d6 01 00 00 31 ff e8 6e 72 8f ff fb 66 0f 1f 44 00 00 $
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435585] RSP: 0018:ffffffff85203e00 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffd7
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435588] RAX: ffff8f83ef222c40 RBX: 00007f3ca47e6e58 RCX: 000000000000001f
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435590] RDX: 00007f3ca47e6e58 RSI: 0000000000000000 RDI: 0000000000000000
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435592] RBP: ffffffff85203e38 R08: 0000fe8184a9b7f8 R09: 0000000000000002
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435594] R10: 00000000ffffffff R11: ffff8f83ef221ac8 R12: 0000000000000001
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435596] R13: ffff8f83ef22cb40 R14: ffffffff85384858 R15: 00007f3ca47e6057
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435601] cpuidle_enter+0x17/0x20
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435604] call_cpuidle+0x23/0x40
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435607] do_idle+0x23a/0x280
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435611] cpu_startup_entry+0x73/0x80
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435616] rest_init+0xae/0xb0
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435620] start_kernel+0x539/0x55a
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435625] x86_64_start_reservations+0x24/0x26
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435628] x86_64_start_kernel+0x74/0x77
    Dec 29 13:02:25 salonik-Macmini kernel: [139898.435631] secondary_startup_64+0xa5/0xb0


    Rebooting is the only solution that temporarily brings the connection back.
    Any ideas what might work?










    share|improve this question







    New contributor




    Norbert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0







      I have tried to find a solution for a very long time but any changes did not improved my WiFi performance.



      System: Mac Mini (late 2014), 18.10, running headless with Kodi login environment



      Issue: WiFi disconnects randomly while downloading a large portion of data from the Internet



      Reproduction: When the PC is downloading w big chunk of data (eg. torrents) it disconnects from the WiFi after few minutes. Normal usage (idle system, updates) does not disconnect from WiFi.



      Steps already applied: changed network manager to wicd, changed torrent downloader, changed WiFi power saver to disabled, checked effects of UFW on connection.



      System information:



      lspci



      02:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4360 802.11ac Wireless Network Adapter (rev 03)


      rfkill



      ID TYPE      DEVICE        SOFT      HARD
      0 wlan phy0 unblocked unblocked
      1 wlan brcmwl-0 unblocked unblocked
      2 bluetooth hci0 unblocked unblocked


      ifconfig



      wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
      inet 192.168.0.27 netmask 255.255.255.0 broadcast 192.168.0.255
      inet6 fe80::1e36:bbff:fe00:62f4 prefixlen 64 scopeid 0x20<link>
      ether 1c:36:bb:00:62:f4 txqueuelen 1000 (Ethernet)
      RX packets 233437 bytes 80035114 (80.0 MB)
      RX errors 0 dropped 1426 overruns 0 frame 12755
      TX packets 97468 bytes 20840255 (20.8 MB)
      TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
      device interrupt 18


      iwconfig



      wlp2s0    IEEE 802.11  ESSID:"###"
      Mode:Managed Frequency:5.5 GHz Access Point: AC:84:C9:23:D2:0F
      Bit Rate=351 Mb/s Tx-Power=200 dBm
      Retry short limit:7 RTS thr:off Fragment thr:off
      Encryption key:off
      Power Management:off
      Link Quality=47/70 Signal level=-63 dBm
      Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
      Tx excessive retries:0 Invalid misc:0 Missed beacon:0


      Last syslog events (seconds before disconnect) print multiple kernel messages:



      Dec 29 13:02:25 salonik-Macmini kernel: [139898.433983] swapper/0: page allocation failure: order:0, mode:0x480020(GFP_ATOMIC), nodemask=(null)
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.433986] swapper/0 cpuset=/ mems_allowed=0-1023
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434007] CPU: 0 PID: 0 Comm: swapper/0 Tainted: P OE 4.18.0-13-generic #14-Ubuntu
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434008] Hardware name: Apple Inc. Macmini7,1/Mac-35C5E08120C7EEAF, BIOS MM71.88Z.0231.B00.1804091715 04/09/2018
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434010] Call Trace:
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434012] <IRQ>
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434020] dump_stack+0x63/0x83
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434027] warn_alloc.cold.115+0x69/0xfc
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434032] __alloc_pages_slowpath+0xd98/0xde0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434037] ? tcp_rcv_established+0x57b/0x620
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434042] ? __build_skb+0x2b/0xf0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434046] __alloc_pages_nodemask+0x263/0x280
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434050] page_frag_alloc+0x121/0x150
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434054] __netdev_alloc_skb+0xa7/0x120
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434111] osl_pktget+0x1d/0x50 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434145] dma_txpioloopback+0x7d0/0x15a4 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434175] ? dma_txpioloopback+0x2b4/0x15a4 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434223] wlc_bmac_recv+0x9b/0x53f [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434275] ? wlc_intrson+0x1b3/0x1c4 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434327] wlc_dpc+0x175/0x26a [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434378] wl_dpc+0x9e/0x170 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434383] tasklet_action_common.isra.19+0x5f/0x110
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434387] tasklet_action+0x22/0x30
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434391] __do_softirq+0xdc/0x2b5
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434395] irq_exit+0xb7/0xc0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434397] do_IRQ+0x8a/0xd0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434400] common_interrupt+0xf/0xf
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434402] </IRQ>
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434405] RIP: 0010:cpuidle_enter_state+0xb9/0x2b0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435526] Code: ff e8 6b 67 89 ff 80 7d d3 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 d6 01 00 00 31 ff e8 6e 72 8f ff fb 66 0f 1f 44 00 00 $
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435585] RSP: 0018:ffffffff85203e00 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffd7
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435588] RAX: ffff8f83ef222c40 RBX: 00007f3ca47e6e58 RCX: 000000000000001f
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435590] RDX: 00007f3ca47e6e58 RSI: 0000000000000000 RDI: 0000000000000000
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435592] RBP: ffffffff85203e38 R08: 0000fe8184a9b7f8 R09: 0000000000000002
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435594] R10: 00000000ffffffff R11: ffff8f83ef221ac8 R12: 0000000000000001
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435596] R13: ffff8f83ef22cb40 R14: ffffffff85384858 R15: 00007f3ca47e6057
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435601] cpuidle_enter+0x17/0x20
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435604] call_cpuidle+0x23/0x40
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435607] do_idle+0x23a/0x280
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435611] cpu_startup_entry+0x73/0x80
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435616] rest_init+0xae/0xb0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435620] start_kernel+0x539/0x55a
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435625] x86_64_start_reservations+0x24/0x26
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435628] x86_64_start_kernel+0x74/0x77
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435631] secondary_startup_64+0xa5/0xb0


      Rebooting is the only solution that temporarily brings the connection back.
      Any ideas what might work?










      share|improve this question







      New contributor




      Norbert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I have tried to find a solution for a very long time but any changes did not improved my WiFi performance.



      System: Mac Mini (late 2014), 18.10, running headless with Kodi login environment



      Issue: WiFi disconnects randomly while downloading a large portion of data from the Internet



      Reproduction: When the PC is downloading w big chunk of data (eg. torrents) it disconnects from the WiFi after few minutes. Normal usage (idle system, updates) does not disconnect from WiFi.



      Steps already applied: changed network manager to wicd, changed torrent downloader, changed WiFi power saver to disabled, checked effects of UFW on connection.



      System information:



      lspci



      02:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4360 802.11ac Wireless Network Adapter (rev 03)


      rfkill



      ID TYPE      DEVICE        SOFT      HARD
      0 wlan phy0 unblocked unblocked
      1 wlan brcmwl-0 unblocked unblocked
      2 bluetooth hci0 unblocked unblocked


      ifconfig



      wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
      inet 192.168.0.27 netmask 255.255.255.0 broadcast 192.168.0.255
      inet6 fe80::1e36:bbff:fe00:62f4 prefixlen 64 scopeid 0x20<link>
      ether 1c:36:bb:00:62:f4 txqueuelen 1000 (Ethernet)
      RX packets 233437 bytes 80035114 (80.0 MB)
      RX errors 0 dropped 1426 overruns 0 frame 12755
      TX packets 97468 bytes 20840255 (20.8 MB)
      TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
      device interrupt 18


      iwconfig



      wlp2s0    IEEE 802.11  ESSID:"###"
      Mode:Managed Frequency:5.5 GHz Access Point: AC:84:C9:23:D2:0F
      Bit Rate=351 Mb/s Tx-Power=200 dBm
      Retry short limit:7 RTS thr:off Fragment thr:off
      Encryption key:off
      Power Management:off
      Link Quality=47/70 Signal level=-63 dBm
      Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
      Tx excessive retries:0 Invalid misc:0 Missed beacon:0


      Last syslog events (seconds before disconnect) print multiple kernel messages:



      Dec 29 13:02:25 salonik-Macmini kernel: [139898.433983] swapper/0: page allocation failure: order:0, mode:0x480020(GFP_ATOMIC), nodemask=(null)
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.433986] swapper/0 cpuset=/ mems_allowed=0-1023
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434007] CPU: 0 PID: 0 Comm: swapper/0 Tainted: P OE 4.18.0-13-generic #14-Ubuntu
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434008] Hardware name: Apple Inc. Macmini7,1/Mac-35C5E08120C7EEAF, BIOS MM71.88Z.0231.B00.1804091715 04/09/2018
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434010] Call Trace:
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434012] <IRQ>
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434020] dump_stack+0x63/0x83
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434027] warn_alloc.cold.115+0x69/0xfc
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434032] __alloc_pages_slowpath+0xd98/0xde0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434037] ? tcp_rcv_established+0x57b/0x620
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434042] ? __build_skb+0x2b/0xf0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434046] __alloc_pages_nodemask+0x263/0x280
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434050] page_frag_alloc+0x121/0x150
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434054] __netdev_alloc_skb+0xa7/0x120
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434111] osl_pktget+0x1d/0x50 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434145] dma_txpioloopback+0x7d0/0x15a4 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434175] ? dma_txpioloopback+0x2b4/0x15a4 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434223] wlc_bmac_recv+0x9b/0x53f [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434275] ? wlc_intrson+0x1b3/0x1c4 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434327] wlc_dpc+0x175/0x26a [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434378] wl_dpc+0x9e/0x170 [wl]
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434383] tasklet_action_common.isra.19+0x5f/0x110
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434387] tasklet_action+0x22/0x30
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434391] __do_softirq+0xdc/0x2b5
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434395] irq_exit+0xb7/0xc0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434397] do_IRQ+0x8a/0xd0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434400] common_interrupt+0xf/0xf
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434402] </IRQ>
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.434405] RIP: 0010:cpuidle_enter_state+0xb9/0x2b0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435526] Code: ff e8 6b 67 89 ff 80 7d d3 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 d6 01 00 00 31 ff e8 6e 72 8f ff fb 66 0f 1f 44 00 00 $
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435585] RSP: 0018:ffffffff85203e00 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffd7
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435588] RAX: ffff8f83ef222c40 RBX: 00007f3ca47e6e58 RCX: 000000000000001f
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435590] RDX: 00007f3ca47e6e58 RSI: 0000000000000000 RDI: 0000000000000000
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435592] RBP: ffffffff85203e38 R08: 0000fe8184a9b7f8 R09: 0000000000000002
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435594] R10: 00000000ffffffff R11: ffff8f83ef221ac8 R12: 0000000000000001
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435596] R13: ffff8f83ef22cb40 R14: ffffffff85384858 R15: 00007f3ca47e6057
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435601] cpuidle_enter+0x17/0x20
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435604] call_cpuidle+0x23/0x40
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435607] do_idle+0x23a/0x280
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435611] cpu_startup_entry+0x73/0x80
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435616] rest_init+0xae/0xb0
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435620] start_kernel+0x539/0x55a
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435625] x86_64_start_reservations+0x24/0x26
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435628] x86_64_start_kernel+0x74/0x77
      Dec 29 13:02:25 salonik-Macmini kernel: [139898.435631] secondary_startup_64+0xa5/0xb0


      Rebooting is the only solution that temporarily brings the connection back.
      Any ideas what might work?







      networking wireless kernel mac wicd






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