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?






networking wireless kernel mac wicd







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?






    networking wireless kernel mac wicd







    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?






      networking wireless kernel mac wicd







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      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




      networking wireless kernel mac wicd






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      asked Dec 29 '18 at 20:27









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