малинка (разберри пи), вайфай
Падает что-то где-то рядом с ви-фи стеком.
визуально это выглядит как "воткнули усб-свисток, он подмигнул, прошло примерно 4 пинга, после чего ви-фи не отзывается до перезагрузки или перетыкания"

Кто виноват и что делать?

[ 474.702270] usb 1-1.3.3: new high-speed USB device number 39 using dwc_otg
[ 474.804305] usb 1-1.3.3: New USB device found, idVendor=0bda, idProduct=8176
[ 474.804336] usb 1-1.3.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 474.804353] usb 1-1.3.3: Manufacturer: Realtek
[ 474.804368] usb 1-1.3.3: SerialNumber: 00e04c000001
[ 475.721528] usb 1-1.3: USB disconnect, device number 37
[ 475.721559] usb 1-1.3.3: USB disconnect, device number 39
[ 475.842343] ------------[ cut here ]------------
[ 475.842408] WARNING: at fs/proc/generic.c:849 remove_proc_entry+0x280/0x2a0()
[ 475.842423] remove_proc_entry: removing non-empty directory 'rtl819xC/wlan0', leaking at least 'ampdu_enable'
[ 475.842432] Modules linked in: cpufreq_stats snd_bcm2835 snd_pcm snd_seq snd_timer snd_seq_device snd snd_page_alloc spidev leds_gpio led_class 8192cu spi_bcm2708 i2c_bcm2708
[ 475.842530] [] (unwind_backtrace+0x0/0xf0) from [] (warn_slowpath_common+0x4c/0x64)
[ 475.842561] [] (warn_slowpath_common+0x4c/0x64) from [] (warn_slowpath_fmt+0x30/0x40)
[ 475.842588] [] (warn_slowpath_fmt+0x30/0x40) from [] (remove_proc_entry+0x280/0x2a0)
[ 475.843031] [] (remove_proc_entry+0x280/0x2a0) from [] (rtw_proc_remove_one+0xf4/0x188 [8192cu])
[ 475.843578] [] (rtw_proc_remove_one+0xf4/0x188 [8192cu]) from [] (rtw_dev_remove+0x94/0x134 [8192cu])
[ 475.843882] [] (rtw_dev_remove+0x94/0x134 [8192cu]) from [] (usb_unbind_interface+0x48/0x108)
[ 475.843927] [] (usb_unbind_interface+0x48/0x108) from [] (__device_release_driver+0x58/0xb0)
[ 475.844011] [] (__device_release_driver+0x58/0xb0) from [] (device_release_driver+0x1c/0x28)
[ 475.844049] [] (device_release_driver+0x1c/0x28) from [] (bus_remove_device+0xc4/0xe4)
[ 475.844106] [] (bus_remove_device+0xc4/0xe4) from [] (device_del+0xf8/0x17c)
[ 475.844139] [] (device_del+0xf8/0x17c) from [] (usb_disable_device+0xa0/0x1c8)
[ 475.844169] [] (usb_disable_device+0xa0/0x1c8) from [] (usb_disconnect+0x7c/0x124)
[ 475.844194] [] (usb_disconnect+0x7c/0x124) from [] (usb_disconnect+0x64/0x124)
[ 475.844216] [] (usb_disconnect+0x64/0x124) from [] (hub_thread+0x31c/0x10e0)
[ 475.844254] [] (hub_thread+0x31c/0x10e0) from [] (kthread+0x88/0x94)
[ 475.844294] [] (kthread+0x88/0x94) from [] (kernel_thread_exit+0x0/0x8)
[ 475.844310] ---[ end trace 25619a0b5fb48a1f ]---