Acabei de atualizar o Linux Mint de 18.3 para 19, e estou tendo um uso muito alto de cpu do systemd-udevd
top - 14:00:58 up 14:12, 1 user, load average: 3.95, 3.37, 3.02
Tasks: 241 total, 2 running, 169 sleeping, 0 stopped, 5 zombie
%Cpu(s): 53.2 us, 16.2 sy, 0.0 ni, 26.9 id, 3.5 wa, 0.0 hi, 0.2 si, 0.0 st
KiB Mem : 5896176 total, 2758912 free, 1764836 used, 1372428 buff/cache
KiB Swap: 2110460 total, 2110460 free, 0 used. 3692664 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
416 root 20 0 146200 103004 3120 R 100.0 1.7 18:07.86 systemd-udevd
472 root 20 0 45896 4288 3200 S 31.2 0.1 5:13.71 systemd-udevd
Eu estava seguindo outra postagem para solucionar o problema, o que me levou a udevadm monitor , que imprime as seguintes linhas rapidamente:
KERNEL[960.746245] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
UDEV [960.746652] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.754483] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.754594] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
UDEV [960.755530] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.763493] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.763704] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
UDEV [960.764296] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.772478] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.772726] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
UDEV [960.773120] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.781234] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.781454] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
UDEV [960.781833] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.789454] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.789592] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
UDEV [960.790145] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.797835] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.797962] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
UDEV [960.798364] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.806149] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
KERNEL[960.806354] unbind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
UDEV [960.806752] bind /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb)
Aqui está o lspci para esse controlador:
$ lspci -vvs1a.0
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) (prog-if 20 [EHCI])
Subsystem: Dell 5 Series/3400 Series Chipset USB2 Enhanced Host Controller
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f0807000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
E lsusb:
$ lsusb
Bus 002 Device 004: ID 8086:0188 Intel Corp. WiMAX Connection 2400m
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0c45:641d Microdia 1.3 MPixel Integrated Webcam
Bus 001 Device 010: ID 413c:8160 Dell Computer Corp. Wireless 365 Bluetooth
Bus 001 Device 007: ID 413c:8162 Dell Computer Corp. Integrated Touchpad [Synaptics]
Bus 001 Device 005: ID 413c:8161 Dell Computer Corp. Integrated Keyboard
Bus 001 Device 003: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Como outras pessoas relataram um problema com bluez . Como posso resolver este problema?