[Bug 1767968] [NEW] systemd-udev cause high cpu load after upgrade to bionic

Thu Aug 6 21:23:40 UTC 2020

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After upgraded from xenial to bionic (kernel 4.15.0-20) systemd-udevd
runs with high cpu load in 2 instances (50%, 15%) on Dell Precision
M6500 when wlan switch will be enabled.

With xenial this problem did't happen and Dell bluetooth & wifi (b43)
are working.

After some research I found that /var/log/syslog gets filled with a lot
of messages (see log sample below).

If I modify /lib/udev/rules.d/97-hid2hci.rules (disable rule for
413c:8154, 413c:8158, 413c:8162), restart udev, turn wifi off/on by
hardware switch, the messages go away but the bluetooth adapter will be
not enabled anymore. It seems that udev is running in a loop.

My modification for the rule just was (just as proof):

--- before ---
ATTR{bInterfaceClass}=="03", ATTR{bInterfaceSubClass}=="01", ATTR{bInterfaceProtocol}=="02", \
  ATTRS{bDeviceClass}=="00", ATTRS{idVendor}=="413c", ATTRS{bmAttributes}=="e0", \
  RUN+="hid2hci --method=dell --devpath=%p", ENV{HID2HCI_SWITCH}="1"
--- end before ---

--- after ---
ATTR{bInterfaceClass}=="03", ATTR{bInterfaceSubClass}=="01", ATTR{bInterfaceProtocol}=="02", \
  ATTRS{bDeviceClass}=="00", ATTRS{idVendor}=="413c", ATTRS{bmAttributes}=="e0", \
  RUN+="/bin/sh", ENV{HID2HCI_SWITCH}="1"
--- end after ---

If you need some experiment or testing I can do (compiling software is
not a problem, I'm a developer).

lsusb:
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
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 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 058: ID 413c:8162 Dell Computer Corp. Integrated Touchpad [Synaptics]
Bus 001 Device 057: ID 413c:8161 Dell Computer Corp. Integrated Keyboard
Bus 001 Device 056: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 001 Device 004: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor
Bus 001 Device 003: ID 05ca:1815 Ricoh Co., Ltd 
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

lspci:
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
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 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 058: ID 413c:8162 Dell Computer Corp. Integrated Touchpad [Synaptics]
Bus 001 Device 057: ID 413c:8161 Dell Computer Corp. Integrated Keyboard
Bus 001 Device 056: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 001 Device 004: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor
Bus 001 Device 003: ID 05ca:1815 Ricoh Co., Ltd 
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
root at precision:~# lspci
00:00.0 Host bridge: Intel Corporation Core Processor DMI (rev 11)
00:03.0 PCI bridge: Intel Corporation Core Processor PCI Express Root Port 1 (rev 11)
00:08.0 System peripheral: Intel Corporation Core Processor System Management Registers (rev 11)
00:08.1 System peripheral: Intel Corporation Core Processor Semaphore and Scratchpad Registers (rev 11)
00:08.2 System peripheral: Intel Corporation Core Processor System Control and Status Registers (rev 11)
00:08.3 System peripheral: Intel Corporation Core Processor Miscellaneous Registers (rev 11)
00:10.0 System peripheral: Intel Corporation Core Processor QPI Link (rev 11)
00:10.1 System peripheral: Intel Corporation Core Processor QPI Routing and Protocol Registers (rev 11)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05)
00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05)
00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 05)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05)
00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 05)
00:1c.6 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 7 (rev 05)
00:1c.7 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 8 (rev 05)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation PM55 Chipset LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation G92GLM [Quadro FX 2800M] (rev a2)
03:01.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller
03:01.1 FireWire (IEEE 1394): Texas Instruments PCIxx12 OHCI Compliant IEEE 1394 Host Controller
03:01.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD)
03:01.3 SD Host controller: Texas Instruments PCIxx12 SDA Standard Compliant SD Host Controller
09:00.0 Ethernet controller: Broadcom Limited NetXtreme BCM5761e Gigabit Ethernet PCIe (rev 10)
0c:00.0 Network controller: Broadcom Limited BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01)
11:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03)
3f:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-Core Registers (rev 04)
3f:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 04)
3f:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 04)
3f:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 04)
3f:03.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller (rev 04)
3f:03.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Target Address Decoder (rev 04)
3f:03.4 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Test Registers (rev 04)
3f:04.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Control Registers (rev 04)
3f:04.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Address Registers (rev 04)
3f:04.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Rank Registers (rev 04)
3f:04.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Thermal Control Registers (rev 04)
3f:05.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Control Registers (rev 04)
3f:05.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Address Registers (rev 04)
3f:05.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Rank Registers (rev 04)
3f:05.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Thermal Control Registers (rev 04)

/var/log/syslog:
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.1/1-1.6.1:1.0/0003:413C:8161.0012
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.1/1-1.6.1:1.0
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.1
Apr 30 10:27:40 precision systemd-udevd[28658]: Process 'hid2hci --method=dell --devpath=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0' failed with exit code 1.
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0/0003:413C:8162.0013
Apr 30 10:27:40 precision systemd-udevd[28658]: Process 'hid2hci --method=dell --devpath=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0' failed with exit code 1.
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0/0003:413C:8162.0013
Apr 30 10:27:40 precision systemd-udevd[28658]: Process 'hid2hci --method=dell --devpath=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0' failed with exit code 1.
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
Apr 30 10:27:40 precision systemd-udevd[28658]: Process 'hid2hci --method=dell --devpath=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0' failed with exit code 1.
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
Apr 30 10:27:40 precision systemd-udevd[28658]: Process 'hid2hci --method=dell --devpath=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0' failed with exit code 1.
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
Apr 30 10:27:40 precision systemd-udevd[28658]: Process 'hid2hci --method=dell --devpath=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0' failed with exit code 1.
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
Apr 30 10:27:40 precision systemd-udevd[28658]: Process 'hid2hci --method=dell --devpath=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0' failed with exit code 1.
Apr 30 10:27:40 precision upowerd[2464]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
Apr 30 10:27:41 precision systemd-udevd[28658]: Process 'hid2hci --method=dell --devpath=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0' failed with exit code 1.
Apr 30 10:27:41 precision upowerd[2464]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0

** Affects: udev
     Importance: High
         Status: Confirmed

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: Confirmed

** Affects: bluez (Debian)
     Importance: Unknown
         Status: New

** Tags: udev
-- 
systemd-udev cause high cpu load after upgrade to bionic
https://bugs.launchpad.net/bugs/1767968
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