Randomly lost connection with BMS

[mvincm]

Hello,

Some basic info:

• RPi 3B
• VenusOS 3.41
• Can adapter via Canable USB-C do CAN (isolated)

root@raspberrypi2:~# lsusb
Bus 001 Device 009: ID 0403:6015 Future Technology Devices International, Ltd Bridge(I2C/SPI/UART/FIFO)
Bus 001 Device 007: ID 0403:6015 Future Technology Devices International, Ltd Bridge(I2C/SPI/UART/FIFO)
Bus 001 Device 005: ID 0403:6015 Future Technology Devices International, Ltd Bridge(I2C/SPI/UART/FIFO)
Bus 001 Device 010: ID 0403:6015 Future Technology Devices International, Ltd Bridge(I2C/SPI/UART/FIFO)
Bus 001 Device 008: ID 0c72:000c PEAK System PCAN-USB
Bus 001 Device 006: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I have notice some random drops of connection with BMS via can board. VenusOS will stack after that and start to work very very slowly. I can find in logs two suspicies parts. Any idea? Any help please. Thnaks in adavanced.

boot time:

[ 4.844786] usb 1-1.2: new high-speed USB device number 4 using dwc_otg
[ 4.976254] usb 1-1.2: New USB device found, idVendor=05e3, idProduct=0608, bcdDevice=77.64
[ 4.984648] usb 1-1.2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 4.992166] usb 1-1.2: Product: USB2.0 Hub
[ 4.997331] hub 1-1.2:1.0: USB hub found
[ 5.001590] hub 1-1.2:1.0: 4 ports detected
[ 5.012396] udevd[167]: starting version 3.2.9
[ 5.035194] random: udevd: uninitialized urandom read (16 bytes read)
[ 5.042819] random: udevd: uninitialized urandom read (16 bytes read)
[ 5.049574] random: udevd: uninitialized urandom read (16 bytes read)
[ 5.101838] udevd[167]: invalid key/value pair in file /etc/udev/rules.d/VeCanSetup.rules on line 14, starting at character 32 (',')
[ 5.124871] usb 1-1.3: new full-speed USB device number 5 using dwc_otg
[ 5.128596] udevd[168]: starting eudev-3.2.9

and when starting to hang up:

[ 184.155590] w1_master_driver w1_bus_master1: w1_search: max_slave_count 64 reached, will continue next search.
[ 1068.892039] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.897830] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.903566] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.909215] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.914941] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.920720] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.926423] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.932106] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.937846] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1068.943663] peak_usb 1-1.2.2:1.0 can0: Rx urb aborted (-71)
[ 1069.844463] usb 1-1.2: USB disconnect, device number 4
[ 1069.849723] usb 1-1.2.1: USB disconnect, device number 6
[ 1069.855120] pl2303 ttyUSB4: pl2303_read_int_callback - usb_submit_urb failed with result -19
[ 1069.864313] pl2303 ttyUSB4: error sending break = -19
[ 1069.875575] pl2303 ttyUSB4: pl2303 converter now disconnected from ttyUSB4