FS#67970 - Upgrading kernel from 5.7.12.arch1-1 to 5.8.1.arch1-1 or newer break 1-wire (w1) subsystem

Attached to Project: Arch Linux
Opened by Janne Pettersson (wincc) - Tuesday, 22 September 2020, 17:45 GMT
Last edited by freswa (frederik) - Monday, 05 October 2020, 12:39 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To No-one
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description: Upgrading kernel from 5.7.12-arch1-1 to 5.8.1-arch1-1 or newer break 1-wire (w1) subsystem ( no w1_slave file found and a "folder" missing )
first found this in my proxmox vm, then found that the same problem exists in my workstation


Additional info:
* package version(s)
* config and/or log files etc.
Temp Sensor Thermal Probe DS18B20 and Adapter USB 1wire (DS9490R) used in workstation test
* link to upstream bug report, if any

Steps to reproduce: Upgrading kernel from 5.7.12.arch1-1 to 5.8.1.arch1-1
   inxi.txt (2.5 KiB)
   lsusb.txt (0.8 KiB)
   a_linux-5.7.12.png (28.3 KiB)
   b_linux-5.7.12.png (49.4 KiB)
   c_linux-5.8.1-arch1-1.png (21.5 KiB)
   d_linux-5.8.1-arch1-1.png (38.4 KiB)
This task depends upon

Closed by  freswa (frederik)
Monday, 05 October 2020, 12:39 GMT
Reason for closing:  Upstream
Additional comments about closing:  Please report this upstream. Thank you
Comment by Janne Pettersson (wincc) - Thursday, 01 October 2020, 07:59 GMT
It seems like the "internal slave" 81.000000388f57" in DS9490R does not show up in later kernels, and if I try to open /sys/bus/w1/devices/w1_bus_master1, Thunar hangs and I have to make a "hard reboot"

I need some input what to test.
   attach_master_and_slave_to_ke... (60.6 KiB)
   attach_master_and_slave_to_ke... (77.5 KiB)

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