Hi Alessio, It seems there is an issue with your setup that is causing I2C bus 5 to not be available. I can help debug offline.
I installed and booted the prebuilt noble and jammy .deb packages from the release PPA and verified the test steps work as expected. Also checked the source code and confirmed the I2C changes have been applied correctly. root@bu-lab102-oob:~# uname -r 6.8.0-1032-bluefield root@bu-lab102-oob:~# ipmitool lan print ... IP Address Source : DHCP Address IP Address : 192.168.50.3 Subnet Mask : 255.255.255.0 MAC Address : a0:88:c2:0e:88:13 Default Gateway IP : 192.168.50.1 Default Gateway MAC : 00:00:00:00:00:00 ... root@bu-lab102-oob:~# systemctl stop mlx_ipmid root@bu-lab102-oob:~# systemctl stop set_emu_param root@bu-lab102-oob:~# modprobe -r ipmb_host root@bu-lab102-oob:~# modprobe -r ipmb_dev_int root@bu-lab102-oob:~# i2cget -y 5 0x20 0x00 s 0x00 0x40 0x00 0x00 0x0c 0x2d 0xcc 0x9b 0xc0 0x00 0x00 0x60 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 root@bu-lab102-oob:~# bffamily Moonraker root@bu-lab102-oob:~# modinfo i2c-mlxbf | grep vermagic vermagic: 6.8.0-1032-bluefield SMP preempt mod_unload modversions aarch64 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2165146 Title: i2c-mlxbf: corrupted slave address in read phase To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2165146/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
