I attempted to reproduce this issue using
DOCA_1.5.5_BSP_3.9.10_Ubuntu_20.04-5.25-06-LTS.prod.bfb (which includes
the 5.4.0-1105-bluefield kernel) and was unable to reproduce the bug.
ubuntu@10-241-5-159:~$ uname -a
Linux 10-241-5-159.maas 5.4.0-1105-bluefield #112-Ubuntu SMP PREEMPT Thu Apr 24
10:16:51 UTC 2025 aarch64 aarch64 aarch64 GNU/Linux
ubuntu@10-241-5-159:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: tmfifo_net0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
UP group default qlen 1000
link/ether 00:1a:ca:ff:ff:01 brd ff:ff:ff:ff:ff:ff
inet 192.168.100.2/30 brd 192.168.100.3 scope global noprefixroute
tmfifo_net0
valid_lft forever preferred_lft forever
inet6 fe80::21a:caff:feff:ff01/64 scope link
valid_lft forever preferred_lft forever
3: oob_net0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP
group default qlen 1000
link/ether b8:ce:f6:d0:94:ba brd ff:ff:ff:ff:ff:ff
inet 10.241.5.159/24 brd 10.241.5.255 scope global dynamic noprefixroute
oob_net0
valid_lft 463sec preferred_lft 463sec
inet6 fe80::bace:f6ff:fed0:94ba/64 scope link
valid_lft forever preferred_lft forever
ubuntu@10-241-5-159:~$ sudo i2cdetect 1
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-1.
I will probe address range 0x03-0x77.
Continue? [Y/n] y
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
ubuntu@10-241-5-159:~$
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https://bugs.launchpad.net/bugs/2140758
Title:
oob interface has gone after upgrading the linux-bluefield
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