Re: EVL: Kernel WARNING

[Philippe Gerum <rpm@xenomai.org>]

Hannes Diethelm <hannes.diethelm@gmail.com> writes:

> Am 04.07.26 um 20:05 schrieb Hannes Diethelm:
>> Hi
>> After updating to the lastest v6.12.y-cip-evl-rebase, I have a
>> kernel WARNING in the igb driver if I use my oob-net-icmp.c (Patch
>> submitted)
>> Exact commits good...bad:
>> linux-evl efed612...55591d4
>> libevl 3e5577d..f7b7df4
>> Regards
>> Hannes
>> ...
>
> Update:
>
> - It fails after ~240...253 packages. After that, no ping response is received any more
> - I use "sudo ./oob-net-ping -i enp7s0 -a 192.168.122.1 -w 1000" so it fails faster
> - Also without -w 1000, it fails, you just have to wait longer
> - With an I350 card, I get the kernel WARNING
> - In a VM with an e1000e, I don't get a warning but still after ~250 packages, no response is
>   received any more
> - After evl net -di / evl net -ei, it works for another ~250 packages until it fails again
> - With the good version, I tested ~1M packages, all fine, max 60 us response time on the real PC

Ok, I can reproduce this easily with oob-net-ping as you described. This
also happens with an (arm-based) FEC driver, which confirms that this is
a generic issue - maybe in the packet protocol module? - not a driver
specific bug. Working on it.

-- 
Philippe.