netdev - Re: [PATCH net-next v2 0/7] ethtool: allow dumping policies to user space

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Message-ID: <20201007085247.g4vb5kate74s45eo@lion.mk-sys.cz>
Date:   Wed, 7 Oct 2020 10:52:47 +0200
From:   Michal Kubecek <mkubecek@...e.cz>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Johannes Berg <johannes@...solutions.net>,
        David Miller <davem@...emloft.net>, kuba@...nel.org,
        netdev@...r.kernel.org, kernel-team@...com, jiri@...nulli.us,
        andrew@...n.ch, Saeed Mahameed <saeedm@...dia.com>
Subject: Re: [PATCH net-next v2 0/7] ethtool: allow dumping policies to user
 space

On Wed, Oct 07, 2020 at 11:24:37AM +0300, Leon Romanovsky wrote:
> Yes, it fixed KASAN, but it we got new failure after that.
> 
> 11:07:51 player_id: 1 shell.py:62 [LinuxEthtoolAgent] DEBUG : running command(/opt/mellanox/ethtool/sbin/ethtool --set-channels eth2 combined 3) with pid: 13409
> 11:07:51 player_id: 1 protocol.py:605 [OpSetChannels] ERROR : RC:1, STDERR:
> netlink error: Unknown attribute type (offset 36)
> netlink error: Invalid argument

For the record, when reporting issues like this, it's useful to enable
pretty printing and showing the messages with "--debug 0x12", e.g.

  ethtool --debug 0x12 --setchannels eth2 combined 3

That will show both requests and replies and will also highlight the
offending attribute.

Michal