linux-kernel - Re: Latest Git kernel: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for device

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Date:   Sun, 2 Feb 2020 09:19:08 +0100
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Christian Zigotzky <chzigotzky@...osoft.de>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     DTML <devicetree@...r.kernel.org>,
        Darren Stevens <darren@...vens-zone.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linuxppc-dev@...abs.org, "contact@...on.com" <contact@...on.com>,
        "R.T.Dickinson" <rtd2@...a.co.nz>, Christoph Hellwig <hch@....de>
Subject: Re: Latest Git kernel: avahi-daemon[2410]: ioctl(): Inappropriate
 ioctl for device

Hello,

Le 02/02/2020 à 01:08, Christian Zigotzky a écrit :
> Hello,
> 
> We regularly compile and test Linux kernels every day during the merge 
> window. Since Thuesday we have very high CPU loads because of the avahi 
> daemon on our desktop Linux systems (Ubuntu, Debian etc).
> 
> Error message: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for device

Do you know which ioctl, on which device ?
Can you take a trace of running avahi-daemon with 'strace' ?

Can you bisect ?

Christophe