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From: Arnd Bergmann <arnd@arndb.de>
To: Christian Zigotzky <chzigotzky@xenosoft.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Jakub Kicinski <kuba@kernel.org>,
	Christophe Leroy <christophe.leroy@c-s.fr>,
	DTML <devicetree@vger.kernel.org>,
	Darren Stevens <darren@stevens-zone.net>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linuxppc-dev@ozlabs.org, "contact@a-eon.com" <contact@a-eon.com>,
	"R.T.Dickinson" <rtd2@xtra.co.nz>, Christoph Hellwig <hch@lst.de>,
	mad skateman <madskateman@gmail.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	Christian Zigotzky <info@xenosoft.de>
Subject: Re: Latest Git kernel: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for device
Date: Fri, 7 Feb 2020 17:08:06 +0000	[thread overview]
Message-ID: <CAK8P3a39L5i4aEbKe9CiW6unbioL=T8GqXC007mXxUu+_j84FA@mail.gmail.com> (raw)
In-Reply-To: <42888ad2-71e0-6d03-ddff-3de6f0ee5d43@xenosoft.de>

On Fri, Feb 7, 2020 at 3:34 PM Christian Zigotzky
<chzigotzky@xenosoft.de> wrote:
>
> Hello Arnd,
>
> We regularly compile and test Linux kernels every day during the merge
> window. Since Thursday last week we have very high CPU usage because of
> the avahi daemon on our desktop Linux systems (Ubuntu, Debian etc). The
> avahi daemon produces a lot of the following log message. This generates
> high CPU usage.
>
> Error message: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for device
>
> strace /usr/sbin/avahi-daemon:
>

Thanks a lot for the detailed analysis, with this I immediately saw
what went wrong in my
original commit and I sent you a fix. Please test to ensure that this
correctly addresses
the problem.

        Arnd

WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: Christian Zigotzky <chzigotzky@xenosoft.de>
Cc: DTML <devicetree@vger.kernel.org>,
	Darren Stevens <darren@stevens-zone.net>,
	mad skateman <madskateman@gmail.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linuxppc-dev@ozlabs.org, "contact@a-eon.com" <contact@a-eon.com>,
	"R.T.Dickinson" <rtd2@xtra.co.nz>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	Jakub Kicinski <kuba@kernel.org>, Christoph Hellwig <hch@lst.de>,
	Christian Zigotzky <info@xenosoft.de>
Subject: Re: Latest Git kernel: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for device
Date: Fri, 7 Feb 2020 17:08:06 +0000	[thread overview]
Message-ID: <CAK8P3a39L5i4aEbKe9CiW6unbioL=T8GqXC007mXxUu+_j84FA@mail.gmail.com> (raw)
In-Reply-To: <42888ad2-71e0-6d03-ddff-3de6f0ee5d43@xenosoft.de>

On Fri, Feb 7, 2020 at 3:34 PM Christian Zigotzky
<chzigotzky@xenosoft.de> wrote:
>
> Hello Arnd,
>
> We regularly compile and test Linux kernels every day during the merge
> window. Since Thursday last week we have very high CPU usage because of
> the avahi daemon on our desktop Linux systems (Ubuntu, Debian etc). The
> avahi daemon produces a lot of the following log message. This generates
> high CPU usage.
>
> Error message: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for device
>
> strace /usr/sbin/avahi-daemon:
>

Thanks a lot for the detailed analysis, with this I immediately saw
what went wrong in my
original commit and I sent you a fix. Please test to ensure that this
correctly addresses
the problem.

        Arnd

  reply	other threads:[~2020-02-07 17:08 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-26 11:52 [PATCH] of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc Michael Ellerman
2020-01-26 11:52 ` Michael Ellerman
2020-01-27  7:22 ` Ulf Hansson
2020-01-27  7:22   ` Ulf Hansson
2020-01-31 10:40   ` Michael Ellerman
2020-01-31 10:40     ` Michael Ellerman
2020-02-02  0:08   ` Latest Git kernel: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for device Christian Zigotzky
2020-02-02  0:08     ` Christian Zigotzky
2020-02-02  4:37     ` Randy Dunlap
2020-02-02  4:37       ` Randy Dunlap
2020-02-02  8:19     ` Christophe Leroy
2020-02-02 15:02       ` Christian Zigotzky
2020-02-03 17:53         ` Jakub Kicinski
2020-02-03 17:53           ` Jakub Kicinski
2020-02-05 13:03           ` Christian Zigotzky
2020-02-05 13:03             ` Christian Zigotzky
2020-02-05 14:36           ` Christian Zigotzky
2020-02-06  4:35             ` Michael Ellerman
2020-02-06  4:35               ` Michael Ellerman
2020-02-06 14:28               ` Christian Zigotzky
2020-02-06 14:28                 ` Christian Zigotzky
2020-02-08 12:36                 ` Michael Ellerman
2020-02-08 12:36                   ` Michael Ellerman
2020-02-07 14:34               ` Christian Zigotzky
2020-02-07 14:34                 ` Christian Zigotzky
2020-02-07 17:08                 ` Arnd Bergmann [this message]
2020-02-07 17:08                   ` Arnd Bergmann
2020-02-08  6:59                   ` Christian Zigotzky
2020-02-08  6:59                     ` Christian Zigotzky
2020-02-08 16:08                     ` Christian Zigotzky
2020-02-08 16:08                       ` Christian Zigotzky
2020-01-27 17:30 ` [PATCH] of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc Frank Rowand
2020-01-27 17:30   ` Frank Rowand
2020-01-28 14:26 ` Rob Herring
2020-01-28 14:26   ` Rob Herring
2020-01-31 10:40   ` Michael Ellerman
2020-01-31 10:40     ` Michael Ellerman

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