linux-kernel - Re: Kernel 2.6.30 and udevd problem

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Date:	Sun, 28 Jun 2009 14:37:00 +0200
From:	Alberto Gonzalez <alberto6674@...il.com>
To:	Kay Sievers <kay.sievers@...y.org>
Cc:	Alberto Gonzalez <alberto6674@...il.com>,
	linux-kernel@...r.kernel.org, linux-hotplug@...r.kernel.org
Subject: Re: Kernel 2.6.30 and udevd problem

On Sunday 28 June 2009 12:37:28 Kay Sievers wrote:
> On Sun, Jun 28, 2009 at 08:21, Alberto Gonzalez<alberto6674@...il.com> 
wrote:
> > I have recently upgraded my kernel to 2.6.30 and I've noticed that at
> > some point (randomly), udevd would start using a lot of CPU time. Killing
> > the process and starting it with --debug option prints these messages
> > when the problem starts:
> >
> > [22652] event_queue_insert: seq 168515 queued, 'change' 'drm'
>
> Care to run:
>   udevadm monitor
> and provide the output of the event sequence dump?

This is what I got wen the problem finally came back (it happens randomly, this 
time I triggered it by running glxgears, but it can happen for other reasons 
and none of them triggers it automatically):

KERNEL[1246192153.094553] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
KERNEL[1246192153.094734] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
KERNEL[1246192153.095273] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
KERNEL[1246192153.095498] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
KERNEL[1246192153.095665] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
KERNEL[1246192153.095808] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.096463] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
KERNEL[1246192153.099394] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.103806] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.111549] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.120800] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.127997] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.135699] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.143440] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.151183] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.157421] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.163320] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.170793] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)
UDEV  [1246192153.178593] change   /devices/pci0000:00/0000:00:02.0/drm/card0 
(drm)


So just an endless loop of the same message again and again.

Thanks,
Alberto.
>
> Kay

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