From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kay Sievers Date: Wed, 29 Sep 2004 23:39:46 +0000 Subject: Re: Hanging udev process on nfs-mounted /dev Message-Id: <1096501186.4424.20.camel@localhost.localdomain> List-Id: References: <415980BF.1020401@bio.ifi.lmu.de> In-Reply-To: <415980BF.1020401@bio.ifi.lmu.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org On Wed, 2004-09-29 at 10:18 -0700, Greg KH wrote: > On Tue, Sep 28, 2004 at 05:18:23PM +0200, Frank Steiner wrote: > > Hi, > > > > I also sent this to the NFS list, because I'm not sure if this is an > > NFS or an udev problem. I hope it's ok to ask here! > > > > > > The issue: > > ===== > > From time to time some udev process goes mad and comsumes allmost all > > the CPU power, making the whole system terribly slow. > > This isn't a NFS specific bug. I've had a number of reports of this in > the past. It traces itself back to a tdb "issue" that the internal > database links are getting messed up and looping on themselves wrongly. Seems we have two different problems here, one that sounds like a loop consuming all the CPU and onother one, like the trace, which looks like a F_SETLKW deadlock. The traces are indicating a deadlock, where processes are simply waiting for each other for a write-lock on the udev.tdb to be released. Kay ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel