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From: Greg KH <greg@kroah.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: Hotplug events vs proc - timing
Date: Wed, 02 Jun 2004 17:41:59 +0000	[thread overview]
Message-ID: <20040602174159.GB12396@kroah.com> (raw)
In-Reply-To: <40BCD9C6.1040909@cornell.edu>

On Wed, Jun 02, 2004 at 01:36:09PM -0400, Bill Nottingham wrote:
> Greg KH (greg@kroah.com) said: 
> > On Tue, Jun 01, 2004 at 01:32:22PM -0600, Ivan Gyurdiev wrote:
> > > Fedora's updfstab tool (part of kudzu) is trigged by hotplug to 
> > > add/remove things from fstab, such as my Fujifilm Digital Camera 
> > > (usb-storage, scsi emulation). However... it reads /proc/scsi/scsi, and 
> > > doesn't work as it should because it's triggered before /proc/scsi/scsi 
> > > is updated most of the time. Where is the bug, and how should this race 
> > > be corrected?
> > 
> > The race should be fixed by having the hotplug script wait around for
> > the proc file to show up.
> 
> Hm, as I was thinking, the hotplug event is triggered by the USB
> insertion; what's really needed for updfstab is that it gets
> run triggered on the *scsi* device creation. Or is this the proc
> file you're referring too?

Yes, good point, you should update the fstab after the device node is
created.  You can learn of that by putting your script in the
/etc/dev.d/ directory tree.

thanks,

greg k-h


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  parent reply	other threads:[~2004-06-02 17:41 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-01 19:32 Hotplug events vs proc - timing Ivan Gyurdiev
2004-06-02 17:20 ` Greg KH
2004-06-02 17:36 ` Bill Nottingham
2004-06-02 17:41 ` Greg KH [this message]
2004-06-02 17:57 ` Marcelo Ricardo Leitner
2004-06-02 18:05 ` Greg KH
2004-06-02 23:19 ` Ivan Gyurdiev
2004-06-03  8:30 ` Harald Hoyer
2004-06-03 16:54 ` Greg KH

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