On Mon, 2008-12-08 at 11:11 +0100, Martin Vogt wrote:
> Martin Vogt wrote:
> > Ian Kent wrote:
> > 
> >> You would need to enable debug logging.
> >> autofs and syslog setup instructions for this can be seen at
> >> http://people.redhat.com/jmoyer.
> >>
> > 
> > I think I can simply start it with "-d" ?.
> > As from the page this logging is meant to be used when
> > the daemon ist started without debugging, but I can start
> > it directly and can directly hang autofs.
> > 
> > Hm, I think I will write a small script for you, which
> > lets you simply reproduce this behaviour.
> > 
> > (A script with 2000 direct bind mount :)
> > 
> 
> Hello list,
> 
> the following script:
> 
> #!/bin/sh
> NET=/net/pxe1/var/tmp
> for i in `seq 1 2025` ; do
>     echo "/homes/vogt${i} -fstype=bind,ro :${NET}"
> done
> 
> creates a direct mount map with 2025 direct mount.
> (I assume you know how to configure autofs how to use this map :)
> (Please really use a remote host for the mounts when you trigger
> it, for "localhost" you will find another bug, but currently I'm focused
> on the remote part, so really use a remote machine here)

What do you mean?

Are you saying that entries like "localhost:/net/pxe1/var/tmp",
when /net/pxe1/var/tmp is local path are a problem or when the colon
escaped path, /net/pxe1/var/tmp refers to another map for the host pxe1
that happens to be the localhost?

> 
> Then run a find . -maxdepth 2 to really trigger the mounts.
> These are the bugs:
> 
> - SuSE 11.1 rc1 hangs on the 1024th mount(autofs-5.0.3+patches)
> - RHEL52 works (autofs-5.0.1-rc1) on mounting
> - RHEL52 has a kernel panic on unmounting (see screenshot attachment)
> 
> (started with: automount -d -f -t 600 )
> 
> For the kernel panic I started automount in the forground and hit CTRL-C
> when it was done with mounting, then after a long time, when it tries
> to umount the mounts it gives the kernel panic.
> 
> regards,
> 
> Martin
> 
> 
> 
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> autofs@linux.kernel.org
> http://linux.kernel.org/mailman/listinfo/autofs

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