did you check dmesg?  

"transport endpoint is not connected" comes up when a mounted file system is 
unexpectedly and uncleanly unmounted, say for example like you said, your 
losing the serial connection.  there should be logs in dmesg about any file 
system unmounting and possibly what failed or caused the unmount.  the reason 
the reboot is fixing it is because it is giving you a clean mount point to 
mount to again.  if you dont want to reboot try this

fusermount -uz /mnt/owire

then you can go ahead a remount.

----- Original Message -----
From: "decibels.drop" <[EMAIL PROTECTED]>
To: owfs-developers@lists.sourceforge.net
Sent: Thursday, November 20, 2008 5:54:42 PM GMT -05:00 US/Canada Eastern
Subject: [Owfs-developers] Lose serial port at 6:45am everyday.

I have a hobby-boards master hub and graph the results of temp sensors around 
the house
with rrdtool.  Looks like about from Nov 9th on at 6:45 or so every morning the 
serial port is
lost. Rebooting usually seems to take care of it and then again at same time 
next morning
no more reports again.

At first I thought maybe a cronjob from something else was causing this, so 
stopped any
around that time and still get it. Nothing really changed to make this happen. 
So not sure
really how to troubleshoot any further with it. Logs aren't showing anything 
amiss that
I can see.  Oh, also moved the serial port to the other one and got the same 
problem this
morning. 

Using Gentoo Linux. Not sure if it is fuse or owfs or udev or even possibly the 
computer 
hardware. Hoping that someone might have ran into something similar. 

It's been running pretty much fine since late last year and this is the first 
real problem.
Reinstalling owfs, fuse and udev right now. Will see in morning if happens 
again. Probably
will.

Thanks,
Dave

Few outputs that I know to do:

$ /etc/init.d/owfs status
 * status:  started
$ /etc/init.d/owserver status
 * status:  started
$ /etc/init.d/fuse status
 * status:  started

ls /mnt/owire
ls: cannot access /mnt/owire: Transport endpoint is not connected

/etc/init.d/owfs restart
 * Stopping owfs ...                                                            
                                                                                
                                         [ ok ]
 * Starting owfs ...
fuse: bad mount point `/mnt/owire': Transport endpoint is not connected 

Versions
owfs 2.7_p4 
fuse 2.7.0

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