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Re: [Duplicity-talk] ioctl sign extension on FreeBSD 6.3 amd64


From: Kenneth Loafman
Subject: Re: [Duplicity-talk] ioctl sign extension on FreeBSD 6.3 amd64
Date: Wed, 15 Sep 2010 08:38:32 -0500
User-agent: Thunderbird 2.0.0.24 (X11/20100411)

We ship pexpect.py with duplicity as a convenience and with the author's blessings.

It could be replaced with the current version if you want to try it...  let us know.

...Ken

Philip Jocks wrote:
Hi Ken,

sorry for digging this out, but I just ran into this issue again, with duplicity installed from FreeBSD ports on a 8.1 amd64 box.
I asked someone I know who is more familiar with Python than I am and we found out that the pexpect.py you ship with duplicity causes this in line 1448:

  
        fcntl.ioctl(self.fileno(), TIOCSWINSZ, s)
    

Uncommenting it lets the warning disappear and duplicity seems to continue to run OK. If I understood the Python guy correctly, it doesn't really matter, because this is about setting the terminal window size and sftp/scp et al don't really care about that.

Maybe, someone can confirm and fix this somehow. If I'm not mistaken, rsync.net was/is sponsoring duplicity and they're a FreeBSD shop, so it should be easy for them to reproduce and confirm.

Is that pexpect.py a specially tuned version of the module and necessary to keep and not just depend on the current one?

Philip

Am 09.03.2009 um 22:55 schrieb Kenneth Loafman:

  
I have never tested on FreeBSD.  If someone in the group knows what's
going on here, please let us know.  Haven't looked at BSD in years!

...Ken

Philip Jocks wrote:
    
Same problem here on FreeBSD 7.1 p2 amd64. First backup seems to work,
further backups die with
-- 
Fatal Error: Neither remote nor local manifest is readable.
No old backup sets found, nothing deleted.
-- 
Does anyone has an idea how to fix this?

Cheers,

Philip

      
Separate from my cron issues, I see the following in my kernel log
when duplicity runs:

WARNING pid 72869 (python2.5): ioctl sign-extension ioctl
ffffffff80087467

This is on FreeBSD 6.3 amd64, current Python, etc. installed from ports.

It seems to show up once each time it connects to the remote host,
with a different pid each time.  I know the warning is actually coming
from Python, but the first time I Googled for this (admittedly, a
while ago; can't find links now), some other projects had similar
issues and the fix was in the project itself, not Python.

-- 
Steve Madsen <address@hidden>
Light Year Software, LLC  http://lightyearsoftware.com





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