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Date:      Fri, 18 Jan 2013 15:34:15 +0200
From:      Vitalij Satanivskij <satan@ukr.net>
To:        Jaakko Heinonen <jh@FreeBSD.org>
Cc:        satan@ukr.net, Alexander Motin <mav@FreeBSD.org>, Gleb Smirnoff <glebius@FreeBSD.org>, freebsd-current@FreeBSD.org
Subject:   Re: panic after r244584
Message-ID:  <20130118133415.GA7189@hell.ukr.net>
In-Reply-To: <20130118131954.GA3868@a91-153-116-96.elisa-laajakaista.fi>
References:  <20130118073600.GA70874@hell.ukr.net> <20130118094424.GD2331@FreeBSD.org> <50F93165.60809@FreeBSD.org> <20130118113934.GA60441@hell.ukr.net> <50F9357F.8040109@FreeBSD.org> <20130118131954.GA3868@a91-153-116-96.elisa-laajakaista.fi>

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Jaakko Heinonen wrote:
JH> On 2013-01-18, Alexander Motin wrote:
JH> > > AM> > V>  panic: make_dev_alias_v: bad si_name (error=22 si_name=enc@n5003048000bab37d/tpe0/slot@1/elmdesc@Slot 01/pass7)
JH> 
JH> > > AM> The panic is triggered by the check added by the recent r244584 change.
JH> > > AM> The space in device name came from the enclosure device, and I guess it
JH> > > AM> may be quite often situation. Using human readable name supposed to help
JH> > > AM> system administrators, but with spaces banned that may be a problem.
JH> > > 
JH> > > That's was not created by human, it was generated (I think so) by system. 
JH> > 
JH> > These strings are flashed into enclosure firmware by manufacturer.
JH> 
JH> You can't rely on that any string can be safely used as a device name
JH> even if spaces were allowed. Consider for example duplicate names and
JH> "../".
JH> 
JH> Where these names are generated? The original report didn't contain a
JH> backtrace.

Yes. No backtrace, because of switching off all debuging in kernel. 

For now I can't use that's server for testing, but there are another servers waiting for upgrade.

I will try to reproduce problem with  kernel debuger enabled.





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