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Date:      Tue, 20 Sep 2016 13:04:18 +0300
From:      Slawa Olhovchenkov <slw@zxy.spb.ru>
To:        Warner Losh <imp@bsdimp.com>
Cc:        Ronald Klop <ronald-lists@klop.ws>, src-committers <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>
Subject:   Re: svn commit: r305968 - head/etc/autofs
Message-ID:  <20160920100418.GI2960@zxy.spb.ru>
In-Reply-To: <CANCZdfpY%2Br3p2z6f59ZD7Vq2a60zMNpCncU3F0aaDu=kdHitgg@mail.gmail.com>
References:  <201609190851.u8J8pRDD068198@repo.freebsd.org> <op.yn1u4maukndu52@d93fd8ae.cm-21.dynamic.ziggo.nl> <20160920034337.GA6180@brick> <CANCZdfpY%2Br3p2z6f59ZD7Vq2a60zMNpCncU3F0aaDu=kdHitgg@mail.gmail.com>

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On Mon, Sep 19, 2016 at 10:19:04PM -0600, Warner Losh wrote:

> For MSDOS it's one thing and likely helps. But for ufs it doesn't
> help. Soft updates already does an excellent job at reducing wear and
> all async does is give added danger of dataloss. Linux distros don't
> matter for UFS because different design decisions have been made for
> ext[234] and UFS.

SU mount of UFS and unexpected media loast can caused kernel panic at
next mount this media. async mount don't have such issuse.


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