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From: Jung-uk Kim <jkim@FreeBSD.org>
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Date: Thu, 4 Aug 2011 19:36:09 -0400
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org, Martin Matuska <mm@freebsd.org>
Subject: Re: svn commit: r224614 - head/sys/kern
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On Thursday 04 August 2011 06:49 pm, Xin LI wrote:
> On 08/04/11 14:46, Jung-uk Kim wrote:
> > On Tuesday 02 August 2011 03:13 pm, Martin Matuska wrote:
> >> Author: mm Date: Tue Aug  2 19:13:56 2011 New Revision: 224614
> >> URL: http://svn.freebsd.org/changeset/base/224614
> >>
> >> Log: For mount, discover f_mntonname from supplied path argument
> >> using vn_fullpath_global(). This fixes f_mntonname if mounting
> >> inside chroot, jail or with relative path as argument.
> >>
> >> For unmount in jail, use vn_fullpath_global() to discover global
> >> path from supplied path argument. This fixes unmount in jail.
> >
> > It seems fdescfs(5) hangs after this commit if the mount point is
> > /dev/fd.
>
> Please find attached kib@'s patch that fixes this issue (david
> wolfskill and I have both tested individually).

Yes, it cured the hang.

Thanks,

Jung-uk Kim