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Date:      Tue, 03 Sep 2019 14:07:36 -0000
From:      "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net>
To:        Warner Losh <imp@bsdimp.com>
Cc:        Alan Somers <asomers@freebsd.org>, Justin Hibbits <chmeeedalf@gmail.com>,  src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org>
Subject:   Re: svn commit: r346441 - in head/sys/modules: em fusefs iavf
Message-ID:  <201904201859.x3KIxd9J023812@gndrsh.dnsmgr.net>
In-Reply-To: <CANCZdfoPMm0wX%2BUq3xyHh6Jvz6S-gzWk9VkwB_dR8%2BdARUj-ug@mail.gmail.com>

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> On Sat, Apr 20, 2019, 7:47 AM Alan Somers <asomers@freebsd.org> wrote:
> 
> > On Sat, Apr 20, 2019 at 7:23 AM Justin Hibbits <chmeeedalf@gmail.com>
> > wrote:
> > >
> > >
> > >
> > > On Sat, Apr 20, 2019, 08:21 Alan Somers <asomers@freebsd.org> wrote:
> > >>
> > >> On Sat, Apr 20, 2019 at 6:58 AM Justin Hibbits <chmeeedalf@gmail.com>
> > wrote:
> > >> >
> > >> >
> > >> >
> > >> > On Sat, Apr 20, 2019, 07:51 Alan Somers <asomers@freebsd.org> wrote:
> > >> >>
> > >> >> Author: asomers
> > >> >> Date: Sat Apr 20 12:51:05 2019
> > >> >> New Revision: 346441
> > >> >> URL: https://svnweb.freebsd.org/changeset/base/346441
> > >> >>
> > >> >> Log:
> > >> >>   Use symlinks for kernel modules rather than hardlinks
> > >> >>
> > >> >>   When aliasing a kernel module to a different name (ie if_igb for
> > if_em),
> > >> >>   it's better to use symlinks than hard links. kldxref will omit
> > entries for
> > >> >>   the links, ensuring that the loaded module has the correct name.
> > >> >>
> > >> >>
> > >> >
> > >> >
> > >> > Thanks! This should fix installkernel on my POWER9.
> > >> >
> > >> > - Justin
> > >>
> > >> What's the problem with your POWER9?  Is that one of those msdosfs
> > >> /boot systems?  If so, I don't think this will fix it.  msdosfs
> > >> doesn't support either symlinks or hardlinks.  Or is there some other
> > >> problem?
> > >> -Alan
> > >
> > >
> > > Yes it is.  Well that's a bummer then. I thought we faked symlinks on
> > msdosfs, but on second thought not sure how well would do that.
> > >
> > > - Justin
> >
> > We should probably just remove the offending links on ppc, then.  The
> > only harm is that after upgrading, ppc users would have to replace
> > fuse_load="YES" with fusefs_load="YES".
> >
> 
> We should only do the Intel links on those platforms that have legacy users
> that need the old names. We should also only support the old names for one
> release or so.

IIRC this was done so that the dropping of one of the drivers in ^head
could be merged back to ^stable.  It probably should of been killed in
^head after that fact, but if I recall the values correctly it was
@head=12 and merged to @stable=11.  We would need to dig those facts
out, but yes, please, this link should be killed and cleaned up quickly as
it creates almost as many problems as it solved.
 
> Warner
-- 
Rod Grimes                                                 rgrimes@freebsd.org





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