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Date:      Sat, 10 Mar 2018 16:48:05 -0700
From:      Ian Lepore <ian@freebsd.org>
To:        Pete French <petefrench@ingresso.co.uk>, freebsd-stable@freebsd.org
Subject:   Re: zfs problems after rebuilding system [SOLVED]
Message-ID:  <1520725685.84937.144.camel@freebsd.org>
In-Reply-To: <217437b9-9879-8919-966a-45cf5eb58d33@ingresso.co.uk>
References:  <21c64a2d-b9f9-24c8-88ec-ff1210891f60@zyxst.net> <CAOtMX2gHm_UdYzn5J6Lm76r8KakkYMzEcxddFYLqkmGYwkihuQ@mail.gmail.com> <65372449-53f1-8002-981a-e20f4a592e26@zyxst.net> <CAOtMX2g79aqkinu0meBzhLbui7n9H9yiEwxKm6cxpZSaxbWqbg@mail.gmail.com> <f0e9385c-4d62-a68d-ea93-f013bc456b5d@zyxst.net> <CAOjFWZ4Yq4cnWN_qucbN4W-6qtf4NYNzjNKe4QL17DU-Q=N%2B_g@mail.gmail.com> <CAOjFWZ53WaOtCvRtNpsL1OqgE7rDu8jWNEHRVPZ5Z3Q_n1bnqw@mail.gmail.com> <CAOjFWZ6gF3=N8=v3aXQaiG=pd8kmZ-xpvN2jHYj9%2Bh8fCm=rsw@mail.gmail.com> <CAOjFWZ7nPFdKr_G2qHihXdcHUBed7V0uLLHM9=p1PKzJMZNemw@mail.gmail.com> <CAOjFWZ6J7UV_xXxtASqnonS8qatqaSSEqJUKyi9nw%2Bms%2BUg1QQ@mail.gmail.com> <5CFC89E9-57BE-4CB7-9C55-0D3CCF1E8D3D@FreeBSD.org> <edfb5da8-3fad-168f-4dbc-6da9b0822c76@zyxst.net> <20180303234236.M3811@besplex.bde.org> <9b3cd942-347c-44a2-60d6-0b3c4a45552f@ingresso.co.uk> <1520723109.84937.136.camel@freebsd.org> <84146241-12d3-8333-0687-c2377838f175@ingresso.co.uk> <1520723722.84937.139.camel@freebsd.org> <217437b9-9879-8919-966a-45cf5eb58d33@ingresso.co.uk>

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On Sat, 2018-03-10 at 23:42 +0000, Pete French wrote:
> > 
> > It looks like r330745 applies fine to stable-11 without any changes,
> > and there's plenty of value in testing that as well, if you're already
> > set up for that world.
> > 
> 
> Ive been running the patch from the PR in production since the original 
> bug report and it works fine. I havent looked at r330745 yes, but can 
> replace the PR patch with that and give it a whirl.... will take a look 
> Monday at whats possible.
> 
> -pete.
> 

I based my fix heavily on that patch from the PR, but I rewrote it
enough that I might've made any number of mistakes, so it needs fresh
testing.  The main change I made was to make it a lot less noisy while
waiting (it only mentions the wait once, unless bootverbose is set, in
which case it's once per second).  I also removed the logic that
limited the retries to nfs and zfs, because I think we can remove all
the old code related to waiting that only worked for ufs and let this
new retry be the way it waits for all filesystems.  But that's a bigger
change we can do separately; I didn't want to hold up this fix any
longer.

-- Ian



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