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Re: [PATCH 5/5] zfs extensible_dataset and large_blocks feature support
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From: |
Andrei Borzenkov |
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Subject: |
Re: [PATCH 5/5] zfs extensible_dataset and large_blocks feature support |
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Date: |
Mon, 4 May 2015 07:32:37 +0300 |
В Sun, 03 May 2015 22:47:40 +0300
Toomas Soome <address@hidden> пишет:
>
> > On 03.05.2015, at 22:23, Andrei Borzenkov <address@hidden> wrote:
> >
> >>>
> >>
> >> they do implement read support extensible dataset… instead of fixed DMU
> >> types they dont specify type, making it possible to use fat zap objects
> >> from bonus area.
> >>
> >> reference commit:
> >> https://github.com/illumos/illumos-gate/commit/2acef22db7808606888f8f92715629ff3ba555b9
> >>
> >
> > OK; just to be sure - there are several remaining uses of
> > DMU_OT_DSL_DATASET and DMU_OT_DSL_DIR; are these intentional?
>
>
> they *should* be ok. at least browsing and loading files from datasets
> haven’t revealed other instances over the test time. but problem is, the
> cases of zapify (when “normal” structure is wrapped as zap object) I have
> seen, have been related to datasets using >128k recordsize, and its possible
> some cases may have been missed - the grub zfs code and real zfs code are not
> exactly easy to compare. at least so far I haven’t seen bugs related to this
> nor received any reports. the basic symptom can be either message about wrong
> type or “missing” directory entry in listing.
>
Can https://savannah.gnu.org/bugs/?44448 be somehow related?