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Date:      Tue, 08 Jan 2019 10:39:40 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 234705] zpool initialize does not BIO_DELETE
Message-ID:  <bug-234705-3630-2zZxafO2ac@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-234705-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-234705-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234705

--- Comment #6 from Steven Hartland <smh@FreeBSD.org> ---
Created attachment 200907
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=200907&action=edit
bio_delete dtrace script

Just checked on my 12.0-RELEASE box by creating an md backed pool while running
the attached dtrace script and checking the output of:
sysctl kstat.zfs.misc.zio_trim

These show both BIO_DELETE's being processed and no unsupported increment so as
far as I can tell vdev's are still being erased on init.

So I guess the question is what lead to come to the conclusion they aren't?

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