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To: Colin Percival <cperciva@tarsnap.com>
cc: freebsd-geom@freebsd.org
Subject: Re: No automatic root mount holding for new geom providers?
In-reply-to: <0100015f900017eb-91becde5-26c8-49f0-b593-751670ca42e0-000000@email.amazonses.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
References: <0100015f900017eb-91becde5-26c8-49f0-b593-751670ca42e0-000000@email.amazonses.com>
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Date: Mon, 06 Nov 2017 08:05:50 +0000
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--------
In message <0100015f900017eb-91becde5-26c8-49f0-b593-751670ca42e0-000000@e=
mail.
amazonses.com>, Colin Percival writes:

>In practice, it seems that we avoid this by virtue of tasting new geoms b=
eing
>much faster than everything else the kernel does between when the disks a=
re
>attached and when vfs_mountroot runs, but I wouldn't want to rely on that=
.
>
>Am I missing something?

As I recall, the actual open will stall on the non-empty event-queue.

-- =

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    =

Never attribute to malice what can adequately be explained by incompetence=
.