mksnap_ffs, snapshot issues, again

[Robert Watson]

On Tue, 19 Aug 2003, Branko F. Gracnar wrote:

> >The behaviour of filesystem activity stalling during snapshot creation
> >is intentional, but 30 minutes to snapshot an empty FS is not.  Is
> >there disk activity during this time?  It's not clear from your mail
> >whether bg fsck is in operation during this time.  If so, that's
> >probably the cause, since bg fsck itself uses a snapshot to check the
> >FS consistency.
> 
> Background fsck was NOT running. I formatted fs and then tried to make
> snapshot. 

When reporting bgfsck/snapshot/... problems, you may want to CC Kirk
McKusick <kirk at mckusick.com> -- I don't believe he closely tracks
current@, and he's the best person to track down and fix problems in this
area.  I forwarded your earlier message to him, but haven't heard back as
yet.  Just FYI.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org      Network Associates Laboratories