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Date: Fri, 28 Dec 2007 13:48:26 +0100
From: Kris Kennaway <kris@FreeBSD.org>
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To: Jens Schweikhardt <schweikh@schweikhardt.net>
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Cc: FreeBSD current <freebsd-current@freebsd.org>
Subject: Re: Garbled shutdown message
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Jens Schweikhardt wrote:
> hello, world\n
> 
> my 8-CURRENT as of Dec 21 shows some strange behavior when shutting down
> (e.g. with the shutdown -h command). The last messages look like this
> (written down manually):
> 
> [...]
> Waiting (max 60 seconds) for system process `bufdaemon' to stop... done
> a
>  itSiynngc i(nmga xd is6k0s ,s evcnoonddess)  rfeomra isnyisntge.m.pr1o1c ess `syncer' to stop... 11 7 4 6 4 4 1 1 0 0 0 0 done.
> All buffers synced.
> 
> If you look at this closely you can find "Syncing (max 60 seconds) for
> system process" if you read about every other character. It's always the
> third of the three "Waiting" lines. Anyone else seeing this?

You have an SMP system and do not have the PRINTF_BUFR option or 
whatever it is.  Without it multiple CPUs have no synchronization 
between printfs and will interleave.

Kris