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Date:      Wed, 25 Sep 2002 19:41:44 +0200
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Mark Santcroos <marks@ripe.net>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: vmware reads disk on non-sector boundary 
Message-ID:  <22163.1032975704@critter.freebsd.dk>
In-Reply-To: Your message of "Wed, 25 Sep 2002 19:34:53 %2B0200." <20020925173453.GA1347@laptop.6bone.nl> 

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In message <20020925173453.GA1347@laptop.6bone.nl>, Mark Santcroos writes:
>Vmware2 stopped running from both md and ad devices. Virtual disks still
>work. It is caused by a read that is not on sector boundary.
>
>Should a program be able to read non-sector sized chunks from a raw disk 
>yes or no? What is the desired behaviour?

No.

>The fact that this did work, was it a bug or did this come out due to some
>other change. The stacktrace from read(2) is below.

This hasn't worked for a long time in -current.

-- 
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.

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