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Date: Sun, 8 Jan 2006 16:40:35 GMT
From: Alexander Leidinger <netchild@FreeBSD.org>
Message-Id: <200601081640.k08GeZGc083176@freefall.freebsd.org>
To: matthias.andree@gmx.de, netchild@FreeBSD.org, freebsd-bugs@FreeBSD.org
Cc: 
Subject: Re: kern/60313: data destruction: lseek() misalignment silently
	ignored by some block devices
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Synopsis: data destruction: lseek() misalignment silently ignored by some block devices

State-Changed-From-To: open->closed
State-Changed-By: netchild
State-Changed-When: Sun Jan 8 16:39:04 UTC 2006
State-Changed-Why: 
5.x and 6.x come with GEOM, where -- according to phk -- this is
handled correctly.

>From phk:
---snip---
Notice however that lseek(2) does not in fact instigate any I/O
request so it cannot possibly know if the address is properly aligned
or not.  Therefore lseek(2) will always succeed, even if the subsequent
read/write will fail at that offset.
---snip---

http://www.freebsd.org/cgi/query-pr.cgi?pr=60313