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To: Yar Tikhiy <yar@comp.chem.msu.su>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 11 Oct 2005 14:50:21 GMT."
	<200510111450.j9BEoLEB006718@freefall.freebsd.org> 
Date: Tue, 11 Oct 2005 16:55:09 +0200
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Cc: freebsd-bugs@FreeBSD.org
Subject: Re: kern/87255: Large malloc-backed mfs crashes the system 
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In message <200510111450.j9BEoLEB006718@freefall.freebsd.org>, Yar Tikhiy write
s:
>The following reply was made to PR kern/87255; it has been noted by GNATS.
>
>From: Yar Tikhiy <yar@comp.chem.msu.su>
>To: FreeBSD-gnats-submit@FreeBSD.org
>Cc:  
>Subject: Re: kern/87255: Large malloc-backed mfs crashes the system
>Date: Tue, 11 Oct 2005 18:44:36 +0400
>
> Just for the record:
> 
> The problem seems to involve vfs-md interaction
> as filling just a bogusly large malloc-backed md
> device results in harmless ENOSPC at some point.

ENOSPC may be a problem for filesystems, try changing it to EIO and
see if they cope better with that.

In all cases it is a "don't do that then" class of problem.

-- 
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.