kern/87255: Large malloc-backed mfs crashes the system

[Poul-Henning Kamp]

The following reply was made to PR kern/87255; it has been noted by GNATS.

From: "Poul-Henning Kamp" <phk at phk.freebsd.dk>
To: Yar Tikhiy <yar at comp.chem.msu.su>
Cc: freebsd-bugs at freebsd.org
Subject: Re: kern/87255: Large malloc-backed mfs crashes the system 
Date: Tue, 11 Oct 2005 16:55:09 +0200

 In message <200510111450.j9BEoLEB006718 at 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 at comp.chem.msu.su>
 >To: FreeBSD-gnats-submit at 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 at 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.