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Date: Sat, 20 Sep 2003 16:26:13 -0700 (PDT)
From: Josh Brooks <user@mail.econolodgetulsa.com>
To: freebsd-hackers@freebsd.org
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Subject: problems with many vn-backed filesystems (in the same directory?)
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Hello,

If I create a lot of vn-backed filesystems ... say ... 30 of them, and
then do heavy i/o inside one or more of them, I can reliably lock up a
FreeBSD 4.x system.

I have seen this in every version from 4.5-4.8.

Two questions:

1) can anyone confirm this ?  Has this been discussed ?

2) I seem to remember that someone mentioned that this problem might not
manifest itself if each vn-backed filesystem was inside of its own
directory - as opposed to having all of the vn-files and the mount points
all inside the same directory.  Comments ?


Actually, any comments at all relating to large numbers of vn-backed
filesystems causing crashes is appreciated.

thank.