Re: Differences between NetBSD 3.0 and 4.0 with regard to the filesystem

[David Brownlee <abs%NetBSD.org@localhost>]

On Sun, 6 Apr 2008, Hans Petter Selasky wrote:

> I have a file system that is maintained outside the NetBSD repository. It
> works fine on NetBSD 3.0, but when the same code is used on NetBSD 4.0 the
> kernel will panic regularly due to uvm faults at random places.
>
> I don't have time to rewrite this piece of software and I need to know what
> has changed between the 3.0 and 4.0 release of NetBSD with regard to the file
> system.
>
> Aditionally: Where is the file system locking document ?

        If you're not having any luck tracking this down otherwise you
        could always try cvs updating the tree to midway between NetBSD
        3.0 and 4.0 and testing a kernel from there with a NetBSD 3.0
        userland, and based on the results then try midway between that
        and NetBSD 3 or 4. A few iterations should hopefully allow you to
        narrow in on the specific change that affects you. Of course each
        pass may take some manual merging of your filesystems code :/

        Presumably this is purely a kernel isue - does a NetBSD 3.0
        userland on a NetBSD 4.0 kernel still panic for you?
x
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