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Date:      Tue, 18 Jun 1996 16:58:09 +1000
From:      Bruce Evans <bde@zeta.org.au>
To:        freebsd-current@freebsd.org, tony@fit.qut.edu.au
Subject:   Re: Bug in NFS
Message-ID:  <199606180658.QAA13025@godzilla.zeta.org.au>

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> Hi there, I think I have found a bug in the 2.2-current nfs code. I am
> exporting the /dev directory to a client but it seem that the minor
> number of the devices are changed across the nfs mount.

> On the server:
>  brw-r-----  1 root  operator    0, 0x00010002 Jun 19 00:32 /dev/wd0

> On the client:
>  brw-r-----  1 root  operator    0,   2 Jun 19 00:32 /dev/wd0

NFS only supports 16-bit device numbers so it can't possibly preserve
32-bit device numbers if the high bits are actually used.  This is the
problem here.  More fundamentally, device numbers aren't portable across
OS's, so they shouldn't be exported.

Bruce



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