From owner-freebsd-current  Sat May 29  5:21:30 1999
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Date: Sat, 29 May 1999 22:21:11 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199905291221.WAA28838@godzilla.zeta.org.au>
To: ache@nagual.pp.ru, dima@tejblum.dnttm.rssi.ru
Subject: Re: savecore too (Re: kvm_getswapinfo is broken)
Cc: current@FreeBSD.ORG
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>Just found that savecore is broken in the same way. What is proper
>procedure to fix it? I.e. is it must be fixed in the kernel, leaving
>userland programs as is or in userland, leaving kernel as is?

The kernel needs to maintain (or create as necessary for return by
sysctl()) udev_t versions of most (all?) device numbers that are accessed
in userland.  I think the proper way to do this will be to maintain a
udev_t for each dev_t in the kernel too.  udev_t should be named dev_t,
the current dev_t should be named something like kdev_t and should be
a pointer to a struct containing the (user) dev_t.  The kernel needs
something like this for fast conversions in old interfaces like stat(2).

Bruce


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