Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!udel!mmdf
From: unix3@ce.chalmers.se (Unix Internt. Labgrupp 3)
Newsgroups: comp.os.minix
Subject: Re: fix to diskcheck(1)
Message-ID: <31216@nigel.ee.udel.edu>
Date: 21 Sep 90 22:43:12 GMT
Sender: mmdf@ee.udel.edu
Lines: 21


>]I reformatted my HD this week-end. After this, I tried to run diskcheck on
>]my Minix partitions. It failed, saying it couldn't purge the disk cache. Of
>]course it couldn't: it does this by reading NR_BUFS from /dev/ram, and I
>]have no ramdisk! So I fixed diskcheck; it will now print a warning, then
>]continue (if you get this warning, you might get wrong results as reads are
>]now cached).

>Just a thought:
>wouldn't it be better to read NR_BUFS from /dev/null or /dev/mem?

  I have been thinking about this ever since I first saw the diskcheck source.

  Why is there a need for messing with NR_BUFS? I presume there is one, as you
are not using a simple sync() ...

  Perhaps you could explain this or if it would suffice why it isn't there?!

    With My Regards,

        Andrew Olausson