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From: altitude@css.itd.umich.edu (Alex Tang)
Newsgroups: comp.os.386bsd.bugs
Subject: Re: Those NetBSD hard-drive hangs...
Date: 11 Jul 1993 17:59:32 GMT
Organization: University of Michigan - ITD Consulting and Support
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Message-ID: <21pke4$2ss@stimpy.css.itd.umich.edu>
References: <21l38f$42t@werple.apana.org.au>
NNTP-Posting-Host: stimpy.css.itd.umich.edu
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Andrew Herbert (andrew@werple.apana.org.au) wrote:
: /dev/drum is used to access the swap area. On a system with just one swap
: region it is basically equivalent to that swap region - i.e. /dev/rsd0b,
: /dev/rwd0b or similar, depending on your hardware. If you have multiple
: swap partitions in use, /dev/drum interleaves all these to form a single
: logical partition.
: A problem in the sd driver (/sys/scsi/sd.c) allowed unpalatable transfer
: lengths - anything that was not a multiple of 512 bytes - to be sent to the
: scsi controller, which may then hang. The problem is fixed in
: netbsd-current. I have not seen this occur in my (limited) testing of a
: wd-based system.
Hi. I've had similar problems. For a while, I had two swap partitions, but I
found that i kept getting hard write errors in one of the swap partitions. I
decided to remove that swap from my system. Now I'm only running with 1 swap.
My question is...if I remove /dev/drum, will i see any difference?
Occasionally i get the hanging drive light thing. will removing /dev/drum
affect it?
thanx...alex...
--
Alex Tang -- ALTITUDE@UMICH.EDU...USERW00Y@UMICHUM.BITNET
U of M, SNRE: Student and Computer Consultant II
ITD/CSS Consultant and...General Fun Loving Guy :)