*BSD News Article 3086


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Newsgroups: comp.unix.bsd
Path: sserve!manuel!munnari.oz.au!sgiblab!sdd.hp.com!usc!elroy.jpl.nasa.gov!ucla-cs!ucla-mic!pita!scott
From: scott@pita.cns.ucla.edu (Scott Burris)
Subject: Re: Hang up on heavy disk load (Re: Adaptec SCSI bug?)
Message-ID: <scott.712957192@pita>
Nntp-Posting-Host: pita.cns.ucla.edu
References: <1992Jul30.210037.9265@ninja.zso.dec.com> <1992Jul31.002259.29940@gateway.novell.com> <1992Aug3.150008.188@cotton.nc.u-tokyo.ac.jp> <1992Aug3.195717.26165@aio.jsc.nasa.gov>
Date: 4 Aug 92 12:45:16 PDT
Lines: 52

u1k56@space.link.com (Jeffrey R Lang) writes:

>In article <1992Aug3.150008.188@cotton.nc.u-tokyo.ac.jp> shin@nc.u-tokyo.ac.jp (Shin YOSHIMURA) writes:
>>>>>>> On 31 Jul 92 09:22:59 JST, terry@npd.Novell.COM (Terry Lambert) said:
>>
>>terry> 	I noticed this as well with a WD1007 EDSI controller, only much more
>>terry> frequently (like the disk locked up during install).  I think this has to
>>terry> be either a more general problem in UFS, or in the paging code, which is how
>>terry> UFS does it's disk writes.  If anyone has a soloution, I am sure you would
>>terry> have both Michael and my thanks.
>>
>>Does anyone fix this problem?  I am annoyed by this problem.  I cannot
>>load X11R5 sources from remote sparcstation.
>>
>>My machine is 80486DX/33 256Kcashe/16MB mem (HKG noname), SCSI,
>>Fujitsu M2624FA, NE2000 compat. and others.
>>
>>--
>>$@5HB<!!?-(J
>>$@El5~Bg3X(J

>I have also been having troubles trying to use install or by hand.  It
>appears that on heavy disk load the system will lock up and i will have
>to reboot.

>I have seen other messages refering to this same type of problem and
>have not seen any responses or fixes on the net.

>Does any body have an idea whats wrong and/or how to resolve this
>problem.

>Please respond on the net, as my mail gateway is not currently working.

>Jeff Lang
>CAE-Link, Houston
>jlang@space.link.com

Well, if this is the same problem I've been having, the kernel is deadlocking
sleeping on something called "temp" which appears to be a temporary
memory allocator.  I've seen problems when I've built a new kernel
and immediately try copying it into the root filesystem.  If I do a
sync first and wait for it to complete, there's no problem.

I'm running a 486/33 Opti chipset with 16M of memory, both IDE and SCSI
disks.


--
----------
Scott Burris
UCLA Campus Network Services
cnetslb@oac.ucla.edu (213) 206-4860 - OR - scott@pita.cns.ucla.edu