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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