Date: Wed, 27 Nov 2002 18:25:48 +0100 From: Gerrit =?iso-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> To: freebsd-smp@freebsd.org Subject: DP2 and SMPng on MSI 694DPro-AIR Message-ID: <20021127172548.GF27502@pmp.uni-hannover.de>
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Hello folks, I have the mainboard mentioned above with 2xP3-933 running flawlessly under FBSD 4.3 for well over one years now. Last week I thought DP2 would be a good opportunity to test the upcoming FBSD 5.0 release. Installation was more or less without any problem and the GENERIC-kernel runs fine on the machine. Then I made my own kernel by taking the configuration for GENERIC and adding only the two lines for SMP-support. Booting this kernel went ok until the 15s delay to probe scsi-devices. After that 15s there was one more line on the screen (perhaps mounting the root-fs), then the computer switched off suddenly. Well, the second try to boot the new kernel succeeded and almost everything seemed to work. Only one thing really surprised me: When I tried to access one of my SCSI-controllers (a DC 2976UW on sym) or the CDRW (Yamaha 8824S) connected to it (mounting, rescanning, resetting, whatever), the machine either froze without any further message or simply switched off like it did within the first boot process. I have another SCSI-controller (AdvanSys on adv) with an Olympus MOD connected to it. This bus and the MOD are both working fine. After some days of trying I found a possibility to prevent this behaviour on the CDRW: when I change a bios setting (mainboard bios) named "MPS VERSION CONTROL FOR OS" from "1.1" to "1.4" I can use my CDRW without any problem. Looking at the two different verbose dmesgs, I see some changes in IRQ management, but I'm far from being an expert on things like this. If anyone should be interested in this dmesgs, I can email him/her the files (or even post them on the list here, if >50k of dmesgs are ok :-). However, even with this setting two minor problems remain: The SMP kernel /never/ gets the machine to reboot correctly. It either hangs at the end after saying "rebooting", or right after the line saying "...stopping vlrnu...done". Ok, that's not too bad, I don't want to reboot my machine that often, anyway. :) The second thing appeared when I wanted to use the DistribitedNet- client (dnetc) to test the machine's stability over night under load. Right after starting dnetc the system froze, again without any error message or something similar. Well, we had some talk about these things in de.comp.os.unix.bsd, and I was finally told to take my story here, because here the guys would be around who are interested in stuff like this. :) If there is further information I can provide, please tell me. BTW: apart from the things mentioned abvove, DP2 seems to be stable running on my server at home for 18h now. cu Gerrit -- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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