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Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!usc!acsc.com!acsc.com!fmayhar From: fmayhar@acsc.com (Frank Mayhar) Newsgroups: comp.os.386bsd.bugs Subject: Problems with installation of NetBSD 0.9... Date: 20 Sep 1993 23:17:10 GMT Organization: Advanced Computing Systems Company Lines: 45 Distribution: world Message-ID: <27ldlm$j27@acsc.com> Reply-To: fmayhar@acsc.com NNTP-Posting-Host: cpuserver.acsc.com I sent this to netbsd-bugs@sun-lamp.cs.berkeley.edu, but only got one response (and that one was using an invalid assumption, since I hadn't provided enough information), so I'm posting it here. This is probably a FAQ, but I couldn't find it. I've been installing NetBSD 0.9 on my 486 system this weekend, and have run into a showstopper. From time to time, I get a "ISA strayintr 7" message, and the system goes straight off into the weeds. It typically happens after booting, right before fsck runs. (I also see a message indicating an unexpected interrupt from wdc0 at this point, but I don't know whether that is related.) If it happens during boot, the system hangs at that point. If I get further, it happens during I/O, typically while accessing my SCSI drive or tape. If it happens at this point, the system is no longer able to contact the SCSI controller or the drive (either tape or disk) itself, and it times them out. I'm seeing the problem at boot about four times out of five; the only semi-reliable way of avoiding it is to first boot DOS (which has a SCSI driver), and then warm boot back to NetBSD. This is making the system unusable. My system is a 486/DX clone with 8 MB memory and 128K cache. It contains a QuickPath 13-port multifunction card which provides 4 16550 serial uarts, two floppy controllers (one of which is disabled) and an IDE drive connection. The IDE drives (two) are a WD Cavair 2200, shared between DOS and NetBSD, and a Quantum 80 MB drive which is all DOS. The system also contains an Adaptec 1542B, with a Maxtor LX340SY and an Archive 150 tape. Other cards, not used by NetBSD, are a PAS16 sound card and a bus-mouse. The PAS16 uses IRQs 7 (for the Soundblaster side), and 5 (for the PAS side; I don't have my list here at work, but I'm reasonably sure that this is correct). The printer IRQ (on the Quickpath card) is disabled. I had been running 386bsd 0.1.2.4 with no problems. Removing the PAS card is not really a viable alternative, nor is disabling the Soundblaster side of that card. I'm surprised that getting a stray interrupt causes the SCSI stuff to die; I wouldn't have thought they were that closely related. Any help or pointers to more information would be gratefully accepted. Thanks. -- Frank Mayhar fmayhar@acsc.com Advanced Computing Systems Company 3000 S. Robertson Blvd. Suite 400, LA, CA 90034 (310) 815-4858