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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!su-news-hub1.bbnplanet.com!news.pbi.net!ns2.qnis.net!not-for-mail From: phil@ns.qnis.net (Phil Jensen) Newsgroups: comp.unix.bsd.freebsd.misc Subject: AHA2940 problems Date: 13 Dec 1996 10:19:50 -0000 Organization: QuadraNet Internet Services Lines: 74 Message-ID: <58rak6$a14@ns.qnis.net> NNTP-Posting-Host: ns.qnis.net Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:32526 Posting for a friend: X-Newsreader: knews 0.9.8 From: haplo@haplo.theramp.net (Jordan Klein) Subject: AHA2940/2940W problems Newsgroups: comp.unix.bsd.freebsd.misc I'm having a problem with FreeBSD 2.1.5/2.1.6/2.2-ALPHA and my AHA2940/ 2940W scsi controllers. This problem has been present ever since I moved from linux to FreeBSD. My system is a generic 486/120 with 48mb ram, AHA2940 (also tried a 2940W) with 2 internal hard drives (1 gig each), a NEC 8Xi internal cdrom drive, an external 1 gig hard drive, and an external Conner MS4000DAT+ tape drive. The problem occurs almost every time I try to play an audio cd in the cdrom drive, and sometimes when I'm using dump to backup my system. When I try to play audio cd's, I start getting a TON of kernel errors relating to my scsi. They go something like this: ahc0: Issued Channel A Bus Reset. 2 SCBs aborted sd1(ahc0:1:0): timed out in dataout phase, SCSISIGI==0x0 SEQADDR==0x0 . . and many more like them. Ultimately, I end up with: spec_getpages: I/O read error vm_fault: pager input (probably hardware) error, PID 236 failure Last time it happened (this morning), it came up with: Fatal trap 12: page fault while in kernel mode There were more messages, but the system rebooted before I could write them down. I am at a loss as to what to do. I've switched SCSI controllers, and that didn't fix it. I've never had any problems with Win95/NT/linux, but I've talked to several people on #freebsd on irc, and they haven't had any scsi problems like this. I know I can get away with not playing audio cd's, which isn't a big deal for me. The big deal is that I sometimes get these when I'm trying to dump to tape, but not every time. Also, I don't seem to get any errors just using my 3 hard drives by themselves, just when I'm trying to use audio cd's, and sometimes tapes. Nor do I get errors when I use data cd's (like my FreeBSD cd). I've checked and rechecked my cabling and termination, and all seems to be correct. The last hard drive internally is terminated, as well as my tape drive, externally (it's the last on the chain), and the scsi controller's not. I've recompiled my kernel with different scsi options, but nothing's worked. I'm at wit's end here. If anyone knows what's causing these messages, and what I can do to fix it, please let me know. Thank you. -- Jordan Klein | Technical Analyst jklein@theramp.net | Paranet http://www.theramp.net/jklein | jmklein@parannet.com Views presented here are my own | http://www.paranet.com -p -- Phil Jensen QuadraNet Internet Services Network Administrator / Manager http://www.qnis.net UNIX -is- user-friendly! Its just picky about who its friends are. Check out my Bourne Shell Tips Page! http://www.qnis.net/~phil/faq.html