Date: Fri, 31 Oct 1997 23:58:57 -0800 From: David Greenman <dg@root.com> To: Phil Gilley <pgilley@metronet.com> Cc: hackers@FreeBSD.ORG, Doug White <dwhite@resnet.uoregon.edu> Subject: Re: Problem with ed driver in 2.2.5 Message-ID: <199711010758.XAA28986@implode.root.com> In-Reply-To: Your message of "Fri, 31 Oct 1997 21:01:40 CST." <Pine.HPP.3.95.971031205740.13709A-100000@fohnix.metronet.com>
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>I have a 486/66 with an SMC EtherCard PLUS Elite 16 (SMC WD8013EPC). >It worked flawlessly with 2.1.7.1-RELEASE and 2.2.2-RELEASE. When I >tried to do an FTP install of 2.2.5-RELEASE I kept getting machine >lockups after the installer logged in and starting downloading the >first tar file. Following a suggestion from Doug White on -questions >I was able to get 2.2.5 installed by using the 2.2.2 boot floppy. I >was then able to take a look at if_ed.c to see what was causing the >problem. It seems sometime after 2.2.2 a change was made to turn on >the 0 wait state option on 16 bit cards. This is what's causing the >lockup with my particular card. If I remove the "| ED_WD_LAAR_0WS16" >from line 744 then all is well. Does this point to a deficiency in >the ed driver or my hardware? Hmmm. Not sure how to deal with this. The reason why 0WS was turned on was to 'fix' a serious ISA shared-memory performance problem that a lot of newer motherboards have - the 8K RAM cards are almost useless without it. It turned out to cause problems with reading the EEPROM on the '790 based cards, so I killed the option for those prior to the 2.2.5 release...I'm surprised to hear that you're having troubles with a '690 based board. It shouldn't be a problem on most systems - this might indicate that your ISA bus speed is set too fast. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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