>First, kudos to the Debian and Linux developers. I was given a >PS/2 Model 80 (386 - Microchannel (MCA) machine) with an >MCA IDE controller. I added a 2 GB IDE drive and an ATAPI >CDROM. The debian installation went flawlessly!!! Both the >hard disk and CDROM were recognized and usable.
>I'm impressed and very happy. Almost. :-( I get segmentation >faults at various times after using the system for awhile. >I suspect that this could be do to a bad memory SIMM. >I've got five 2 MB SIMMs spread across two MCA memory >expansion cards for a whopping 11 MB (1MB on system board). >I think that one of these SIMMs could be bad. Can anyone >suggest tools for locating the bad SIMM? (If not, I'll just start >pulling them one at a time.) Or should I be looking else where >for the problem? >Symptoms: Seg fault error may occur at any time, running any program. >No problems under DOS. (But I understand that DOS isn't nearly as >aggressive in using memory as Linux.) >Thanks for any help >Tony Richardson The fact that you do not get segfaults under dos is because you spend most of your time there in non-protected mode. A segment fault means violating the segment limits. The segment tables are cached in the cpu (for the active segment) but the tables are stored in ram. Your first 1 meg of memory is probably OK as it would be mapped to the lower 1m (used by dos). I thought that there were some kernal options dealing with the MCA and maybe these need to be compiled in for the model 80. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

