home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!cis.ohio-state.edu!rutgers!cmcl2!kramden!liuyu
- From: liuyu@kramden.nyu.edu (Liuyu)
- Newsgroups: comp.os.os2.misc
- Subject: Re: OS2 WINS!! I give up!
- Message-ID: <liuyu.715062773@kramden>
- Date: 29 Aug 92 04:32:53 GMT
- References: <1992Aug27.015416.6882@maccs.dcss.mcmaster.ca> <1992Aug27.030506.4609@midway.uchicago.edu> <liuyu.714945700@kramden> <1992Aug28.200235.7250@njitgw.njit.edu> <19920828.144500.49@almaden.ibm.com>
- Sender: notes@cmcl2.nyu.edu (Notes Person)
- Organization: New York University
- Lines: 39
- Nntp-Posting-Host: kramden.acf.nyu.edu
-
- ADUNSMUI@TOROLAB6.VNET.IBM.COM (Al Dunsmuir) writes:
- >>OS/2, due to it s high amount of context switching, has some strange
- >>ability to push intermittently bad memory over the edge. It's
- >>happened on many computers. Replacing the memory usually works to
- >>cure it.
- >>
- >>My father's computer at work had its memory "pushed over the edge" by
- >>Windows 3.1. So it's nothing inherent in OS/2. (And when Windows 3.1
- >>died, it took most of his /Windows directory with it - a complete
- >>re-install of Windows and all Windows apps had to be performed).
- >>Again, replacing the memory cured everything.
- >>
- >>--
- >> |) David Charlap "I don't even represent myself
- >> /|_ dic5340@hertz.njit.edu sometimes so NJIT is right out!.
- >> ((|,)
- >> ~|~ Hi! I am a .signature virus, copy me into your .signature file.
- >>
-
- > Some of the extra stress is due to two differences between when one executes
- >a program from memory, and when one simply reads/writes that memory using a
- >program (such as a DOS VDISK device driver).
-
- > A) A DOS device driver typically will access a smallish block of the
- > memory (copying data in or out), then not touch the card for what
- > appears to the card to be a relatively long time. If the refresh
- > circuitry doesn't properly handle the cases when a particular
- > range of addresses is used without a break (code in a long, tight
- > loop), your memory won't get refreshed properly and you lose data.
-
- > A) When executing a program the address lines change in a fairly random
- > manner. Some memory cards (or memory chips) can keep up with relatively
- > slow changes, but aren't fast enough to keep up with the instruction
- > addresses. Sooner or later the card fetches storage from the wrong
- > memory address, and your program dies a horrible death.
-
-
- Thanks for the detail explaination.
- I appreciated it a lot more than some personal attacks I got.
-