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- Path: sparky!uunet!cs.utexas.edu!uwm.edu!ee!bloc1469
- From: bloc1469@ee.ee.uwm.edu (Gregory R Block)
- Newsgroups: comp.sys.amiga.datacomm
- Subject: Re: Hey, does zmodem work for 2.4a?
- Date: 24 Dec 1992 05:26:06 GMT
- Organization: Electrical Engineering Dept. University of Wisconsin - Milwaukee
- Lines: 54
- Distribution: world
- Message-ID: <1hbhleINNdo8@uwm.edu>
- References: <olsen.7173@sourcery.mxm.sub.org> <1gopsoINNl30@uwm.edu> <olsen.7377@sourcery.mxm.sub.org>
- NNTP-Posting-Host: 129.89.2.33
-
- In article <olsen.7377@sourcery.mxm.sub.org> olsen@sourcery.mxm.sub.org (Olaf Barthel) writes:
- > No, this is what puzzles me. The callback routines wait nicely for
- >any queued serial IORequests, timer requests, etc. There are no
- >critical resource accesses which are not protected by proper
- >arbitration.
-
- Alright, here's where I get really hypothetical. I've only heard of
- the bug happening on 68000 systems. Now, I was unable to recreate
- this on my 3000. Only on my 68000-based 2000, my "telecommunications"
- machine, really. It's become a kind of "frontend" for my 3000
- development system.
-
- Anyways, enough banter. The problem only exists in 68000 systems, so
- it's obviously a timing issue. The problem exists when something else
- takes up a large amount of cpu, running at an equal or greater task
- level. "lha" does it every time.
-
- If you could get access to a 68000 to try this with, begin a download,
- and, from ram, un-lharc a program to ram. Bang, the download ends
- with error count exceeded... and there certainly aren't 20 errors in
- that list, for the fraction of a second that the window stays up.
-
- > The file transfer is entirely handled by the `term' main program.
-
- I'd forgotten that.
-
- >The only transfer-related co-task involved is the window update
- >server which should not affect the file transfer as it only reads
- >data but does not manipulate any. Besides: the co-task can be
- >disabled (has anybody who had problems with the file transfer tried
- >this at all?).
-
- I did. No difference. BTW: There seem to be some bugs in the window
- updating. Several times the text in the gadgets will be in "reverse
- video", a very unusual occurence. Several times, data isn't even
- shown in them. Something's getting lost. I don't know if you end up
- overwriting random areas of memory with it or not, but it's a
- dangerous thought. Anyways, it's apparently random. It doesn't
- happen when any one program in particular is running, nor does it
- happen with any specific type of file downloaded or time of transfer.
- I've lost everything on screen, to the point where the only thing
- being shown was the time left to transfer.
-
- > I got it, but the escape control codes were filtered out :-(
-
- Hopefully, this one will work. I hope it finds you in good condition.
- :)
-
- Greg
- --
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- (: Thy will be done, At Commodore as it is at Apple" -Dan Barrett :)
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-