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- From: frampton@vicuna.ocunix.on.ca (Steve Frampton)
- Newsgroups: comp.archives.msdos.d,comp.binaries.ibm.pc.archives
- Subject: Bug in Telix 3.20 found.
- Summary: Exis, why hast thou abandoned us?
- Message-ID: <BPi1VB1w165w@vicuna.ocunix.on.ca>
- Date: 19 Dec 92 04:37:34 GMT
- Reply-To: frampton@vicuna.ocunix.on.ca
- Followup-To: comp.archives.msdos.d
- Organization: Vicuna Systems, Kingston, Ontario, CANADA
- Lines: 40
- Content-Type: text/plain; charset=us-ascii
-
- Hi all:
-
- I just got a hold of Telix 3.20. There are a couple of new features
- (nothing mind-blowing, however), and the sorry addition of a "nag"
- screen for non-registered copies when you exit the program.
-
- There is a new feature that allows you to swap the Telix program to
- XMS or disk to make room for the OS shell. I recommend you not use
- this feature, as it has a bug.
-
- I have noticed, under OS/2 2.0 (but most likely under DOS as well) that
- if you try and make an outgoing call, then ALT-J (with the aforementioned
- feature enabled) to shell to DOS; if you work away and then a connection
- is established (or the modem reports that the line is BUSY) this causes
- the session (or, in DOS's case, possible the entire machine) to freeze
- up and require rebooting.
-
- I believe this is caused by:
-
- - COM interrupt possibly hooked by Telix to provide buffer management
- when Telix begins.
- - User uses ALT-J to shell to DOS, Telix swaps itself out of memory,
- COM port generates an IRQ while user is working in DOS, the IRQ causes
- a jump to the Telix handler (which has been swapped out of memory and
- potentially replaced by new code, data, or garbage).
- - CRASH!
-
- I have disabled this swap feature on my copy and the problem goes away.
- Now to load up the debugger and get rid of that annoying delayed "nag"
- message on exit! :-) (I'm *kidding*)
-
- Follow-ups to comp.archives.msdos.d since comp.binaries.ibm.pc.archives
- no longer exists.
-
- +--------+< Unabashed Shabba Ranks Fan! >+------+--------------------+
- | Steve Frampton - frampton@vicuna.ocunix.on.ca | Steve Frampton |
- | I collect postcards! If you send me one from | 501-A Princess St. |
- | your area, I'll send one in return. Send to >| Kingston, Ontario |
- | (Don't forget both email and mailing address) | CANADA K7L 1C3 |
- +-----------------------------------------------+--------------------+
-