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Conference turris::debug

Title:DEBUG
Notice:Updated locations for reporting QARs -- see note 834.1
Moderator:LOWFAT::DIETER
Created:Fri Jan 24 1986
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1868
Total number of notes:8200

1862.0. "question on CONNECT" by MUNICH::WWERNER (When in doubt, do as the INTs do) Mon May 12 1997 07:36

A customer reports that he is not able to connect to his application (connect 
hangs). If he runs a simple 'sleep() in a loop' program instead, connect works. 
Any idea what could cause this behaviour ?

Version info: OpenVMS Alpha V7.1. 

regards Wolfgang
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1862.1SSPADE::SSPADE::HILDEThu May 22 1997 18:3514
>Any idea what could cause this behaviour?

No, too many possiblities.

Can you get any more details...perhaps even a reproducer?  Is the application
single threaded and running on a single CPU machine?  Can you look at the
system from another window via ANA/SYS and determine the state of the
application process and the debugger main process?  What flavor of CONNECT
is this, connect to an up and running process, connect to spawned process either
from the debugger or from an app already under debug control, connect %node
for System Code Debugging,...?  More details, please.

Lon
1862.2VIRRUS::diewaldVortex of ChaosWed May 28 1997 15:3610
A few other thoughts...

* Does the program use $HIBER/$WAKE, or any of the system routines
  that might use them?

* Does the program do anything to change any exception handlers?

					Just having a flashback...
					       Jeff Diewald
					       Ladebug team