Is anyone familiar with event masking?  It's something that the OS does and it prevents debugging, not sure if preventing debugging is the goal or just a side effect. 
The scenario is that I've tapped into an entry point in the SEPT and I'm trying to debug that program when called through the SEPT.  The breakpoint never displays and I get this strange message:
Cause . . . . . :   The breakpoint statement or instruction /0001 in
program TEST was already processed when the machine notification was received. The
  program call for the breakpoint may no longer exist.
Technical description . . . . . . . . :   The process was probably masked for
  events when the breakpoint instruction was run. You cannot use the ADDBKP
  command to stop the program at an instruction while the process is masked
  for events.
If my test program calls another program, I get the same error trying to debug the second program.  So I'm just looking for more information about this event masking, what it does, why it's used and if there is a way to turn it off. 
BTW, this is on a V4R4 box.

As an Amazon Associate we earn from qualifying purchases.

This thread ...


Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2022 by and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.