Cannot get dbx to work correctly with a running process


 
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Old 02-25-2011
Cannot get dbx to work correctly with a running process

Hi everyone,

I've been struggling with this for a few weeks now. I'm trying to debug a running process with dbx on an AIX box.

The command I'm using is 'dbx -a <pid> core'
There is a function I can perform in my application that crashes this process, but it does not show up as crashed in dbx. However, if I do 'ps -ef | grep <process>' it shows a new PID, so I know something is happening. The output I get when I first start dbx is,

Quote:
Waiting to attach to process 573546 ...
Successfully attached to dps643.
Type 'help' for help.
reading symbolic information ...
stopped in msgrcv at 0x900000000247918 ($t1)
0x900000000247918 (msgrcv+0xd8) e8410028 ld r2,0x28(r1)
(dbx)
If anyone can give me a hand, I'd appreciate it.

---------- Post updated at 12:29 PM ---------- Previous update was at 12:09 PM ----------

Another thing I just noticed is, the PID doesn't change until I actually type 'quit' in dbx. The service appears to crash (application locks up - then displays connection lost message), but the PID doesn't change until I exit my dbx session. Don't know if that matters.
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caspar-typesetting(7)						  MISCELLANEOUS 					     caspar-typesetting(7)

  NAME
      caspar-typesetting - Makefile snippets for common typesetting tasks

  SYNOPSIS
      In a Makefile, write

	include caspar/mk/docbook.mk

      or

	include caspar/mk/pod.mk

      .

  DESCRIPTION
      The  caspar  docbook.mk  and pod.mk files are Makefile snippets for common typesetting tasks, like typesetting LaTeX (see [3]), DocBook XML,
      DocBook SGML (see [2]) and POD (see [1]) documents.  You just have to type make, instead of stuff  like  jade  -t  tex  -d  caspar/print.dsl
      /usr/share/sgml/declaration/xml.dcl foobar.dbx.

  USAGE
      In a directory where you maintain .dbx (Docbook XML) or .tex (LaTeX) files, do

	 $ echo include caspar/mk/docbook.mk > Makefile

	 $ vi karenina.dbx
	 $ make karenina.view
	 $ make karenina.print

	 $ vi svejk.tex
	 $ make svejk.view
	 $ make svejk.print

	 $ make
	 $ make clean

      Other targets: filename.ps, filename.pdf, filename.2ps, filename.html, filename.printbig, filename.dvi.

      Variables  you  might  like  to  set  in	your  Makefile:  XMLDCL (default is /usr/share/sgml/declaration/xml.dcl; if you're not on a Debian
      GNU/Linux system, you'll likely have to adjust this), HTML_DSL, PRINT_DSL.

      In a directory where you maintain .pod files, do

	 $ echo include caspar/mk/pod.mk > Makefile
	 $ vi lire.pod
	 $ perldoc ./lire.pod
	 $ make lire.pdf
	 $ make
	 $ less lire.overstrike-txt
	 $ make clean

      Other targets: filename.ps, filename.html, filename.txt, ...  (Similar to the ones supplied by docbook.mk).

  EXAMPLES
      Some examples: Overriding the caspar-supplied DSSSL files: Create your own print.dls and html.dsl, in the same directory as your Docbook XML
      files. Your Makefile should read:

       PRINT_DSL = print.dsl
       HTML_DSL = html.dsl
       include caspar/mk/docbook.mk

      Overriding the standard html-to-text convertor:

       $ W3M=lynx make svejk.txt

      .

  FILES
      caspar/mk/docbook.mk, caspar/mk/pod.mk

  ENVIRONMENT
      For  docbook.mk: files: XMLDCL, HTML_DSL, PRINT_DSL; utilities: JADE, PDFJADETEX, PDFLATEX, JADETEX, LATEX, W3M, DVIPS, PSNUP, LPR, GV; set-
      tings: JADE_MAXERRORS. These variables can get adjusted in Makefile, as well as in the shell environment.

      pod.mk Uses no environment variables.

  AUTHOR
      Joost van Baal-Ili

  SEE ALSO
      caspar(7) [1] perlpod(1) about Perl's Plain Old Documentation format

      [2] DocBook: The Definitive Guide on http://docbook.org/,

      [3] The LaTeX Project Homepage on http://www.latex-project.org/.

      Some comments on advanced usage are in the files docbook.mk and pod.mk itself.

  caspar-typesetting 20120508					      8 mai 2012					       caspar-typesetting(7)