Parsing oprofile: sre_constants.error: redefinition of group name 'samples' as group 3; was group 1

[GoogleCodeExporter]

What steps will reproduce the problem?
1. opreport -cgf | ./gprof2dot.py -f oprofile 

What is the expected output? What do you see instead?
I get the following traceback: 

  File "./gprof2dot.py", line 2069, in <module>
    Main().main()
  File "./gprof2dot.py", line 1994, in main
    self.profile = parser.parse()
  File "./gprof2dot.py", line 1067, in parse
    self.parse_header()
  File "./gprof2dot.py", line 1113, in parse_header
    self.entry_re = re.compile(entry_re)
  File "/usr/lib/python2.6/re.py", line 190, in compile
    return _compile(pattern, flags)
  File "/usr/lib/python2.6/re.py", line 245, in _compile
    raise error, v # invalid expression
sre_constants.error: redefinition of group name 'samples' as group 3; was
group 1

What version of the product are you using? On what operating system?

Updated to revision 296,
Python 2.6.4 on Ubuntu Karmic
oprofile 0.9.4+cvs20090629-2.1ubuntu2 

Original issue reported on code.google.com by sneumann...@gmail.com on 16 Dec 2009 at 4:18

Attachments:

• karmic.oprofile.gz

[GoogleCodeExporter]

Hi,

This happens because the oprofile output has multiple events: CPU_CLK_UNHALTED, 
and 
LOAD_BLOCK. gprof2dot doesn't support parsing multiple events. I have plans to 
add 
that support, but until then I'll try to fix the crash and get the first event 
parsed 
correctly. 

Original comment by Jose.R.F...@gmail.com on 31 Jan 2010 at 3:09

• Changed state: Accepted

[GoogleCodeExporter]

Fix pushed.

Note that the karmic.oprofile you attached has no call stack information so the 
graph 
generated by gprof2dot will appear as a bunch of isolated nodes. You'll need to 
re-
acquire the data with --callgraph=xxx option.

Original comment by Jose.R.F...@gmail.com on 31 Jan 2010 at 10:46

• Changed state: Fixed