Stories
Slash Boxes
Comments
NOTE: use Perl; is on undef hiatus. You can read content, but you can't post it. More info will be forthcoming forthcomingly.

All the Perl that's Practical to Extract and Report

use Perl Log In

Log In

[ Create a new account ]

richardc (1662)

richardc
  (email not shown publicly)
http://unixbeard.net/~richardc/

Journal of richardc (1662)

Monday July 23, 2001
07:48 PM

opening time

[ #488 ]

Okay, so I hate the web. That's an oversimplification and of course I'm using a browser to type this in, but soon I'll put a stop to it once I write a counterpart to j2m[0], but for now this is really sucking.

Right now I need to vent about kmtrace - the KDE version of mtrace.

kmtrace, like mtrace before it, is a memory leak hunter. It's good at it, in a quick roundup I did a while back I didn't find anything else that worked quite so well. Let's however cut to the chase, I'm not venting to sing it's praises.

So anyway, after a few days using it, and being prodded by Leon, I start to build a few automated tests using it for gravel's[1] libswfparse.

All is fine, then halfway through the test run it starts segfaulting, and won't stop.

"Crimeny!"[2] I think, "I seem to have broken something badly here"

So I wander away, then wander back and go to the first resort of an idle debugger, strace.

It turns out that when kmtrace runs it creates a tempfile named a bit like ~/.kde/tmp-`host`/kmtrace[A-Z]+.tmp, then neglects to remove it. Sooner or later it tries to permute itself a new name, buffer overruns itself and dies in flames.

So, answers on a postcard - should I be running some other part of KDE to watch and reap ~/.kde/tmp-`host`/[3] or is kmtrace just ropey, and should I file a bug report there rather than just complain here?

Software - I wouldn't trust it, I've seen who writes it.

[0] http://unixbeard.net/~richardc/lab/journal_to_mail/j2m

[1] http://sourceforge.net/projects/gravel/

[2] Swearwords may have settled in transit

[3] I only run Konqueror and kmtrace from KDE, having my software looking like windows is of no interest to me.