[Bug 196207] GTK/Glib applications crash when running under KDE4.3x (malloc_printerr, free(): invalid pointer)

[Michael Pyne]

https://bugs.kde.org/show_bug.cgi?id=196207


Michael Pyne <mpyne at kde.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
                 CC|                            |mpyne at kde.org
         Resolution|DUPLICATE                   |




--- Comment #31 from Michael Pyne <mpyne kde org>  2009-07-14 00:54:08 ---
I've been experiencing what I believe is this bug, and here's what I (think) I
know:

- It's in relation to glib.  QT_NO_GLIB=1 before running affected applications
seems to stop the crashes.
- It's in relation to glibc 2.10.1.  I didn't experience this issue until I
upgraded to this version of glibc.
- It's related to the malloc check code:
 * Running MALLOC_CHECK_=2 or 3 causes a SIGABRT after some songs with JuK,
using phonon-gst (and the glib Qt event loop, obviously).
 * Tone MALLOC_CHECK_ to a 1 (check, give message, but don't abort) and JuK
will eventually crash with SIGSEGV instead of SIGABRT, which is an indication
of eventual heap corruption.
 * unset MALLOC_CHECK_ and I can't get JuK to crash using my normal reproducing
technique (clicking "Next" as fast as I can during playback).  I haven't run it
for long enough to where I think there won't be a SIGSEGV but it lasts much
longer than with checking enabled but disregarded.
- It's related to KDE 4.  I've been able to reproduce with a gstreamer-only
test application I have (though much less frequently), except when running in
KDE 4.  Running KDE 4 applications in fluxbox still leads to crashes as well.

The other application besides JuK I get issues with is KTorrent.

Reopening because I'm really not quite sure of what to make of it, or where the
true fault lies (although at this point I suspect something in glibc's memory
checking code).

-- 
Configure bugmail: https://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.