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List:       kde-bugs-dist
Subject:    Bug#36247: noatun crashes on startup with SIGSEV
From:       ermak () netvision ! net ! il
Date:       2001-12-16 21:21:19
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Package: noatun
Version: KDE 2.2.2 
Severity: normal
Installed from:    Compiled From Sources
Compiler:          gcc-2.95.3
OS:                Linux
OS/Compiler notes: Gentoo Linux distribution (www.gentoo.org); bug present on all \
Gentoo installs, remedy unknown

This is a rather long explanation, please bear wih me. 
 
Summary: the problem is: when Noatun is started (as root, so there can be no \
permission problems) I get after about 2 secs:   
laptop /root # noatun 
kdecore (KLibLoader): library libnoatundcopiface.la not found under 'module' but \
                under 'lib' 
KCrash: crashing.... crashRecursionCounter = 2 
KCrash: Application Name = noatun path = <unknown> pid = 2586 
noatun: ERROR: KUniqueApplication: DCOP communication error! 
 
And the drkonqi backtrace: signal 11 (SIGSEV): 
(no debugging symbols found)...(no debugging symbols found)... 
(no debugging symbols found)...(no debugging symbols found)... 
0x411bb0c9 in wait4 () from /lib/libc.so.6 
#0  0x411bb0c9 in wait4 () from /lib/libc.so.6 
#1  0x4123903c in __check_rhosts_file () from /lib/libc.so.6 
#2  0x4132d294 in sigaction () from /lib/libpthread.so.0 
#3  0x4113c5c8 in sigaction () from /lib/libc.so.6 
#4  0x4008b735 in Engine::initArts () from /usr/lib/libnoatun.so.0 
#5  0x40089f81 in Engine::Engine () from /usr/lib/libnoatun.so.0 
#6  0x4008f403 in Player::Player () from /usr/lib/libnoatun.so.0 
#7  0x400932ef in NoatunApp::NoatunApp () from /usr/lib/libnoatun.so.0 
#8  0x40026d8e in main () from /usr/lib/libnoatunmain.so 
#9  0x4112a67c in __libc_start_main () from /lib/libc.so.6 
#10 0x8680804 in ?? () 
--- 
 
At the same time, artsd (run in a console) says: 
MCOP ObjectManager: can't find implementation for Noatun::Session. 
MCOP ObjectManager: can't find implementation for Noatun::StereoEffectStack. 
 
Details 
 
This is Gentoo Linux (www.gentoo.org). We have Portage, which is a ports system like \
the *bsd one - it downloads/configures/compiles/installs packages. I'm one of the KDE \
packagers.   
I was given instructions to have KDE in /usr as pe the FHS. I didn't agree 100%, but \
that discussion is closed. To enable e.g. kde2 apps to run wih kde3, I put kdelibs in \
/usr/lib/kdelibs-$version. Right now we don't have pre-kde3 versions in Portage, so \
the only such dir is /usr/lib/kdelibs-2.2.2. Portage passes the correct parameters to \
KDE confiures to make them use the kdelibs in there but install into /usr. All of KDE \
works ok, but I've had enough problems with this 'scheme' to suspect it as a possible \
and even likely culprit here as well.   
The problem described here exists on all Gentoo installs for kde >=2.2.1 (for <=2.2 \
we didn't have this kdelibs scheme yet and noatun seemed to work. But,  lot of other \
things have changed since then as well.)   
About the libnoatundcopiface.la from the error message: it exists in /usr/lib, as \
well as other libnoatun* libs. I don't know what the 'not found in 'module'' error \
could refer to - there's no dir called 'module' anywhere, nor have I ever heard of \
one.   
My entire system (and generally speaking nearly all Gentoo systems) have all the very \
latest software and the strongest optimizations. In my case: glibc-2.2.4, kernel \
2.4.16, X 4.1.0, QT 2.3.1 (since 2.3.2 has problems with kde), etc. etc. The entire \
system is compiled with CFLAGS, CXXFLAGS=-O3 -march=i686 -mcpu=i686 \
-fomit-frame-pointer -pipe, and all binaries are stripped. I recompiled kdemultimedia \
w/o optimizations and with debugging to get the above trace, but the error itself \
wasn't affected by that.   
Oh, and about artsd: it won't run here (len == can_write assertion fails on startup) \
but that's a problem with my sound driver (i810_audio from kernel 2.4.16), at least \
AFAIU. Hopefully it'll get fixed in 2.4.17, for now i'm using artsd -a null for \
testing of noatun.   
Well, that's it. I'd gladly run any tests/experiments/proposed solutions, being after \
all the maintainer for this. Waiting to hear from you!

(Submitted via bugs.kde.org)


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