[kde-freebsd] area51 some problems

[Schaich Alonso]

On Tue, 10 Dec 2013 00:27:02 +0200
Raphael Kubo da Costa <rakuco at FreeBSD.org> wrote:

> Schaich Alonso <alonsoschaich at fastmail.fm> writes:
> 
> > Am I right to assume you are using FreeBSD-10? lumiwa at gmail.com reported
> > this about a month ago and I was able reproduce crashes running
> > # nepomukctl status
> > on 10 but not on 9. IIRC this was related to C++ global instance
> > destruction order or something like that.
> 
> Interesting, I'm also able to reproduce the crash on my 11-CURRENT
> system with KDE from git master. It really looks related to libcxxrt
> being used instead of libstdc++ (which explains why it works on anything
> < 10).
> 
> The backtrace looks like this:
> 
> #0  0x00000008023c6a2a in thr_kill () from /lib/libc.so.7
> #1  0x000000080248d359 in abort () from /lib/libc.so.7
> #2  0x0000000801d158e9 in __cxa_pure_virtual () from /lib/libcxxrt.so.1
> #3  0x000000080095b898 in QTextCodec::fromUnicode (this=0x8044181f0,
> #in=0x8044a099a, length=27, state=0x8044a2160)
> #at /s/kde/src/build/qt4/src/corelib/../../include/QtCore/../../../../qt4/src/corelib/codecs/qtextcodec.h:118
> #4  0x00000008009ca468 in QTextStreamPrivate::flushWriteBuffer
> #(this=0x8044a2100) at /s/kde/src/qt4/src/corelib/io/qtextstream.cpp:674 5
> #0x00000008009cb716 in QTextStream::~QTextStream (this=0x60b5e0 <out>)
> #at /s/kde/src/qt4/src/corelib/io/qtextstream.cpp:1149 6
> #0x0000000802469b4b in __cxa_finalize () from /lib/libc.so.7 7
> #0x000000080241133c in exit () from /lib/libc.so.7 8  0x00000000004028c6 in
> #_start ()
> 
> Some quick investigation shows that QIconvCodec ends up being destroyed
> before all the objects that use it, and at the point of the crash
> there's a call to a pointer that used to be a QIconvCodec and is now
> just a QTextCodec, and the method call goes to a pure virtual method.
> 
> To be honest, I'm not sure if this is related to the lots of iconv
> changes that went into HEAD during the past few months or if it's just
> libcxxrt-related (or even if it's a bug on FreeBSD at all, for that
> matter).
> 
> Alonso, do you have a link to the thread you mentioned?

http://mail.kde.org/pipermail/kde-freebsd/2013-November/016355.html