Package: libqt4-core
Version: 4.0.1-5
Followup-For: Bug #342658
I built your program like this
$ qmake-qt4 -project test.cpp
$ qmake-qt4 qt.pro
$ make
It seems this is a locking issue, a backtrace of when it is hung is below
(gdb) back
#0 0x2000000001363d81 in __pthread_sigsuspend (set=0x60000fffffbf7270)
at ../linuxthreads/sysdeps/unix/sysv/linux/ia64/pt-sigsuspend.c:32
#1 0x2000000001362380 in __pthread_wait_for_restart_signal (self=0x200000000137edc8) at pthread.c:1216
#2 0x200000000135d050 in __pthread_cond_wait (cond=0x6000000000004338, mutex=0x60000000000042e0) at restart.h:34
#3 0x200000000103f400 in QReadWriteLock::lockForWrite () from /usr/lib/libQtCore.so.4
#4 0x20000000011d0340 in qt_addObject () from /usr/lib/libQtCore.so.4
#5 0x20000000011d0e50 in QObject::QObject () from /usr/lib/libQtCore.so.4
#6 0x2000000001184e20 in QFactoryLoader::QFactoryLoader () from /usr/lib/libQtCore.so.4
#7 0x200000000120b670 in QTextDecoder::~QTextDecoder () from /usr/lib/libQtCore.so.4
#8 0x2000000001210ef0 in QTextCodec::codecForName () from /usr/lib/libQtCore.so.4
#9 0x200000000120c160 in QTextEncoder::fromUnicode () from /usr/lib/libQtCore.so.4
#10 0x200000000120efd0 in QTextCodec::codecForLocale () from /usr/lib/libQtCore.so.4
#11 0x20000000010b30d0 in QString::toLocal8Bit () from /usr/lib/libQtCore.so.4
#12 0x20000000010e04b0 in locale_encode () from /usr/lib/libQtCore.so.4
#13 0x20000000010e06f0 in QFile::encodeName () from /usr/lib/libQtCore.so.4
#14 0x20000000010f8e20 in QFileEngineHandler::QFileEngineHandler () from /usr/lib/libQtCore.so.4
#15 0x20000000010e5460 in QFile::open () from /usr/lib/libQtCore.so.4
#16 0x4000000000001070 in main ()
It seems that lock in qt_addObject has already been taken by
something. Has anything changed in this area recently?
BTW, using the libQtCore_debug.so.4 library didn't give me any useful
line numbers or other debugging info. If you load it into gdb and run
'info functions' all the symbols are defined as non-debugging symbols.
This may have something to do with the way it was built.
-i
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: ia64
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.14-rc4-gbb7e257e
Locale: LANG=en_AU, LC_CTYPE=en_AU (charmap=ISO-8859-1)
Versions of packages libqt4-core depends on:
ii libc6.1 2.3.5-7 GNU C Library: Shared libraries an
ii libfontconfig1 2.3.2-1.1 generic font configuration library
ii libgcc1 1:4.0.2-5 GCC support library
ii libstdc++6 4.0.2-5 The GNU Standard C++ Library v3
ii libunwind7 0.98.5-8 A library to determine the call-ch
ii zlib1g 1:1.2.3-6 compression library - runtime
libqt4-core recommends no packages.
-- no debconf information
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