Misconfigured tracing/logging can lead to hung threads in logging stack
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Key: QPID-3147
URL: https://issues.apache.org/jira/browse/QPID-3147
Project: Qpid
Issue Type: Bug
Components: C++ Client
Affects Versions: 0.10
Environment: Fedora 14 32-bit
Reporter: Pete MacKinnon
Priority: Minor
Given the following trace and logging environment variable mix-up like this:
QPID_TRACE=debug+
QPID_LOG_ENABLE=
A C++ client that embeds the Qpid runtime can get hung although it has
recognized the misconfiguration.
#0 0x00555416 in __kernel_vsyscall ()
#1 0x00f49367 in syscall () at ../sysdeps/unix/sysv/linux/i386/syscall.S:30
#2 0x002bbfca in __cxxabiv1::__cxa_guard_acquire (g=0x2171ea0)
at ../../../../libstdc++-v3/libsupc++/guard.cc:293
#3 0x020ca3b8 in instance ()
at /usr/include/boost/pool/detail/singleton.hpp:83
#4 qpid::log::Logger::instance () at qpid/log/Logger.cpp:47
#5 0x020cd324 in qpid::log::Statement::Initializer::Initializer (
this=0x2171b88, s=...) at qpid/log/Statement.cpp:61
#6 0x02075b6c in qpid::Exception::Exception (this=0x880b370, msg=
"Error in environment variables: in option 'trace': invalid bool value\n")
at qpid/Exception.cpp:31
#7 0x0208095d in Exception (this=0xbf8d0df0, argc=0, argv=0x0, configFile="",
allowUnknown=false) at ../include/qpid/Options.h:210
#8 qpid::Options::parse (this=0xbf8d0df0, argc=0, argv=0x0, configFile="",
allowUnknown=false) at qpid/Options.cpp:352
#9 0x020c9c57 in qpid::log::Logger::Logger (this=0x2171ec0)
at qpid/log/Logger.cpp:55
#10 0x020ca330 in instance ()
at /usr/include/boost/pool/detail/singleton.hpp:83
#11 object_creator () at /usr/include/boost/pool/detail/singleton.hpp:66
#12 __static_initialization_and_destruction_0 ()
at /usr/include/boost/pool/detail/singleton.hpp:95
#13 global constructors keyed to Logger.cpp(void) () at qpid/log/Logger.cpp:156
#14 0x020ebc6d in __do_global_ctors_aux () from /usr/lib/libqpidcommon.so.2
#15 0x01fc2a84 in _init () from /usr/lib/libqpidcommon.so.2
#16 0x004f68fc in call_init (l=<value optimized out>, argc=3, argv=0xbf8d1634,
env=0x87feb58) at dl-init.c:68
#17 0x004f6a19 in _dl_init (main_map=<value optimized out>, argc=3,
argv=0xbf8d1634, env=0x87feb58) at dl-init.c:132
#18 0x004fa74f in dl_open_worker (a=0xbf8d10d0) at dl-open.c:464
#19 0x004f6786 in _dl_catch_error (objname=0xbf8d10f8, errstring=0xbf8d10f4,
mallocedp=0xbf8d10ff, operate=0x4fa3b0 <dl_open_worker>, args=0xbf8d10d0)
at dl-error.c:178
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