[LOGCXX-352] crash on program exit

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: 0.10.0
• Component/s: Core
• Environment: Linux with g++ 4.4.1
• Assignee: Curt Arnold
• Reporter: Thorsten Zachmann
• Created: 09/Dec/09 04:34
• Updated: 07/Aug/20 16:25
• Resolved: 07/Aug/20 16:25

Description

I will attach a test program once I submitted the bug report.

If it is compiled the like the following

g++ Foo.cpp log4cxxtest.cpp -llog4cxx -o crash

it crashes. Here is the output of gdb:

> gdb ./crash
(gdb) r
Starting program: /home/tz/develop/astaro/crash
[Thread debugging using libthread_db enabled]
Foo(2) 0x616490
0 [0x7ffff7fcf750] DEBUG Foo null - Foo()
~Foo(2) 0x616490

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7dc9230 in vtable for log4cxx::helpers::ObjectPtrBase () from /usr/lib/liblog4cxx.so.10
(gdb) bt
#0 0x00007ffff7dc9230 in vtable for log4cxx::helpers::ObjectPtrBase () from /usr/lib/liblog4cxx.so.10
#1 0x00007ffff7b19958 in log4cxx::Logger::isDebugEnabled() const () from /usr/lib/liblog4cxx.so.10
#2 0x0000000000401a71 in Foo::~Foo() ()
#3 0x0000000000402033 in std::auto_ptr<Foo>::~auto_ptr() ()
#4 0x00007ffff6f1cc12 in __run_exit_handlers (status=0) at exit.c:78
#5 *__GI_exit (status=0) at exit.c:100
#6 0x00007ffff6f02ac4 in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>,
init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffffffe298)
at libc-start.c:252
#7 0x0000000000401539 in _start () at ../sysdeps/x86_64/elf/start.S:113
(gdb)

If the order is changed to the following

> g++ log4cxxtest.cpp Foo.cpp -llog4cxx -o nocrash
> ./nocrash
Foo(2) 0xd86490
0 [0x7f7ad0061750] DEBUG Foo null - Foo()
~Foo(2) 0xd86490
0 [0x7f7ad0061750] DEBUG Foo null - ~Foo()

all works without problems.

Issue Links

• duplicates: LOGCXX-322 Crashes on exit from multithreaded program using log4cxx
• is related to: LOGCXX-322 Crashes on exit from multithreaded program using log4cxx