[syslog-ng] [Bug 224] New: Segmentation fault in 3.3.7 and 3.4.1

[bugzilla at bugzilla.balabit.com]

https://bugzilla.balabit.com/show_bug.cgi?id=224

           Summary: Segmentation fault in 3.3.7 and 3.4.1
           Product: syslog-ng
           Version: 3.4.x
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: unspecified
         Component: syslog-ng
        AssignedTo: bazsi at balabit.hu
        ReportedBy: erempel at uvic.ca
Type of the Report: ---
   Estimated Hours: 0.0


Core dump back trace is

#0  0x00007f4020000528 in ?? ()
#1  0x00007f402a10b1a5 in log_msg_refcache_stop () at logmsg.c:1495
#2  0x00007f402a11760c in log_writer_flush (self=0xa0d460, flush_mode=LW_FLUSH_NORMAL) at logwriter.c:1043
#3  0x00007f402a1177ed in log_writer_work_perform (s=0xa0d460) at logwriter.c:129
#4  0x00007f402a117edb in main_loop_io_worker_job_start (self=0xa0d650) at mainloop.c:371
#5  0x00007f402a1341ca in iv_work_thread_do_work (_thr=0xabdd20) at iv_work.c:118
#6  0x00007f402a13352a in iv_run_tasks (st=0x7f400c40a130) at iv_task.c:48
#7  0x00007f402a13574c in iv_main () at iv_main_posix.c:106
#8  0x00007f402a133fe1 in iv_work_thread (_thr=0xabdd20) at iv_work.c:200
#9  0x00007f402a1361b8 in iv_thread_handler (_thr=0xabddf0) at iv_thread_posix.c:142
#10 0x00007f4028d82851 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f4028ad011d in clone () from /lib64/libc.so.6

some times 
#2  0x00007f402a11760c in log_writer_flush (self=0xa0d460, flush_mode=LW_FLUSH_NORMAL) at logwriter.c:1043
is
#2  0x00007f402a11760c in log_writer_flush (self=0x9b3970, flush_mode=LW_FLUSH_BUFFER) at logwriter.c:1043

of course when this happens all buffers are lost. So much for reliable log tansport :-(


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