Why core dump when start a memcacheq process on CentOS 6.8?

[kingkingho]

Linux system version： CentOS release 6.8 (Final) Kernel \r on an \m

Kernel version: Linux 2.6.32-642.3.1.el6.x86_64 #1 SMP Tue Jul 12 18:30:56 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Dependency software version： libevent-debuginfo-1.4.13-4.el6.x86_64 libevent-1.4.13-4.el6.x86_64 libevent-doc-1.4.13-4.el6.noarch libevent-headers-1.4.13-4.el6.noarch libevent-devel-1.4.13-4.el6.x86_64 BerkeleyDB-5.3.28

**Memcacheq version：**memcacheq-0.2.0.tar.gz Memcacheq configure arguments：./configure --enable-threads --with-bdb=/usr/local/BerkeleyDB

gdb infomations：

gdb /usr/local/bin/memcacheq core.28142

GNU gdb (GDB) Red Hat Enterprise Linux (7.2-90.el6) Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... Reading symbols from /usr/local/bin/memcacheq...done. [New Thread 28142] Missing separate debuginfo for Try: yum --enablerepo='-debug' install /usr/lib/debug/.build-id/f0/2ee57b3523e39b523b2bb515182b00c2c4ffdb Reading symbols from /lib64/libm-2.12.so...Reading symbols from /usr/lib/debug/lib64/libm-2.12.so.debug...done. done. Loaded symbols for /lib64/libm-2.12.so Reading symbols from /usr/local/BerkeleyDB-5.3.28/lib/libdb-5.3.so...Reading symbols from /usr/lib/debug/usr/local/BerkeleyDB-5.3.28/lib/libdb-5.3.so.debug... warning: "/usr/lib/debug/usr/local/BerkeleyDB-5.3.28/lib/libdb-5.3.so.debug": separate debug info file has no debug info (no debugging symbols found)...done. (no debugging symbols found)...done. Loaded symbols for /usr/local/BerkeleyDB-5.3.28/lib/libdb-5.3.so Reading symbols from /usr/lib64/libevent-1.4.so.2.1.3...Reading symbols from /usr/lib/debug/usr/lib64/libevent-1.4.so.2.1.3.debug...done. done. Loaded symbols for /usr/lib64/libevent-1.4.so.2.1.3 Reading symbols from /lib64/libc-2.12.so...Reading symbols from /usr/lib/debug/lib64/libc-2.12.so.debug...done. done. Loaded symbols for /lib64/libc-2.12.so Reading symbols from /lib64/libpthread-2.12.so...Reading symbols from /usr/lib/debug/lib64/libpthread-2.12.so.debug...done. [Thread debugging using libthread_db enabled] done. Loaded symbols for /lib64/libpthread-2.12.so Reading symbols from /lib64/libnsl-2.12.so...Reading symbols from /usr/lib/debug/lib64/libnsl-2.12.so.debug...done. done. Loaded symbols for /lib64/libnsl-2.12.so Reading symbols from /lib64/librt-2.12.so...Reading symbols from /usr/lib/debug/lib64/librt-2.12.so.debug...done. done. Loaded symbols for /lib64/librt-2.12.so Reading symbols from /lib64/libresolv-2.12.so...Reading symbols from /usr/lib/debug/lib64/libresolv-2.12.so.debug...done. done. Loaded symbols for /lib64/libresolv-2.12.so Reading symbols from /lib64/ld-2.12.so...Reading symbols from /usr/lib/debug/lib64/ld-2.12.so.debug...done. done. Loaded symbols for /lib64/ld-2.12.so Reading symbols from /lib64/libnss_db-2.2.3.so...Reading symbols from /usr/lib/debug/lib64/libnss_db-2.2.3.so.debug...done. done. Loaded symbols for /lib64/libnss_db-2.2.3.so Reading symbols from /lib64/libnss_files-2.12.so...Reading symbols from /usr/lib/debug/lib64/libnss_files-2.12.so.debug...done. done. Loaded symbols for /lib64/libnss_files-2.12.so Core was generated by `/usr/local/bin/memcacheq -l 0.0.0.0 -d -r -u root -r -m 256 -H /data/nosql/memc'. Program terminated with signal 11, Segmentation fault. #0 event_base_set (base=0x9b, ev=0x1d3ae10) at event.c:645

645 ev->ev_pri = base->nactivequeues/2; (gdb) bt #0 event_base_set (base=0x9b, ev=0x1d3ae10) at event.c:645 #1 0x00000000004062ad in setup_thread (nthreads=4, main_base=) at thread.c:307 #2 thread_init (nthreads=4, main_base=) at thread.c:455 #3 0x00000000004035b1 in main (argc=, argv=) at memcacheq.c:2265

(gdb) bt full #0 event_base_set (base=0x9b, ev=0x1d3ae10) at event.c:645

No locals. #1 0x00000000004062ad in setup_thread (nthreads=4, main_base=) at thread.c:307

No locals. #2 thread_init (nthreads=4, main_base=) at thread.c:455

    fds = {13, 14}
    i = \<value optimized out\>

#3 0x00000000004035b1 in main (argc=, argv=) at memcacheq.c:2265

    c = \<value optimized out\>
    do_daemonize = true
    maxcore = 1
    username = 0x7ffe636be848 "root"
    pid_file = 0x0
    pw = <value optimized out>
    sa = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x1000007f9}
    rlim = {rlim_cur = 65535, rlim_max = 65535}