Good afternoon

Our ns-slapd crashed earlier today, with a segfault in libback-ldbm.so
while the system was running a bdb_db_compact_one_db action.

Is there anyway to trackdown/diagnose what might have caused the
segfault? Some type of DB integrity check or something?

Nelson
Mar 18 15:10:07 my.server.name systemd-coredump[210954]: Process 3666 
(ns-slapd) of user 389 dumped core.
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9224] 
dhcp4 (eth0): option requested_ms_classless_static_routes => '1'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9224] 
dhcp4 (eth0): option requested_interface_mtu => '1'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9224] 
dhcp4 (eth0): option requested_host_name  => '1'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9224] 
dhcp4 (eth0): option requested_domain_search => '1'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9224] 
dhcp4 (eth0): option requested_domain_name_servers => '1'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9224] 
dhcp4 (eth0): option requested_domain_name => '1'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9224] 
dhcp4 (eth0): option requested_broadcast_address => '1'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9223] 
dhcp4 (eth0): option ip_address           => '172.31.9.167'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9223] 
dhcp4 (eth0): option interface_mtu        => '9001'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9223] 
dhcp4 (eth0): option host_name            => 'ip-172-31-9-167'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9223] 
dhcp4 (eth0): option expiry               => '1616051710'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9223] 
dhcp4 (eth0): option domain_name_servers  => '172.31.0.2'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9223] 
dhcp4 (eth0): option domain_name          => 'ap-northeast-1.compute.internal'
Mar 18 15:15:10 my.server.name NetworkManager[564]: <info>  [1616048110.9223] 
dhcp4 (eth0): option dhcp_lease_time      => '3600'
Mar 18 15:15:01 my.server.name sssd_kcm[210990]: Starting up
Mar 18 15:15:01 my.server.name audit[1]: SERVICE_START pid=1 uid=0 
auid=4294967295 ses=4294967295 subj=kernel msg='unit=sssd-kcm comm="systemd" 
exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=s>
Mar 18 15:15:01 my.server.name systemd[1]: Started SSSD Kerberos Cache Manager.
Mar 18 15:15:01 my.server.name systemd[1]: Starting SSSD Kerberos Cache 
Manager...
Mar 18 15:15:01 my.server.name CROND[210983]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
Mar 18 15:14:01 my.server.name CROND[210979]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
Mar 18 15:13:01 my.server.name CROND[210975]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
Mar 18 15:12:01 my.server.name CROND[210972]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
Mar 18 15:11:01 my.server.name CROND[210969]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
Mar 18 15:10:07 my.server.name audit: BPF prog-id=134 op=UNLOAD
Mar 18 15:10:07 my.server.name audit: BPF prog-id=135 op=UNLOAD
Mar 18 15:10:07 my.server.name audit: BPF prog-id=136 op=UNLOAD
Mar 18 15:10:07 my.server.name audit[1]: SERVICE_STOP pid=1 uid=0 
auid=4294967295 ses=4294967295 subj=kernel msg='unit=dirsrv@JPREP 
comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? re>
Mar 18 15:10:07 my.server.name systemd[1]: dirsrv@JPREP.service: Consumed 13h 
13min 1.190s CPU time.
Mar 18 15:10:07 my.server.name systemd[1]: dirsrv@JPREP.service: Failed with 
result 'signal'.
Mar 18 15:10:07 my.server.name systemd[1]: dirsrv@JPREP.service: Main process 
exited, code=killed, status=11/SEGV
Mar 18 15:10:07 my.server.name systemd[1]: systemd-coredump@0-210953-0.service: 
Consumed 5.486s CPU time.
Mar 18 15:10:07 my.server.name audit[1]: SERVICE_STOP pid=1 uid=0 
auid=4294967295 ses=4294967295 subj=kernel 
msg='unit=systemd-coredump@0-210953-0 comm="systemd" 
exe="/usr/lib/systemd/systemd" hostname=? addr=>
Mar 18 15:10:07 my.server.name systemd[1]: systemd-coredump@0-210953-0.service: 
Succeeded.
Mar 18 15:10:07 my.server.name systemd-coredump[210954]: Process 3666 
(ns-slapd) of user 389 dumped core.

                                                              Stack trace of 
thread 3668:
                                                              #0  
0x00007fbd9bc0f0bc bdb_db_compact_one_db (libback-ldbm.so + 0x6f0bc)
                                                              #1  
0x00007fbd9bc10024 checkpoint_threadmain (libback-ldbm.so + 0x70024)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3670:
                                                              #0  
0x00007fbda00e71eb __select (libc.so.6 + 0xf91eb)
                                                              #1  
0x00007fbda0610c94 DS_Sleep (libslapd.so.0 + 0xe5c94)
                                                              #2  
0x00007fbd9bc0b8a4 perf_threadmain (libback-ldbm.so + 0x6b8a4)
                                                              #3  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #4  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #5  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3671:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00007fbda05fc64d slapi_wait_condvar_pt (libslapd.so.0 + 0xd164d)
                                                              #2  
0x00007fbd9bc8c179 cos_cache_wait_on_change (libcos-plugin.so + 0x9179)
                                                              #3  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #4  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #5  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3672:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00007fbda05fc64d slapi_wait_condvar_pt (libslapd.so.0 + 0xd164d)
                                                              #2  
0x00007fbd9ba1fa51 roles_cache_wait_on_change (libroles-plugin.so + 0x6a51)
                                                              #3  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #4  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #5  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3674:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00007fbda02e4bc8 PR_WaitCondVar (libnspr4.so + 0x21bc8)
                                                              #2  
0x00007fbda05a687b eq_loop (libslapd.so.0 + 0x7b87b)
                                                              #3  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #4  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #5  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3675:
                                                              #0  
0x00007fbda028a9e8 pthread_cond_timedwait@@GLIBC_2.3.2 (libpthread.so.0 + 
0xf9e8)
                                                              #1  
0x00007fbda05a667e eq_loop_rel (libslapd.so.0 + 0x7b67e)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3676:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3677:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3679:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3682:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3683:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3686:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3687:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3688:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3690:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3691:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3678:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3673:
                                                              #0  
0x00007fbda028a9e8 pthread_cond_timedwait@@GLIBC_2.3.2 (libpthread.so.0 + 
0xf9e8)
                                                              #1  
0x00005653c5777d5a housecleaning (ns-slapd + 0x1fd5a)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3667:
                                                              #0  
0x00007fbda00e71eb __select (libc.so.6 + 0xf91eb)
                                                              #1  
0x00007fbda0610c94 DS_Sleep (libslapd.so.0 + 0xe5c94)
                                                              #2  
0x00007fbd9bc0bb2f deadlock_threadmain (libback-ldbm.so + 0x6bb2f)
                                                              #3  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #4  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #5  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3666:
                                                              #0  
0x00007fbda00e4a5f __poll (libc.so.6 + 0xf6a5f)
                                                              #1  
0x00007fbda02eed46 _pr_poll_with_poll (libnspr4.so + 0x2bd46)
                                                              #2  
0x00005653c5778ea6 slapd_daemon (ns-slapd + 0x20ea6)
                                                              #3  
0x00005653c576c01c main (ns-slapd + 0x1401c)
                                                              #4  
0x00007fbda00161e2 __libc_start_main (libc.so.6 + 0x281e2)
                                                              #5  
0x00005653c576d2ae _start (ns-slapd + 0x152ae)

                                                              Stack trace of 
thread 3669:
                                                              #0  
0x00007fbda00e71eb __select (libc.so.6 + 0xf91eb)
                                                              #1  
0x00007fbda0610c94 DS_Sleep (libslapd.so.0 + 0xe5c94)
                                                              #2  
0x00007fbd9bc0b977 trickle_threadmain (libback-ldbm.so + 0x6b977)
                                                              #3  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #4  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #5  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3684:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3681:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3680:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3685:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3689:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)
Mar 18 15:10:01 my.server.name CROND[210958]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
Mar 18 15:09:55 my.server.name systemd[1]: Started Process Core Dump (PID 
210953/UID 0).
Mar 18 15:09:55 my.server.name audit[1]: SERVICE_START pid=1 uid=0 
auid=4294967295 ses=4294967295 subj=kernel 
msg='unit=systemd-coredump@0-210953-0 comm="systemd" 
exe="/usr/lib/systemd/systemd" hostname=? addr>
Mar 18 15:09:55 my.server.name audit: BPF prog-id=136 op=LOAD
Mar 18 15:09:55 my.server.name audit: BPF prog-id=135 op=LOAD
Mar 18 15:09:55 my.server.name audit: BPF prog-id=134 op=LOAD
Mar 18 15:09:55 my.server.name systemd[1]: Created slice 
system-systemd\x2dcoredump.slice.
Mar 18 15:09:55 my.server.name audit[3666]: ANOM_ABEND auid=4294967295 uid=389 
gid=389 ses=4294967295 subj=kernel pid=3666 comm="ns-slapd" 
exe="/usr/sbin/ns-slapd" sig=11 res=1
Mar 18 15:09:55 my.server.name kernel: Code: ec 48 64 48 8b 04 25 28 00 00 00 
48 89 44 24 38 31 c0 48 8d 74 24 04 0f 11 44 24 10 48 c7 44 24 30 00 00 00 00 
0f 11 44 24 20 <ff> 97 d8 03 00 00 85 c0 0f 85 26 01 >
Mar 18 15:09:55 my.server.name kernel: ns-slapd[3668]: segfault at 3d8 ip 
00007fbd9bc0f0bc sp 00007fbd874d7310 error 4 in 
libback-ldbm.so[7fbd9bbba000+75000]
Mar 18 15:09:55 my.server.name kernel: show_signal_msg: 80 callbacks suppressed
Mar 18 15:09:55 my.server.name ns-slapd[3666]: [18/Mar/2021:15:09:55.892219408 
+0900] - NOTICE - bdb_db_compact_one_db - compactdb: compact userRoot - 5850 
pages freed
Mar 18 15:09:55 my.server.name ns-slapd[3666]: [18/Mar/2021:15:09:55.526029167 
+0900] - NOTICE - checkpoint_threadmain - Compacting DB start: userRoot
Mar 18 15:09:01 my.server.name CROND[210950]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
Mar 18 15:08:01 my.server.name CROND[210946]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3685:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)

                                                              Stack trace of 
thread 3689:
                                                              #0  
0x00007fbda028a6c2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf6c2)
                                                              #1  
0x00005653c5772847 connection_threadmain.lto_priv.0 (ns-slapd + 0x1a847)
                                                              #2  
0x00007fbda02ee150 _pt_root (libnspr4.so + 0x2b150)
                                                              #3  
0x00007fbda02843f9 start_thread (libpthread.so.0 + 0x93f9)
                                                              #4  
0x00007fbda00efb53 __clone (libc.so.6 + 0x101b53)
Mar 18 15:10:01 my.server.name CROND[210958]: (root) CMD (  php 
/usr/local/share/sync-script/scheduler.php 1>> /dev/null 2>&1)
Mar 18 15:09:55 my.server.name systemd[1]: Started Process Core Dump (PID 
210953/UID 0).
Mar 18 15:09:55 my.server.name audit[1]: SERVICE_START pid=1 uid=0 
auid=4294967295 ses=4294967295 subj=kernel 
msg='unit=systemd-coredump@0-210953-0 comm="systemd" 
exe="/usr/lib/systemd/systemd" hostname=? addr>
Mar 18 15:09:55 my.server.name audit: BPF prog-id=136 op=LOAD
Mar 18 15:09:55 my.server.name audit: BPF prog-id=135 op=LOAD
Mar 18 15:09:55 my.server.name audit: BPF prog-id=134 op=LOAD
Mar 18 15:09:55 my.server.name systemd[1]: Created slice 
system-systemd\x2dcoredump.slice.
Mar 18 15:09:55 my.server.name audit[3666]: ANOM_ABEND auid=4294967295 uid=389 
gid=389 ses=4294967295 subj=kernel pid=3666 comm="ns-slapd" 
exe="/usr/sbin/ns-slapd" sig=11 res=1
Mar 18 15:09:55 my.server.name kernel: Code: ec 48 64 48 8b 04 25 28 00 00 00 
48 89 44 24 38 31 c0 48 8d 74 24 04 0f 11 44 24 10 48 c7 44 24 30 00 00 00 00 
0f 11 44 24 20 <ff> 97 d8 03 00 00 85 c0 0f 85 26 01 >
Mar 18 15:09:55 my.server.name kernel: ns-slapd[3668]: segfault at 3d8 ip 
00007fbd9bc0f0bc sp 00007fbd874d7310 error 4 in 
libback-ldbm.so[7fbd9bbba000+75000]
Mar 18 15:09:55 my.server.name kernel: show_signal_msg: 80 callbacks suppressed
Mar 18 15:09:55 my.server.name ns-slapd[3666]: [18/Mar/2021:15:09:55.892219408 
+0900] - NOTICE - bdb_db_compact_one_db - compactdb: compact userRoot - 5850 
pages freed
Mar 18 15:09:55 my.server.name ns-slapd[3666]: [18/Mar/2021:15:09:55.526029167 
+0900] - NOTICE - checkpoint_threadmain - Compacting DB start: userRoot
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