Bug 62646 - Core was generated by load balancer with termination signal
Summary: Core was generated by load balancer with termination signal
Status: NEEDINFO
Alias: None
Product: Apache httpd-2
Classification: Unclassified
Component: Core (show other bugs)
Version: 2.4.25
Hardware: Other Linux
: P2 major (vote)
Target Milestone: ---
Assignee: Apache HTTPD Bugs Mailing List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-08-21 14:06 UTC by Technoreal
Modified: 2018-08-21 15:34 UTC (History)
0 users



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Description Technoreal 2018-08-21 14:06:17 UTC
Hi All,

  Application was running fine from past 1 year, All of a sudden we saw multiple core dump and its continuous, Back trace doesn't give much detail. Can any one help me to understand, Is there any reason for this cause / is this a bug fixed in later version

version : 2.4.25

GNU gdb (GDB) Red Hat Enterprise Linux (7.2-83.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/>.
Missing separate debuginfo for the main executable file
Try: yum --enablerepo='*-debug*' install /usr/lib/debug/.build-id/d5/d5b13dc8d6a4f41fbd6e60813a01fcb832c259
[New Thread 19097]
Core was generated by `/opt/load_balancer/bin/httpd -k start'.
Program terminated with signal 7, Bus error.
#0  0x00007fea0ac65c16 in ?? ()
(gdb) bt
#0  0x00007fea0ac65c16 in ?? ()
#1  0x00007ffd6c4e0df8 in ?? ()
#2  0x000000013ac09f0a in ?? ()
#3  0x00007ffd6c4e0e08 in ?? ()
#4  0x00007fea0d8f0663 in ?? ()
#5  0x0000000000000001 in ?? ()
#6  0x000000000041ed2d in ?? ()
#7  0x00007ffd00000001 in ?? ()
#8  0x000000323ae21188 in ?? ()
#9  0x0000000000000000 in ?? ()



In Error logs:

[Tue Aug 21 16:32:02.106153 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46101 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:04.108641 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46782 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:05.110790 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46826 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:05.110861 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46827 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:06.112012 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46861 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:06.112091 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46862 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:06.112128 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46864 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:06.112163 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46866 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:08.115291 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46874 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:09.117513 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46879 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:09.117574 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46880 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:10.118716 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46883 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:10.118788 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46884 exit signal Bus error (7), possible coredump in /opt/load_balancer
[Tue Aug 21 16:32:10.118826 2018] [core:notice] [pid 43375:tid 140643226507008] AH00051: child pid 46886 exit signal Bus error (7), possible coredump in /opt/load_balancer



Thanks in advance
Comment 1 Eric Covener 2018-08-21 15:34:03 UTC
You'll need to add symbols as per the initial gdb output.