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Re: "double-free or corruption" in monit 4.9 on 64-bit RHEL4

From: Martin Pala
Subject: Re: "double-free or corruption" in monit 4.9 on 64-bit RHEL4
Date: Fri, 13 Apr 2007 20:44:14 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20070217 Iceape/1.0.8 (Debian-1.0.8-4)

... it seems that there is some bug.

Can you please?:

1.) provide your monit configuration

2,) set 'ulimit -c unlimited' and rerun the 'monit ... status'? (should dump core)

3.) run 'gdb /opt/monit/bin/monit /path/to/core', then in the gdb prompt call 'bt' ... and provide the output?


Stephen Dowdy wrote:
Known issue?

address@hidden /opt/monit/bin/monit -c /etc/opt/monit/monitrc status

The monit daemon 4.9 uptime: 1h 0m

Process 'sshd'
  status                            running
(all monit'd functions display a status, but the final lines are:)
System 'ingest.XXXXXXXX'
  status                            running
  monitoring status                 monitored
  load average                      [2.93] [1.39] [1.09]
  cpu                               60.9%us 3.2%sy 4.3%wa
  memory usage                      1137196 kB [55.3%]
  data collected                    Thu Apr 12 21:16:01 2007

*** glibc detected *** double free or corruption (fasttop):
0x0000000000569fa0 ***

address@hidden file /opt/monit/bin/monit
/opt/monit/bin/monit: ELF 64-bit LSB executable, AMD x86-64, version 1
(SYSV), for GNU/Linux 2.4.0, dynamically linked (uses shared libs), stripped

address@hidden includes]# uname -a
Linux ingest.XXXXXX 2.6.9-42.0.10.ELsmp #1 SMP Fri Feb 16 17:13:42 EST 2007
x86_64 x86_64 x86_64 GNU/Linux

address@hidden includes]# cat /etc/redhat-release
Red Hat Enterprise Linux WS release 4 (Nahant Update 4)


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