I am currently running 3.2.3 and have found a set of configuration
files that results in a memory leak.
I have quite a few machines running nagios and all but one are running
happily with very similar configs (hosts/services differ from machine
to machine, but all other files are identical).
The short version of the problem (see the long version for Valgrind output)=
:
***************************************************************************=
*******
#### Snipit of hostgroup config file that doesn't work (identical on
all machines)
define hostgroup {
=A0=A0=A0 hostgroup_name Consumer Electronics
=A0=A0=A0 alias Consumer Electronics
}
#### running nagios -v ../nagios.cfg get this (please note, the
corrupt characters change every time I run the verify process)
.... lines ommited ....
=A0=A0=A0=A0=A0=A0=A0 Checked 15 hosts.
Checking host groups...
Error: Host '=E8=F0' specified in host group 'Consumer Electronics' is not
defined anywhere!
=A0=A0=A0=A0=A0=A0=A0 Checked 11 host groups.
.... lines ommited ....
Total Errors:=A0=A0 1
#### changing the "C" in consumer electronics to a "c" fixes it (or,
from a cursory check, any letters except "A", "B", or "C") - see
modified snipit
define hostgroup {
=A0=A0=A0 hostgroup_name consumer Electronics
=A0=A0=A0 alias Consumer Electronics
}
##### config check runs perfectly!!!
The longer version:
***************************************************************************=
***************
After seeing this problem, I recompiled nagios and installed using
"install-untstripped".
After that, I ran Valgrind against it and found some invalid reads.
Please see http://pastebin.com/JQYty7mb for the full output.
Part of the output is here:
Processing object config file '/usr/local/nagios/etc/globals/commands.cfg'.=
..
=3D=3D3640=3D=3D Invalid read of size 1
=3D=3D3640=3D=3D at 0x40E3FB7: strtok (in /lib/libc-2.5.so)
=3D=3D3640=3D=3D by 0x809E5C3: xodtemplate_register_objects (xodtemplate=
.c:9836)
=3D=3D3640=3D=3D by 0x80B3154: xodtemplate_read_config_data (xodtemplate=
.c:403)
=3D=3D3640=3D=3D by 0x8092F3A: read_object_config_data (objects.c:83)
=3D=3D3640=3D=3D by 0x8062D53: read_all_object_data (config.c:240)
=3D=3D3640=3D=3D by 0x80570DB: main (nagios.c:495)
=3D=3D3640=3D=3D Address 0x43851d0 is 16 bytes inside a block of size 17 f=
ree'd
=3D=3D3640=3D=3D at 0x402251D: free (vg_replace_malloc.c:325)
=3D=3D3640=3D=3D by 0x809FB89: xodtemplate_expand_hosts (xodtemplate.c:1=
4009)
=3D=3D3640=3D=3D by 0x80A2721: xodtemplate_expand_hostgroups_and_hosts
(xodtemplate.c:13734)
=3D=3D3640=3D=3D by 0x80A4686: xodtemplate_duplicate_objects (xodtemplat=
e.c:5563)
=3D=3D3640=3D=3D by 0x80B3326: xodtemplate_read_config_data (xodtemplate=
.c:359)
=3D=3D3640=3D=3D by 0x8092F3A: read_object_config_data (objects.c:83)
=3D=3D3640=3D=3D by 0x8062D53: read_all_object_data (config.c:240)
=3D=3D3640=3D=3D by 0x80570DB: main (nagios.c:495)
=3D=3D3640=3D=3D
=3D=3D3640=3D=3D Invalid read of size 1
=3D=3D3640=3D=3D at 0x40E3FDF: strtok (in /lib/libc-2.5.so)
=3D=3D3640=3D=3D by 0x809E5C3: xodtemplate_register_objects (xodtemplate=
.c:9836)
=3D=3D3640=3D=3D by 0x80B3154: xodtemplate_read_config_data (xodtemplate=
.c:403)
=3D=3D3640=3D=3D by 0x8092F3A: read_object_config_data (objects.c:83)
=3D=3D3640=3D=3D by 0x8062D53: read_all_object_data (config.c:240)
=3D=3D3640=3D=3D by 0x80570DB: main (nagios.c:495)
=3D=3D3640=3D=3D Address 0x43851d0 is 16 bytes inside a block of size 17 f=
ree'd
=3D=3D3640=3D=3D at 0x402251D: free (vg_replace_malloc.c:325)
=3D=3D3640=3D=3D by 0x809FB89: xodtemplate_expand_hosts (xodtemplate.c:1=
4009)
=3D=3D3640=3D=3D by 0x80A2721: xodtemplate_expand_hostgroups_and_hosts
(xodtemplate.c:13734)
=3D=3D3640=3D=3D by 0x80A4686: xodtemplate_duplicate_objects (xodtemplat=
e.c:5563)
=3D=3D3640=3D=3D by 0x80B3326: xodtemplate_read_config_data (xodtemplate=
.c:359)
=3D=3D3640=3D=3D by 0x8092F3A: read_object_config_data (objects.c:83)
=3D=3D3640=3D=3D by 0x8062D53: read_all_object_data (config.c:240)
=3D=3D3640=3D=3D
...[email truncated]...
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