Forum: Cfengine Help
Subject: Re: cf-agent segfaulting
Author: msvob...@linkedin.com
Link to topic: https://cfengine.com/forum/read.php?3,17904,17921#msg-17921
cf-promises looks happy.
$ /var/cfengine/bin/cf-promises -f /var/cfengine/inputs/promises.cf -v
cf3 Cfengine - autonomous configuration engine - commence self-diagnostic
prelude
cf3 ------------------------------------------------------------------------
cf3 Work directory is /var/cfengine
cf3 Making sure that locks are private...
cf3 Checking integrity of the state database
cf3 Checking integrity of the module directory
cf3 Checking integrity of the PKI directory
cf3 Looking for a source of entropy in /var/cfengine/randseed
cf3 Loaded /var/cfengine/ppkeys/localhost.priv
cf3 Loaded /var/cfengine/ppkeys/localhost.pub
cf3 No registered cfengine service, using default
cf3 !!! System error for getservbyname: "Error 0"
cf3 Setting cfengine default port to 5308 = 5308
cf3 Reference time set to Mon Aug 16 08:03:32 2010
cf3 Cfengine - 3.0.4 (C) Cfengine AS 2008-
cf3 ------------------------------------------------------------------------
cf3 Host name is: xxxxxxxx
cf3 Operating System Type is sunos
cf3 Operating System Release is 5.10
cf3 Architecture = i86pc
cf3 Using internal soft-class solarisx86 for host xxxxxxxxxx
cf3 The time is now Mon Aug 16 08:03:32 2010
cf3 ------------------------------------------------------------------------
cf3 # Extended system discovery is only available in version Nova and above
cf3 Additional hard class defined as: 32_bit
cf3 Additional hard class defined as: sunos_5_10
cf3 Additional hard class defined as: sunos_i86pc
cf3 Additional hard class defined as: sunos_i86pc_5_10
cf3 Additional hard class defined as: i386
cf3 Additional hard class defined as: i86pc
cf3 GNU autoconf class from compile time: compiled_on_solaris2_10
cf3 Address given by nameserver: xxxxxxxxxxxx
cf3 Interface 2: nge2
cf3 Adding alias loghost..
cf3 Interface 4: nge3
cf3 Trying to locate my IPv6 address
cf3 Looking for environment from cf-monitor...
cf3 Unable to detect environment from cfMonitord
cf3 ***********************************************************
cf3 Loading persistent classes
cf3 ***********************************************************
cf3 ***********************************************************
cf3 Loaded persistent memory
cf3 ***********************************************************
cf3 > Parsing file /var/cfengine/inputs/promises.cf
cf3 Initiate variable convergence...
cf3 -> Checking common class promises...
cf3 Executing and using module
cf3 Activated classes: app_server
cf3 Executing and using module
cf3 Activated classes: ESV4
cf3 Activated classes: STG
cf3 Initiate control variable convergence...
cf3 > Parsing file /var/cfengine/inputs/cfengine_stdlib.cf
cf3 > Parsing file /var/cfengine/inputs/cf-execd.cf
cf3 > Parsing file /var/cfengine/inputs/cf-monitord.cf
cf3 > Parsing file /var/cfengine/inputs/cf-report.cf
cf3 > Parsing file /var/cfengine/inputs/cfengine_startup_scripts_manifests.cf
cf3 Initiate variable convergence...
cf3 -> Checking common class promises...
cf3 # Knowledge map reporting feature is only available in version Nova and
above
cf3 -> Defined classes = { xxxxxxxxxxx 32_bit August Day16 ESV4 GMT_Hr15 Hr08
Hr08_Q1 Lcycle_0 Min00_05 Min03 Monday Morning Q1 STG Yr2010 any app_server
cfengine_3 cfengine_3_0 cfengine_3_0_4 common community_edition
compiled_on_solaris2_10 xxxxxxxxxxxx loghost net_iface_lo0 net_iface_nge2
net_iface_nge2_1 net_iface_nge3 solarisx86 stg sunos_5_10 sunos_i86pc
sunos_i86pc_5_10 sunos_i86pc_5_10_Generic_142901_02 verbose_mode }
cf3 -> Negated Classes = { }
cf3 Initiate variable convergence...
cf3 -> Checking common class promises...
cf3 Initiate control variable convergence...
cf3 -> Inputs are valid
Here's the backtrace:
$ gdb /var/cfengine/bin/cf-agent
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
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 "i386-pc-solaris2.10"...
(gdb) run -v
Starting program: /var/cfengine/bin/cf-agent -v
warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)
warning: Lowest section in /usr/lib/libpthread.so.1 is .dynamic at 00000074
warning: Lowest section in /usr/lib/libthread.so.1 is .dynamic at 00000074
cf3 Cfengine - autonomous configuration engine - commence self-diagnostic
prelude
cf3 ------------------------------------------------------------------------
cf3 Work directory is /var/cfengine
cf3 Making sure that locks are private...
cf3 Checking integrity of the state database
cf3 Checking integrity of the module directory
cf3 Checking integrity of the PKI directory
cf3 Looking for a source of entropy in /var/cfengine/randseed
cf3 Loaded /var/cfengine/ppkeys/localhost.priv
cf3 Loaded /var/cfengine/ppkeys/localhost.pub
cf3 No registered cfengine service, using default
cf3 !!! System error for getservbyname: "Error 0"
cf3 Setting cfengine default port to 5308 = 5308
cf3 Reference time set to Mon Aug 16 08:02:54 2010
cf3 Cfengine - 3.0.4 (C) Cfengine AS 2008-
cf3 ------------------------------------------------------------------------
cf3 Host name is: xxxxxxxxxx
cf3 Operating System Type is sunos
cf3 Operating System Release is 5.10
cf3 Architecture = i86pc
cf3 Using internal soft-class solarisx86 for host xxxxxxxxxxxx
cf3 The time is now Mon Aug 16 08:02:54 2010
cf3 ------------------------------------------------------------------------
cf3 # Extended system discovery is only available in version Nova and above
cf3 Additional hard class defined as: 32_bit
cf3 Additional hard class defined as: sunos_5_10
cf3 Additional hard class defined as: sunos_i86pc
cf3 Additional hard class defined as: sunos_i86pc_5_10
cf3 Additional hard class defined as: i386
cf3 Additional hard class defined as: i86pc
cf3 GNU autoconf class from compile time: compiled_on_solaris2_10
cf3 Address given by nameserver: xxxxxxxxxx
cf3 Interface 1: lo0
cf3 Interface 2: nge2
cf3 Adding alias loghost..
cf3 Interface 4: nge3
cf3 Trying to locate my IPv6 address
cf3 Looking for environment from cf-monitor...
cf3 Unable to detect environment from cfMonitord
cf3 ***********************************************************
cf3 Loading persistent classes
cf3 ***********************************************************
cf3 ***********************************************************
cf3 Loaded persistent memory
cf3 ***********************************************************
cf3 > Verifying the syntax of the inputs...
cf3 > Parsing file /var/cfengine/inputs/promises.cf
cf3 Initiate variable convergence...
cf3 -> Checking common class promises...
cf3 Executing and using module
cf3 Activated classes: app_server
cf3 Executing and using module
cf3 Activated classes: ESV4
cf3 Activated classes: STG
cf3 Initiate control variable convergence...
cf3 > Parsing file /var/cfengine/inputs/cfengine_stdlib.cf
cf3 > Parsing file /var/cfengine/inputs/cf-execd.cf
cf3 > Parsing file /var/cfengine/inputs/cf-monitord.cf
cf3 > Parsing file /var/cfengine/inputs/cf-report.cf
cf3 > Parsing file /var/cfengine/inputs/cfengine_startup_scripts_manifests.cf
cf3 Initiate variable convergence...
cf3 -> Checking common class promises...
Program received signal SIGSEGV, Segmentation fault.
0x080953ff in EvaluateORString (class=0x796e61 , list=0x0, fromIsInstallable=0)
at env_context.c:866
866 env_context.c: No such file or directory.
in env_context.c
(gdb) back
#0 0x080953ff in EvaluateORString (class=0x796e61 , list=0x0,
fromIsInstallable=0)
at env_context.c:866
#1 0x080955af in IsDefinedClass (class=0x796e61 ) at env_context.c:844
#2 0x08095780 in EvalClassExpression (cp=0x8361c90, pp=0x839a940) at
env_context.c:648
#3 0x08095c4d in KeepClassContextPromise (pp=0x839a940) at env_context.c:60
#4 0x08092225 in CheckCommonClassPromises (classlist=0x836ffe0) at
generic_agent.c:1379
#5 0x0809235b in HashVariables () at generic_agent.c:1647
#6 0x08092aab in Cf3ParseFiles () at generic_agent.c:557
#7 0x08092bc4 in ReadPromises (ag=cf_agent, agents=0x8272d6f "agent") at
generic_agent.c:195
#8 0x08092e0a in GenericInitialize (argc=2, argv=0x804785c, agents=0x8272d6f
"agent") at generic_agent.c:106
#9 0x08086d39 in main (argc=2, argv=0x804785c) at agent.c:138
And here are my configs:
$ cat promises.cf
body common control
{
bundlesequence => {
"garbage_collection",
"cfengine_startup_scripts_manifests",
};
inputs => {
# Separate config files for each CFEngine daemon and
the standard library.
"cfengine_stdlib.cf",
"cf-execd.cf",
"cf-monitord.cf",
"cf-report.cf",
# Phase 1 configurations
"cfengine_startup_scripts_manifests.cf",
};
}
#######################################################
bundle common global
{
# Define some global variables
vars:
"masterfiles" string =>
"/var/cfengine/masterfiles";
"inputs" string => "/var/cfengine/inputs";
"workdir" string => "/var/cfengine";
classes:
# Define classes for app,db,hadoop server for group manifests
"no_class_defined" or =>
usemodule("module_machine_type","");
# Define the colocation facility we are in, and which environment
(PROD, STG, DR, etc.)
"no_site_env_defined" or =>
usemodule("module_site_env","");
}
#######################################################
body agent control
{
# if default runtime is 5 mins we need this for long jobs
ifelapsed => "15";
# Allow us to use DNS
skipidentify => "false";
}
#######################################################
$ cat cf-execd.cf
body executor control
{
# In the lab, set splaytime = 1 for quick updates. In Prod, make sure
this is at least 10 minutes
splaytime => "1";
mailto => xxxxxxxxxxxxxxxxxx
mailfrom => "r...@$(sys.host)";
smtpserver => "localhost";
schedule => { "Min00", "Min05", "Min10", "Min15",
"Min20", "Min25", "Min30", "Min35", "Min40", "Min45", "Min50", "Min55" };
executorfacility => "LOG_DAEMON";
# This is the command that actually drives cf-execd to execute cf-agent
on the schedule above.
exec_command => "${sys.workdir}/bin/cf-agent -f
failsafe.cf && ${sys.workdir}/bin/cf-agent";
}
##########################################
bundle agent garbage_collection
{
files:
"$(sys.workdir)/outputs"
delete => tidy,
file_select => days_old("3"),
depth_search => recurse("inf");
}
$ cat cf-monitord.cf
body monitor control
{
forgetrate => "0.7";
histograms => "true";
monitorfacility => "LOG_DAEMON";
}
$ cat cf-report.cf
body reporter control
{
reports => { "all" };
build_directory => "$(sys.workdir)/reports";
report_output => "text";
time_stamps => "true";
}
And finally, the policy causing the segfault.
$ cat cfengine_startup_scripts_manifests.cf
bundle agent cfengine_startup_scripts_manifests
{
files:
# Linux or Solaris, doesn't matter. Copy the startup scripts into
place.
"/var/cfengine/etc"
handle =>
"startup_scripts_for_all_cfengine_daemons",
perms => mog("700","root","root"),
copy_from =>
no_backup_cp("/var/cfengine/inputs/config-general/cfengine_startup_scripts_manifests"),
depth_search => recurse("inf"),
action => immediate;
# For Solaris, verify that the SMF manifests are there. They aren't
actually directly called
# because they are imported into the SMF repository, but this is where
they belong.
sunos_5_10::
"/var/cfengine/etc"
handle =>
"SMF_manifests_for_all_cfengine_daemons",
perms =>
mog("700","root","root"),
copy_from =>
no_backup_cp("/var/cfengine/inputs/config-solaris/cfengine_startup_scripts_manifests"),
depth_search => recurse("inf"),
action => immediate;
}
If I comment out the sunos_5_10:: promise, the segfault goes away -- so the
problem is somewhere in there. This isn't a road block for me at the moment,
but if I am writing my policies incorrectly or doing something wrong it would
be helpful to know.
Thanks!
Mike
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