[rt-users] RT 3.8.4 Apache2 Segmentation Fault

raymond at pilotsupplies.com raymond at pilotsupplies.com
Mon Jul 27 16:18:51 EDT 2009


ubuntu 9.04
Xeon Processor
4GB memory
LDAP AD authentication windows 2003 
upgrade from 3.2.2 to 3.8.4 everthing appears to be ok.
server is running RT3 and nothing else.


When there is a period of inactivity, particular for a few hours, and when 
a user logs back in, the apache error logs indicates
"Mon Jul 27 10:48:21 2009] [notice] child pid 2894 exit signal 
Segmentation fault (11"

the webpage became white and multiple refresh of the page bring rt website 
back to the logon page.

When a user logs back in and apply the "Refresh this page every X minutes, 
than there is no segmentation fault on the apache log and all appears to 
be well.

There is no indication what the problem is on the logs /var/log/messages, 
/var/log/syslog, /var/log/rt.log /opt/rt3/var/log/apache2.error before or 
after "segemntation fault" for me to properly diagnoise this.

I have played with the numbers on the apache2 and mysql links below  and 
still can't resolve this.


below are my httpd.conf file and RT system configuration (santized) - 
hope someone can shed some light on this.
Appreciate your assistance!

Timeout 300
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 15
MinSpareServers 5
MaxSpareServers 10
StartServers 5
MaxClients 150
MaxRequestsPerChild 100

<VirtualHost *:80>
DocumentRoot /opt/rt3/share/html
ServerName ticket.helpdesk.abc.com
ServerAlias ticket.*
AddDefaultCharset UTF-8
ServerAdmin helpme at abc.com

#optional apache logs for RT
ErrorLog /opt/rt3/var/log/apache2.error
TransferLog /opt/rt3/var/log/apache2.access
Alias /rt/ /opt/rt3/share/html/

<Directory /opt/rt3/share/html/>
Order allow,deny
Allow from all

#PerlModule Apache::DBI
PerlRequire /opt/rt3/bin/webmux.pl
PerlSetVar MasonStaticSource true
PerlSetVar MasonBufferPreallocateSize 1073741824
#PerlSetVar MasonBufferPreallocateSize 4096000
PerlSetVar MasonDataCacheDefaults "cache_class=> MemoryCache, cache_depth => 4"
PerlSetVar MasonPreloads '/Elements/*'
PerlSetVar MasonCompRoot /opt/rt3

<Location /NoAuth/images>
SetHandler default

<Location />
#AddDefaultCharset UTF-8
SetHandler perl-script
PerlHandler RT::Mason
#PerlResponseHandler RT::Mason


#####RT system configuration

System Configuration

     * System Configuration
     * · Shredder

Loaded perl modules

Perl v5.10.0 under linux
   Apache2::Const v2.000004;
   Apache2::Log v2.000004;
   Apache2::RequestIO v2.000004;
   Apache2::RequestRec v2.000004;
   Apache2::RequestUtil v2.000004;
   Apache2::Response v2.000004;
   Apache2::ServerUtil v2.000004;
   Apache2::Status v4.00;
   Apache::Session v1.88;
   Apache::Session::Generate::MD5 v2.12;
   Apache::Session::Lock::MySQL v1.01;
   Apache::Session::MySQL v1.01;
   Apache::Session::Serialize::Storable v1.01;
   Apache::Session::Store::DBI v1.02;
   Apache::Session::Store::MySQL v1.04;
   APR v0.009000;
   APR::Pool v0.009000;
   APR::Table v0.009000;
   AutoLoader v5.63;
   base v2.13;
   bytes v1.03;
   Cache::Simple::TimedExpiry v0.27;
   Carp v1.08;
   CGI v3.43;
   CGI::Cookie v1.29;
   CGI::Util v1.5_01;
   Class::Accessor v0.31;
   Class::Accessor::Fast v0.31;
   Class::Container v0.12;
   Class::Data::Inheritable v0.08;
   Class::Inspector v1.24;
   Class::ISA v0.33;
   Class::ReturnValue v0.55;
   Clone v0.31;
   constant v1.13;
   Convert::ASN1 v0.22;
   CSS::Squish v0.08;
   Cwd v3.2501;
   Data::Dumper v2.121_14;
   Date::Format v2.22;
   Date::Parse v2.27;
   DateTime v0.50;
   DateTime::Locale v0.43;
   DateTime::TimeZone v0.91;
   DateTime::TimeZone::Floating v0.01;
   DateTime::TimeZone::Local v0.01;
   DateTime::TimeZone::OffsetOnly v0.02;
   DateTime::TimeZone::UTC v0.01;
   DBD::mysql v4.008;
   DBI v1.607;
   DBIx::SearchBuilder v1.55;
   DBIx::SearchBuilder::Union v0;
   DBIx::SearchBuilder::Unique v0.01;
   Devel::StackTrace v1.21;
   Devel::StackTraceFrame v1.21;
   Digest::base v1.00;
   Digest::MD5 v2.39;
   DynaLoader v1.08;
   Email::Address v1.889;
   Encode v2.23;
   Encode::Alias v2.07;
   Encode::Config v2.04;
   Encode::Encoding v2.05;
   Errno v1.1;
   Exception::Class v1.29;
   Exception::Class::Base v1.20;
   Exporter v5.62;
   Exporter::Heavy v5.62;
   Fcntl v1.06;
   File::Basename v2.76;
   File::Glob v1.06;
   File::Path v2.04;
   File::ShareDir v1.00;
   File::Spec v3.2501;
   File::Spec::Unix v3.2501;
   File::Temp v0.18;
   FileHandle v2.01;
   GD v2.44;
   GD::Image v2.38;
   GraphViz v2.04;
   HTML::Element v3.23;
   HTML::Entities v3.60;
   HTML::Formatter v2.04;
   HTML::FormatText v2.04;
   HTML::Mason v1.42;
   HTML::Mason::ApacheHandler v1.69;
   HTML::Mason::Exception v1.1;
   HTML::Mason::Exception::Abort v1.1;
   HTML::Mason::Exception::Compilation v1.1;
HTML::Mason::Exception::Compilation::IncompatibleCompiler v1.1;
   HTML::Mason::Exception::Compiler v1.1;
   HTML::Mason::Exception::Decline v1.1;
   HTML::Mason::Exception::Params v1.1;
   HTML::Mason::Exception::Syntax v1.1;
   HTML::Mason::Exception::System v1.1;
   HTML::Mason::Exception::TopLevelNotFound v1.1;
   HTML::Mason::Exception::VirtualMethod v1.1;
   HTML::Mason::Exceptions v1.43;
   HTML::Parser v3.61;
   HTML::Scrubber v0.08;
   HTML::Tagset v3.20;
   HTML::TreeBuilder v3.23;
   I18N::LangTags v0.35;
   I18N::LangTags::Detect v1.03;
   integer v1.00;
   IO v1.23_01;
   IO::File v1.14;
   IO::Handle v1.27;
   IO::InnerFile v2.110;
   IO::Lines v2.110;
   IO::ScalarArray v2.110;
   IO::Seekable v1.1;
   IO::Select v1.17;
   IO::Socket v1.30_01;
   IO::Socket::INET v1.31;
   IO::Socket::UNIX v1.23;
   IO::WrapTie v2.110;
   IPC::Open2 v1.02;
   IPC::Open3 v1.02;
   IPC::Run v0.84;
   IPC::Run::Debug v0.84;
   IPC::Run::IO v0.84;
   IPC::Run::Timer v0.84;
   List::MoreUtils v0.22;
   List::Util v1.19;
   Locale::Maketext v1.12;
   Locale::Maketext::Fuzzy v0.10;
   Locale::Maketext::Lexicon v0.77;
   Locale::Maketext::Lexicon::Gettext v0.17;
   Log::Dispatch v2.22;
   Log::Dispatch::Base v1.09;
   Log::Dispatch::File v1.22;
   Log::Dispatch::Output v1.26;
   Log::Dispatch::Screen v1.17;
   Log::Dispatch::Syslog v1.18;
   Mail::Address v2.04;
   Mail::Field v2.04;
   Mail::Field::AddrList v2.04;
Mail::Field::Date v2.04;
   Mail::Field::Generic v2.04;
   Mail::Header v2.04;
   Mail::Internet v2.04;
   Mail::Mailer v2.04;
   Mail::Util v2.04;
   MIME::Base64 v3.08;
   MIME::Body v5.427;
   MIME::Decoder v5.427;
   MIME::Entity v5.427;
   MIME::Field::ContDisp v5.427;
   MIME::Field::ConTraEnc v5.427;
   MIME::Field::ContType v5.427;
   MIME::Field::ParamVal v5.427;
   MIME::Head v5.427;
   MIME::Parser v5.427;
   MIME::QuotedPrint v3.08;
   MIME::Tools v5.427;
   MIME::Words v5.427;
   mod_perl v2.000004;
   mod_perl2 v2.000004;
   ModPerl::Const v2.000004;
   Module::Versions::Report v1.06;
   Net::LDAP v0.39;
   Net::LDAP::ASN v0.08;
   Net::LDAP::Bind v1.03;
   Net::LDAP::Constant v0.07;
   Net::LDAP::Entry v0.24;
   Net::LDAP::Filter v0.15;
   Net::LDAP::Intermediate v0.02;
   Net::LDAP::Message v1.11;
   Net::LDAP::Search v0.13;
   Net::LDAP::Util v0.11;
   overload v1.06;
   Params::Util v1.00;
   Params::Validate v0.91;
   PerlIO v1.04;
   PerlIO::scalar v0.05;
   POSIX v1.13;
   re v0.08;
   Regexp::Common v2.122;
   Regexp::Common::delimited v2.106;
   Regexp::Common::URI v2.110;
   Regexp::Common::URI::fax v2.102;
   Regexp::Common::URI::file v2.102;
   Regexp::Common::URI::ftp v2.103;
   Regexp::Common::URI::gopher v2.102;
   Regexp::Common::URI::http v2.103;
   Regexp::Common::URI::news v2.102;
Regexp::Common::URI::pop v2.102;
   Regexp::Common::URI::prospero v2.102;
   Regexp::Common::URI::RFC1035 v2.102;
   Regexp::Common::URI::RFC1738 v2.106;
   Regexp::Common::URI::RFC1808 v2.102;
   Regexp::Common::URI::RFC2384 v2.104;
   Regexp::Common::URI::RFC2396 v2.102;
   Regexp::Common::URI::RFC2806 v2.102;
   Regexp::Common::URI::tel v2.102;
   Regexp::Common::URI::telnet v2.102;
   Regexp::Common::URI::tv v2.102;
   Regexp::Common::URI::wais v2.102;
   RT v3.8.4;
   RT::Authen::ExternalAuth v0.08;
   RT::Interface::Email v2;
   RT::Interface::Web::Request v0.30;
   Scalar::Util v1.19;
   SelectSaver v1.01;
   Socket v1.80;
   Storable v2.18;
   strict v1.04;
   Symbol v1.06;
   Sys::Syslog v0.22;
   Text::Autoformat v1.666.0;
   Text::Quoted v2.05;
   Text::Reform v1.11;
   Text::Tabs v2007.1117;
   Text::Template v1.45;
   Text::Wrapper v1.02;
   Tie::Hash v1.02;
   Time::HiRes v1.9711;
   Time::JulianDay v2003.1125;
   Time::Local v1.18;
   Time::ParseDate v2006.0814;
   Time::Timezone v2006.0814;
   Time::Zone v2.22;
   Tree::Simple v1.18;
   UNIVERSAL v1.04;
   UNIVERSAL::require v0.13;
   URI v1.38;
   URI::Escape v3.29;
   URI::file v4.20;
   utf8 v1.07;
   vars v1.01;
   version v0.74;
   warnings v1.06;
   warnings::register v1.01;
   XSLoader v0.08;
RT Config
ActiveStatus    new, open, stalled
core config
core config
AmbiguousDayInFuture    0
core config
AmbiguousDayInPast      0
core config
ApprovalRejectionNotes  1
core config
AutoCreateNonExternalUsers      1
site config
AutoLogoff      0
core config
CanonicalizeOnCreate    0
core config
CanonicalizeRedirectURLs        0
core config
CommentAddress  ticket-comment at abc.com
site config
CorrespondAddress       ticket at abc.com
site config
core config
core config
DashboardSubject        %s Dashboard: %s
core config
DatabaseHost    localhost
core config
DatabaseName    rt3
site config
DatabasePassword        Password not printed
site config
core config
DatabaseRTHost  localhost
core config
DatabaseType    mysql
site config
DatabaseUser    root
site config
DateDayBeforeMonth      1
core config
DateTimeFormat  DefaultFormat
core config
DefaultSearchResultFormat       '<B><A 
Status, QueueName, OwnerName, Priority, '__NEWLINE__', '', 
'<small>__Requestors__</small>', '<small>__CreatedRelative__</small>', 
'<small>__LastUpdatedRelative__</small>', '<small>__TimeLeft__</small>'
core config
DefaultSummaryRows      10
core config
DefaultTimeUnitsToHours         0
core config
DevelMode       0
core config
EmailFrequency  Individual messages
core config
EmailInputEncodings     utf-8, iso-8859-1, us-ascii
core config
EmailOutputEncoding     utf-8
core config
EnableReminders         1
core config
ExternalAuthPriority    My_LDAP
site config
ExternalInfoPriority    My_LDAP
site config
ExternalServiceUsesSSLorTLS     0
site config
ExternalSettings        My_LDAP, HASH(0xba2da2f0)
site config
ExtractSubjectTagMatch  Regexp
core config
ExtractSubjectTagNoMatch        Regexp
core config
ForwardFromUser         0
core config
FriendlyFromLineFormat  "%s via RT" <%s>
core config
FriendlyToLineFormat    "%s of ticket.helpdesk.abc.com Ticket #%s":;
core config
GnuPG   Enable, 0
site config
GnuPGOptions    homedir, /opt/rt3/var/data/gpg
core config
HomePageRefreshInterval         120
site config
HomepageComponents      QuickCreate, Quicksearch, MyAdminQueues, 
MySupportQueues, MyReminders, RefreshHomepage, Dashboards
core config
InactiveStatus  resolved, rejected, deleted
core config
LexiconLanguages        *
core config
LinkTransactionsRun1Scrip       0
core config
LogDir  /var/log
site config
core config
LogToFile       debug
site config
LogToFileNamed  rt.log
site config
LogToScreen     error
site config
LogToSyslog     debug
site config
core config
LogoURL         /rt/NoAuth/images/bplogo.gif
site config
LoopsToRTOwner  1
core config
MailCommand     sendmailpipe
core config
core config
core config
MaxAttachmentSize       10000000
core config
MaxInlineBody   12000
core config
MessageBoxHeight        15
core config
MessageBoxIncludeSignature      1
core config
MessageBoxRichText      1
core config
MessageBoxRichTextHeight        200
core config
MessageBoxWidth         72
core config
MessageBoxWrap  HARD
core config
MinimumPasswordLength   5
core config
core config
NotifyActor     0
core config
OldestTransactionsFirst         1
core config
Organization    abc.com
site config
OwnerEmail      root
core config
PlainTextPre    0
core config
Plugins         RT::Authen::ExternalAuth
site config
PreviewScripMessages    0
core config
RTAddressRegexp         ^rt\@example.com$
core config
RecordOutgoingEmail     1
core config
RedistributeAutoGeneratedMessages       privileged
core config
SMTPDebug       0
core config
SearchResultsRefreshInterval    120
site config
SelfServiceRegex        Regexp
core config
SendmailArguments       -oi -t
core config
SendmailBounceArguments         -f "<>"
core config
SendmailPath    /usr/sbin/sendmail
core config
ShowBccHeader   0
core config
ShowTransactionImages   1
core config
ShowUnreadMessageNotifications  1
core config
StandaloneMaxServers    1
core config
StandaloneMaxSpareServers       0
core config
StandaloneMinServers    1
core config
StandaloneMinSpareServers       0
core config
StrictLinkACL   1
core config
Timezone        US/PST
site config
UseFriendlyFromLine     1
core config
UseFriendlyToLine       0
core config
UseTransactionBatch     1
core config
UsernameFormat  EmailAddress
site config
WebBaseURL      http://ticket.helpdesk.abc.com
site config
WebDefaultStylesheet    web2
core config
WebDomain       localhost
core config
WebFlushDbCacheEveryRequest     1
core config
WebImagesURL    /rt/NoAuth/images/
site config
WebNoAuthRegex  Regexp
core config
WebPath         /rt
site config
WebPort         80
core config
WebSecureCookies        0
core config
WebURL  http://ticket.helpdesk.abc.com/rt/
core config
WikiImplicitLinks       0
core config
rtname  ticket.helpdesk.abc.com
site config
RT Variables
RT::BasePath    /opt/rt3
RT::BinPath     /opt/rt3/bin
RT::EtcPath     /opt/rt3/etc
RT::LocalEtcPath        /opt/rt3/local/etc
RT::LocalLexiconPath    /opt/rt3/local/po
RT::LocalLibPath        /opt/rt3/local/lib
RT::LocalPath   /opt/rt3/local
RT::LocalPluginPath     /opt/rt3/local/plugins
RT::MasonComponentRoot  /opt/rt3/share/html
RT::MasonDataDir        /opt/rt3/var/mason_data
RT::MasonLocalComponentRoot     /opt/rt3/local/html
RT::MasonSessionDir     /opt/rt3/var/session_data
RT::SbinPath    /opt/rt3/sbin
RT::VERSION     3.8.4
RT::VarPath     /opt/rt3/var
RT Size
Tickets         18493
Queues  16
Transactions    240100
Groups  74890
Privileged Users        24
Unprivileged Users      813
Perl configuration

Summary of my perl5 (revision 5 version 10 subversion 0) configuration:
     osname=linux, osvers=2.6.24-23-server, 
     uname='linux rothera 2.6.24-23-server #1 smp wed apr 1 22:22:14 utc 
2009 i686 gnulinux '
     config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN 
-Dcccdlflags=-fPIC -Darchname=i486-linux-gnu -Dprefix=/usr 
-Dprivlib=/usr/share/perl/5.10 -Darchlib=/usr/lib/perl/5.10 
-Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 
-Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local 
-Dsitearch=/usr/local/lib/perl/5.10.0 -Dman1dir=/usr/share/man/man1 
-Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 
-Dsiteman3dir=/usr/local/man/man3 -Dman1ext=1 -Dman3ext=3perl 
-Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Ud_ualarm -Uusesfio -Uusenm 
-DDEBUGGING=-g -Doptimize=-O2 -Duseshrplib -Dlibperl=libperl.so.5.10.0 
-Dd_dosuid -des'
     hint=recommended, useposix=true, d_sigaction=define
     useithreads=define, usemultiplicity=define
     useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
     use64bitint=undef, use64bitall=undef, uselongdouble=undef
     usemymalloc=n, bincompat5005=undef
     cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN 
-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE 
     optimize='-O2 -g',
     cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing 
-pipe -I/usr/local/include'
     ccversion='', gccversion='4.3.3', gccosandvers=''
     intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
     d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
     ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', 
     alignbytes=4, prototype=define
   Linker and Libraries:
     ld='cc', ldflags =' -L/usr/local/lib'
     libpth=/usr/local/lib /lib /usr/lib /usr/lib64
     libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt
     perllibs=-ldl -lm -lpthread -lc -lcrypt
     libc=/lib/libc-2.9.so, so=so, useshrplib=true, 
   Dynamic Linking:
     dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
     cccdlflags='-fPIC', lddlflags='-shared -O2 -g -L/usr/local/lib'

Perl Include Paths (@INC)


Time to display: 0.657868




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