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Posted to modperl@perl.apache.org by Guy Albertelli II <gu...@albertelli.com> on 2006/08/16 19:13:34 UTC

'error-notes' has no value on errordocument redirect (patch included)

-------------8<---------- Start Bug Report ------------8<----------
1. Problem Description:

$r->prev->notes->{'error-notes'} exists but is blank on an error document
redirect.

This patch appears to fix it:

--- modperl_callback.c.orig	2006-08-16 13:06:25.000000000 -0400
+++ modperl_callback.c	2006-08-16 12:37:36.000000000 -0400
@@ -130,7 +130,7 @@
 
     if (status == HTTP_INTERNAL_SERVER_ERROR) {
         if (r && r->notes) {
-            apr_table_mergen(r->notes, "error-notes", SvPV_nolen(ERRSV));
+            apr_table_merge(r->notes, "error-notes", SvPV_nolen(ERRSV));
         }
     }


------------Testing envrionment

Configured handlers:

    <Location /bomb>
      SetHandler    perl-script
      PerlHandler   bomb
      ErrorDocument 500 /errorhandler
    </Location>
    <Location /errorhandler>
      SetHandler  perl-script
      PerlHandler errorhandler
    </Location>
    PerlRequire      conf/startup.pl

---startup.pl---
#!/usr/bin/perl
use lib '/home/httpd/lib/perl/';
use bomb;
use errorhandler;
1;
---startup.pl---

----bomb.pm----
package bomb;

sub handler {
    &bomb();
}
1;
----bomb.pm----

----errorhandler.pm----
package errorhandler;

use Apache2::RequestRec ();
use Apache2::RequestIO ();
use Apache2::Const -compile => qw(OK);
use APR::Table;

sub handler {
    my $r = shift;
    $r->content_type('text/html');
    my $table = $r->prev->notes;
    foreach my $key (keys %{$table}) {
        $r->print("<p>$key = $table->{$key}</p>");
    }
    return Apache2::Const::OK;
}
1;
----errorhandler.pm----

2. Used Components and their Configuration:

*** mod_perl version 2.000002

*** using /usr/lib/perl5/vendor_perl/5.8.6/i386-linux-thread-multi/Apache2/BuildConfig.pm

*** Makefile.PL options:
  MP_APR_LIB     => aprext
  MP_APXS        => /usr/sbin/apxs
  MP_COMPAT_1X   => 1
  MP_GENERATE_XS => 1
  MP_LIBNAME     => mod_perl
  MP_USE_DSO     => 1


*** The httpd binary was not found


*** (apr|apu)-config linking info

 -L/usr/lib -laprutil-0 -lldap -llber -ldb-4.3 -lexpat
 -L/usr/lib -lapr-0 -lrt -lm -lcrypt  -lpthread -ldl



*** /usr/bin/perl -V
Summary of my perl5 (revision 5 version 8 subversion 6) configuration:
  Platform:
    osname=linux, osvers=2.6.9-34.elsmp, archname=i386-linux-thread-multi
    uname='linux hs20-bc1-4.build.redhat.com 2.6.9-34.elsmp #1 smp fri feb 24 16:56:28 est 2006 i686 i686 i386 gnulinux '
    config_args='-des -Doptimize=-O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -m32 -march=i386 -mtune=pentium4 -fasynchronous-unwind-tables -Dversion=5.8.6 -Dmyhostname=localhost -Dperladmin=root@localhost -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux -Dvendorprefix=/usr -Dsiteprefix=/usr -Duseshrplib -Dusethreads -Duseithreads -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio -Dinstallusrbinperl=n -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less -isr -Dd_gethostent_r_proto -Ud_endhostent_r_proto -Ud_endprotoent_r_proto -Ud_endservent_r_proto -Ud_sethostent_r_proto -Ud_setprotoent_r_proto -Ud_setservent_r_proto -Dinc_version_list=5.8.5 5.8.4 5.8.3'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=define use5005threads=undef useithreads=define usemultiplicity=define
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
    optimize='-O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -m32 -march=i386 -mtune=pentium4 -fasynchronous-unwind-tables',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include -I/usr/include/gdbm'
    ccversion='', gccversion='4.0.2 20051125 (Red Hat 4.0.2-8)', 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', lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='gcc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lresolv -lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
    perllibs=-lresolv -lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=/lib/libc-2.3.5.so, so=so, useshrplib=true, libperl=libperl.so
    gnulibc_version='2.3.5'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E -Wl,-rpath,/usr/lib/perl5/5.8.6/i386-linux-thread-multi/CORE'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'


Characteristics of this binary (from libperl): 
  Compile-time options: DEBUGGING MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_CONTEXT
  Built under linux
  Compiled at Mar 13 2006 16:40:06
  %ENV:
    PERL_LWP_USE_HTTP_10="1"
  @INC:
    /usr/lib/perl5/site_perl/5.8.6/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.4/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.3/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.6
    /usr/lib/perl5/site_perl/5.8.5
    /usr/lib/perl5/site_perl/5.8.4
    /usr/lib/perl5/site_perl/5.8.3
    /usr/lib/perl5/site_perl
    /usr/lib/perl5/vendor_perl/5.8.6/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.4/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.3/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.6
    /usr/lib/perl5/vendor_perl/5.8.5
    /usr/lib/perl5/vendor_perl/5.8.4
    /usr/lib/perl5/vendor_perl/5.8.3
    /usr/lib/perl5/vendor_perl
    /usr/lib/perl5/5.8.6/i386-linux-thread-multi
    /usr/lib/perl5/5.8.6
    .

*** Packages of interest status:

Apache2            : -
Apache2::Request   : -
CGI                : 3.10
ExtUtils::MakeMaker: 6.17
LWP                : 5.803
mod_perl           : -
mod_perl2          : 2.000002


3. This is the core dump trace: (if you get a core dump):

  [CORE TRACE COMES HERE]

This report was generated by /usr/bin/mp2bug on Wed Aug 16 16:59:33 2006 GMT.

-------------8<---------- End Bug Report --------------8<----------

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-- 
guy@albertelli.com   0-7-1-6-27,137