Re: make test hangs

Wed, 05 May 2004 06:36:53 -0700

-------------8<---------- Start Bug Report ------------8<----------
1. Problem Description:
 
  Following your suggestion I added the signal handler for USR2 and found that any test containing the following line hangs:
 
my $mtime = (stat __FILE__)[9];
 
This same snippet of code works fine in regular perl programs.  I put in a print statement to verify that __FILE__ has the value you would expect (which is does namely the pm for the currently running test).  Any more thoughts?
 
2. Used Components and their Configuration:
 
*** mod_perl version 1.9913
 
*** using lib/Apache/BuildConfig.pm
*** Makefile.PL options:
  MP_APXS        => /usr/opt/httpd-2.0.49/bin/apxs
  MP_COMPAT_1X   => 1
  MP_DEBUG       => 1
  MP_GENERATE_XS => 1
  MP_LIBNAME     => mod_perl
  MP_TRACE       => 1
  MP_USE_DSO     => 1
  MP_USE_STATIC  => 1
 

*** /usr/opt/httpd-2.0.49/bin/httpd -V
Server version: Apache/2.0.49
Server built:   Mar 21 2004 11:04:25
Server's Module Magic Number: 20020903:7
Architecture:   32-bit
Server compiled with....
 -D APACHE_MPM_DIR="server/mpm/prefork"
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_USE_SYSVSEM_SERIALIZE
 -D APR_USE_PTHREAD_SERIALIZE
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D HTTPD_ROOT="/usr/opt/httpd-2.0.49"
 -D SUEXEC_BIN="/usr/opt/httpd-2.0.49/bin/suexec"
 -D DEFAULT_PIDLOG="logs/httpd.pid"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_LOCKFILE="logs/accept.lock"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="conf/mime.types"
 -D SERVER_CONFIG_FILE="conf/httpd.conf"
 

*** /usr/opt/perl-5.6.2/bin/perl -V
Summary of my perl5 (revision 5.0 version 6 subversion 2) configuration:
  Platform:
    osname=hpux, osvers=11.00, archname=PA-RISC2.0
    uname='hp-ux cars-l b.11.00 u 9000800 134921527 unlimited-user license '
    config_args='-Accflags=+Z -Accflags=-DPERL_POLLUTE -Dprefix=/usr/opt/perl-5.6.2 -Doptimize=-g -Dloclibpth=/usr/opt/perl-5.6.2/lib /lib /usr/lib /usr/ccs/lib /usr/opt/libiconv-1.9.1/lib /usr/opt/readline-4.3/lib /usr/opt/openssl-0.9.7d/lib /usr/opt/ncurses-5.3/lib /usr/opt/gettext-0.12.1/lib /usr/opt/jpeg.v6b/lib /opt/informix/lib /usr/opt/zlib-1.1.4/lib /usr/opt/db-4.1.25/lib /usr/opt/expat-1.95.6/lib /usr/opt/gzip-1.2.4/lib /usr/opt/freetds-0.61/lib /usr/opt/libpng-1.2.5/lib /usr/opt/bzip2-1.0.2/lib /usr/opt/gdbm-1.8.3/lib /usr/opt/freetype-2.1.5/lib /usr/opt/gd-2.0.15/lib /usr/opt/tiff-v3.5.7/lib /opt/default/lib -Dlocincpth=/usr/opt/perl-5.6.2/include /include /usr/include /usr/ccs/include /usr/opt/libiconv-1.9.1/include /usr/opt/readline-4.3/include /usr/opt/openssl-0.9.7d/include /usr/opt/ncurses-5.3/include /usr/opt/gettext-0.12.1/include /usr/opt/jpeg.v6b/include /opt/informix/incl /usr/opt/zlib-1.1.4/include /usr/opt/db-4.1.25/include /usr/opt/expat-1.95.6/include /usr/opt/gzip-1.2.4/include /usr/opt/freetds-0.61/include /usr/opt/libpng-1.2.5/include /usr/opt/bzip2-1.0.2/include /usr/opt/gdbm-1.8.3/include /usr/opt/freetype-2.1.5/include /usr/opt/gd-2.0.15/include /usr/opt/tiff-v3.5.7/include /opt/default/include -Dcc=/opt/ansic/bin/cc -Dlibs=-lnsl -lnm -lndbm -lgdbm -ldb -lmalloc -ldld -lm -lcrypt -lsec -lpthread -lc -lcl -Ubincompat5005 -d -e'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
  Compiler:
    cc='/opt/ansic/bin/cc', ccflags =' -Ae -D_HPUX_SOURCE -Wl,+vnocompatwarnings +Z -DPERL_POLLUTE -DDEBUGGING -I/usr/opt/perl-5.6.2/include -I/usr/opt/libiconv-1.9.1/include -I/usr/opt/readline-4.3/include -I/usr/opt/openssl-0.9.7d/include -I/usr/opt/ncurses-5.3/include -I/usr/opt/gettext-0.12.1/include -I/usr/opt/jpeg.v6b/include -I/opt/informix/incl -I/usr/opt/zlib-1.1.4/include -I/usr/opt/db-4.1.25/include -I/usr/opt/expat-1.95.6/include -I/usr/opt/freetds-0.61/include -I/usr/opt/libpng-1.2.5/include -I/usr/opt/bzip2-1.0.2/include -I/usr/opt/gdbm-1.8.3/include -I/usr/opt/freetype-2.1.5/include -I/usr/opt/gd-2.0.15/include -I/usr/opt/tiff-v3.5.7/include -I/opt/default/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 ',
    optimize='-g',
    cppflags='-Ae -D_HPUX_SOURCE -Wl,+vnocompatwarnings +Z -DPERL_POLLUTE -DDEBUGGING -I/usr/opt/perl-5.6.2/include -I/usr/opt/libiconv-1.9.1/include -I/usr/opt/readline-4.3/include -I/usr/opt/openssl-0.9.7d/include -I/usr/opt/ncurses-5.3/include -I/usr/opt/gettext-0.12.1/include -I/usr/opt/jpeg.v6b/include -I/opt/informix/incl -I/usr/opt/zlib-1.1.4/include -I/usr/opt/db-4.1.25/include -I/usr/opt/expat-1.95.6/include -I/usr/opt/freetds-0.61/include -I/usr/opt/libpng-1.2.5/include -I/usr/opt/bzip2-1.0.2/include -I/usr/opt/gdbm-1.8.3/include -I/usr/opt/freetype-2.1.5/include -I/usr/opt/gd-2.0.15/include -I/usr/opt/tiff-v3.5.7/include -I/opt/default/include'
    ccversion='A.11.01.25171.GP', gccversion='', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=4321
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='/usr/bin/ld', ldflags =' -L/usr/opt/perl-5.6.2/lib -L/lib -L/usr/lib -L/usr/ccs/lib -L/usr/opt/libiconv-1.9.1/lib -L/usr/opt/readline-4.3/lib -L/usr/opt/openssl-0.9.7d/lib -L/usr/opt/ncurses-5.3/lib -L/usr/opt/gettext-0.12.1/lib -L/usr/opt/jpeg.v6b/lib -L/opt/informix/lib -L/usr/opt/zlib-1.1.4/lib -L/usr/opt/db-4.1.25/lib -L/usr/opt/expat-1.95.6/lib -L/usr/opt/gzip-1.2.4/lib -L/usr/opt/freetds-0.61/lib -L/usr/opt/libpng-1.2.5/lib -L/usr/opt/bzip2-1.0.2/lib -L/usr/opt/gdbm-1.8.3/lib -L/usr/opt/freetype-2.1.5/lib -L/usr/opt/gd-2.0.15/lib -L/usr/opt/tiff-v3.5.7/lib -L/opt/default/lib'
    libpth=/usr/opt/perl-5.6.2/lib /lib /usr/lib /usr/ccs/lib /usr/opt/libiconv-1.9.1/lib /usr/opt/readline-4.3/lib /usr/opt/openssl-0.9.7d/lib /usr/opt/ncurses-5.3/lib /usr/opt/gettext-0.12.1/lib /usr/opt/jpeg.v6b/lib /opt/informix/lib /usr/opt/zlib-1.1.4/lib /usr/opt/db-4.1.25/lib /usr/opt/expat-1.95.6/lib /usr/opt/gzip-1.2.4/lib /usr/opt/freetds-0.61/lib /usr/opt/libpng-1.2.5/lib /usr/opt/bzip2-1.0.2/lib /usr/opt/gdbm-1.8.3/lib /usr/opt/freetype-2.1.5/lib /usr/opt/gd-2.0.15/lib /usr/opt/tiff-v3.5.7/lib /opt/default/lib
    libs=-lnsl -lnm -lndbm -lgdbm -ldb -lmalloc -ldld -lm -lcrypt -lsec -lpthread -lc -lcl
    perllibs=-lnsl -lnm -lmalloc -ldld -lm -lcrypt -lsec -lpthread -lc -lcl
    libc=/lib/libc.sl, so=sl, useshrplib=false, libperl=libperl.a
  Dynamic Linking:
    dlsrc=dl_hpux.xs, dlext=sl, d_dlsymun=undef, ccdlflags='-Wl,-E -Wl,-B,deferred '
    cccdlflags='+Z', lddlflags='-b +vnocompatwarnings -L/usr/opt/perl-5.6.2/lib -L/lib -L/usr/lib -L/usr/ccs/lib -L/usr/opt/libiconv-1.9.1/lib -L/usr/opt/readline-4.3/lib -L/usr/opt/openssl-0.9.7d/lib -L/usr/opt/ncurses-5.3/lib -L/usr/opt/gettext-0.12.1/lib -L/usr/opt/jpeg.v6b/lib -L/opt/informix/lib -L/usr/opt/zlib-1.1.4/lib -L/usr/opt/db-4.1.25/lib -L/usr/opt/expat-1.95.6/lib -L/usr/opt/gzip-1.2.4/lib -L/usr/opt/freetds-0.61/lib -L/usr/opt/libpng-1.2.5/lib -L/usr/opt/bzip2-1.0.2/lib -L/usr/opt/gdbm-1.8.3/lib -L/usr/opt/freetype-2.1.5/lib -L/usr/opt/gd-2.0.15/lib -L/usr/opt/tiff-v3.5.7/lib -L/opt/default/lib'
 

Characteristics of this binary (from libperl):
  Compile-time options: DEBUGGING USE_LARGE_FILES
  Built under hpux
  Compiled at Apr 30 2004 15:59:24
  %ENV:
    PERL_LWP_USE_HTTP_10="1"
  @INC:
    /usr/opt/perl-5.6.2/lib/5.6.2/PA-RISC2.0
    /usr/opt/perl-5.6.2/lib/5.6.2
    /usr/opt/perl-5.6.2/lib/site_perl/5.6.2/PA-RISC2.0
    /usr/opt/perl-5.6.2/lib/site_perl/5.6.2
    /usr/opt/perl-5.6.2/lib/site_perl
    .
 
*** Packages of interest status:
 
Apache::Request: -
CGI            : 3.05
LWP            : 5.79
mod_perl       : -
 

3. This is the core dump trace: (if you get a core dump):
 
no core dump created
 
This report was generated by t/REPORT on Tue May  4 21:17:52 2004 GMT.
 
-------------8<---------- End Bug Report --------------8<----------
 
---
Will Fulmer
Database Administrator
Northampton Community College
Bethlehem, PA

>>> Stas Bekman <[EMAIL PROTECTED]> 5/4/2004 1:46:42 PM >>>
William Fulmer wrote:
> Hi,
> 
> I'm trying to get mod_perl-1.99_13 to compile with apache 2.0.49 and
> perl 5.6.2

That's insufficient, William. Please see: http://perl.apache.org/bugs/

[...]
> It hangs on api/request_rec.

Try to figure out which sub-test is it hanging on. Try this trick:
http://perl.apache.org/docs/1.0/guide/debug.html#Using_the_Perl_Trace

> tusc of the httpd process gives the folloing over and over again:
> 
> select(0, NULL, NULL, NULL, 0x7f7f0b10)
> ................................. [entry]
> select(0, NULL, NULL, NULL, 0x7f7f0b10)
> ................................. = 0
> waitpid(4294967295, WIFEXITED(0), WNOHANG|WUNTRACED)
> .................... [entry]
> waitpid(-1, WIFEXITED(0), WNOHANG|WUNTRACED)
> ............................ = 0

which httpd process are you tracing? There is more than one. Looks like you
are tracing the parent process.

__________________________________________________________________
Stas Bekman            JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/     mod_perl Guide ---> http://perl.apache.org
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