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Posted to dev@perl.apache.org by Qasem Sweilem <qa...@alqudsnet.com> on 2006/07/02 16:39:09 UTC
Threads under Apache2 and mod-perl2 problem
Hi,
I have a problem running threads under mod perl. I always get a "zero sized
reply" in the browser.
it works fine under normal cgi and in the shell.
Note: I have perl 5.8.6, and Apache2.0 with mod-perl2
when typing: perl -V:useithreads -V:usemultiplicity
I get: useithreads='define';
usemultiplicity='define';
Here is the simple test script im trying to run:
--------------------
use threads;
$thr = threads->new(\&sub1);
@ReturnData = $thr->join;
print "Thread returned @ReturnData \n";
sub sub1 {
return "Fifty-six";
}
---------------------
Is there anything required which I miss?
thanks in advance
Qasem
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Re: Threads under Apache2 and mod-perl2 problem
Posted by "Philip M. Gollucci" <pg...@p6m7g8.com>.
Qasem Sweilem wrote:
> Hi,
>
> I have a problem running threads under mod perl. I always get a "zero sized
> reply" in the browser.
I haven't the foggiest what the problem is, but its failing because your server
is seg-faulting. Check your error_log.
Alias /perl-reg /usr/local/software/perl-scripts
<Location /perl-reg>
SetHandler perl-script
PerlResponseHandler ModPerl::Registry
Options +ExecCGI
</Location>
LoadModule cgid_module modules/mod_cgid.so
ScriptAlias /cgi-bin /usr/local/software/cgi-bin
Scriptsock logs/cgisock
./test.pl
Content-Type: text/plain
Thread returned Fifty-six
GET http://localhost:8000/cgi-bin/test.pl
Thread returned Fifty-six
GET http://localhost:8000/perl-reg/test.pl
500 Server closed connection without sending any data back
tail error_log
[Sun Jul 02 16:02:16 2006] [notice] child pid 20687 exit signal Segmentation fault (11), possible coredump in
/usr/local/software/frebsd-6.1-stable/3.4.4/httpd/2.2.2/worker
sudo killall -9 httpd
./httpd -X
gdb httpd 21887
[Switching to LWP 100136]
0x2818a87b in pthread_testcancel () from /usr/lib/libpthread.so.2
(gdb) c
Continuing.
[in another window GET http://localhost:8000/perl-reg/test.pl]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x8895800 (LWP 100137)]
0x2839c9f3 in Perl_gv_fetchpv (my_perl=0x88db000, nambeg=0xbf7fc460 "Apache2::RequestRec::", add=1, sv_type=11) at gv.c:721
721 if (!stash || !SvREFCNT(stash)) /* symbol table under destruction */
(gdb) bt
#0 0x2839c9f3 in Perl_gv_fetchpv (my_perl=0x88db000, nambeg=0xbf7fc460 "Apache2::RequestRec::", add=1, sv_type=11) at
gv.c:721
#1 0x2839c7da in Perl_gv_stashpvn (my_perl=0x88db000, name=0x28368c34 "Apache2::RequestRec", namelen=21, create=1) at
gv.c:671
#2 0x2839c730 in Perl_gv_stashpv (my_perl=0x88db000, name=0x28368c34 "Apache2::RequestRec", create=1) at gv.c:640
#3 0x28427953 in Perl_newSVrv (my_perl=0x88db000, rv=0x895c024, classname=0x28368c34 "Apache2::RequestRec") at sv.c:7858
#4 0x284279e7 in Perl_sv_setref_pv (my_perl=0x88db000, rv=0x895c024, classname=0x28368c34 "Apache2::RequestRec",
pv=0x88cb050) at sv.c:7890
#5 0x2834ec79 in PerlIOApache_getarg (my_perl=0x88db000, f=0x833bc04, param=0xbf7fc950, flags=1) at modperl_io_apache.c:88
#6 0x2849d869 in PerlIOBase_dup (my_perl=0x88db000, f=0x88d9104, o=0x833bc04, param=0xbf7fc950, flags=1) at perlio.c:2212
#7 0x28499e52 in PerlIO_fdupopen (my_perl=0x88db000, f=0x833bc04, param=0xbf7fc950, flags=1) at perlio.c:541
#8 0x2842ba7f in Perl_fp_dup (my_perl=0x88db000, fp=0x833bc04, type=0 '\0', param=0xbf7fc950) at sv.c:9682
#9 0x2849a3a1 in PerlIO_clone (my_perl=0x88db000, proto=0x833f000, param=0xbf7fc950) at perlio.c:649
#10 0x28430bac in perl_clone (proto_perl=0x833f000, flags=2) at sv.c:11071
#10 0x28430bac in perl_clone (proto_perl=0x833f000, flags=2) at sv.c:11071
#18 0x280ab85d in rlock_release () from /libexec/ld-elf.so.1
#44 0x284d35a8 in __JCR_LIST__ () from /usr/local/software/frebsd-6.1-stable/3.4.4/perl/5.8.8-ithread/lib/CORE/libperl.so
#45 0x0833f000 in ?? ()
#46 0xbf7fcaf8 in ?? ()
#47 0x2841496d in Perl_pp_entersub (my_perl=0x833f000) at pp_hot.c:2877
Previous frame identical to this frame (corrupt stack?)
that was perl 5.8.8-ithread, httpd 2.2.2-worker, mod_perl2.0.2
yuck.....
--
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Philip M. Gollucci (pgollucci@p6m7g8.com) 323.219.4708
Consultant / http://p6m7g8.net/Resume/resume.shtml
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"In all that I've done wrong I know I must have done something right to
deserve a hug every morning and butterfly kisses at night."
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