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Posted to embperl@perl.apache.org by ma...@metm.org on 2004/04/14 20:06:24 UTC
Getting more info from segfault
from the debian unstable distribution, I am using the
apache-perl ( version 1.3.29.0.2-4 )
libapache-mod-perl ( version 1.29.0.2-4 )
libembperl-perl ( version 2.0b10-1 )
packages
mod-perl works on this server, some old modules I wrote work well out of
their directories. However when calling for a page from a directory for
which I have enableed Embperl::Object the child segfaults:
[Wed Apr 14 13:42:11 2004] [notice] child pid 7680 exit signal Segmentation fault (11)
This is quite consistent.
simple mod_perl works:
<Location /test>
SetHandler perl-script
PerlHandler MetM::LookatRequest
</Location>
Embperl doesn't :
<Location /hello>
PerlSetEnv EMBPERL_OBJECT_BASE _base.epl
PerlSetEnv EMBPERL_FILESMATCH "\.html"
PerlHandler Embperl::Object
SetHandler perl-script
Options ExecCGI
</Location>
I want to see /hello/index.html processed by Embperl Object with the
_base.epl template. Processing this page by hand through a small perl
script which calls : Embperl::Object::Execute(); works.
I have the apache logging set to debug, but I see no information in the
logs except for the Segfault everytime there is a request for the /hello
directory.
I am wondering how do I debug this further.
How do I get more info? Or is there something obvious I am missing?
Thanks,
--
Marco
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Re: Getting more info from segfault
Posted by Marco Scoffier <ma...@metm.org>.
On Thu, Apr 15, 2004 at 08:19:29AM +0200, Gerald Richter wrote:
> Do you load Embperl on server startup?
>
> Please try to add a
>
> PerlModule Embperl
>
> to your httpd.conf.
>
Yes thank you.
I could have sworn I had tried every combination of PerlHandler,
PerlRequire and PerlModule. Now calmly it works :)
My site will be up soon...
thank you,
--
Marco
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Re: Getting more info from segfault
Posted by Gerald Richter <ri...@ecos.de>.
Marco Scoffier wrote:
> On Wed, Apr 14, 2004 at 07:19:10PM -0400, Marco Scoffier wrote:
>> Ok I removed all the debian packages and built Apache, mod_perl and
>> Embperl from source.
>>
>> apache_1.3.29.tar.gz
>> Embperl-2.0b11.tar.gz
>> mod_perl-1.0-current.tar.gz
>>
> It has come to my attention that I am mixing Embperl2 with Apache1.3
> which doesn't work.
Embperl 2 works well with Apache 1.3 (and 2.0).
>
> ERR: 56: : Unknown Provider epcompile
>
Do you load Embperl on server startup?
Please try to add a
PerlModule Embperl
to your httpd.conf.
> <Location /hello>
> PerlHandler Embperl::Object
> PerlSetEnv EMBPERL_OBJECT_BASE _base.epl
> PerlSetEnv EMBPERL_URIMATCH "\.html"
> SetHandler perl-script
> Options ExecCGI
> </Location>
Embperl 2 does not require the PerlSetEnv anymore. If you want to use them,
you must add a
Embperl_UseEnv on
to your httpd.conf
Gerald
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E-Mail: richter@ecos.de Voice: +49 6133 939-122
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Re: Getting more info from segfault
Posted by Marco Scoffier <ma...@metm.org>.
On Thu, Apr 15, 2004 at 12:35:47AM -0400, Marco Scoffier wrote:
> It has come to my attention that I am mixing Embperl2 with Apache1.3
> which doesn't work. I'll try with apache2.0 tommorrow. Sorry about all
> the mails :) I guess you have to put the problem out there to see the
> obvious mistake sometimes...
>
Come to think of it, I wonder why all the tests worked and the example
website ?? Nothing gave me the impression I was doing something stupid
until I tried to access the page from the server.
--
Marco
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Re: Getting more info from segfault
Posted by Marco Scoffier <ma...@metm.org>.
On Wed, Apr 14, 2004 at 07:19:10PM -0400, Marco Scoffier wrote:
> Ok I removed all the debian packages and built Apache, mod_perl and
> Embperl from source.
>
> apache_1.3.29.tar.gz
> Embperl-2.0b11.tar.gz
> mod_perl-1.0-current.tar.gz
>
It has come to my attention that I am mixing Embperl2 with Apache1.3
which doesn't work. I'll try with apache2.0 tommorrow. Sorry about all
the mails :) I guess you have to put the problem out there to see the
obvious mistake sometimes...
Thanks to the responders,
--
Marco
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Re: Getting more info from segfault
Posted by Marco Scoffier <ma...@metm.org>.
Ok I removed all the debian packages and built Apache, mod_perl and
Embperl from source.
apache_1.3.29.tar.gz
Embperl-2.0b11.tar.gz
mod_perl-1.0-current.tar.gz
I ran 'make test' and 'make start' in the Embperl directory, and the
server seems to work, at http://localhost:8531/eg/web. How could I use
this example to build the begining of my site?
When trying to run the apache server newly installed in
/usr/local/apache, I once again get the dreaded:
ERR: 56: : Unknown Provider epcompile
(I triple checked that it was the newly compiled one,
and that I had purged the debian one).
Does anyone have any idea what is going on? Is this a perl problem? I
got rid of every possible weird old module that might be in the path,
and strace httpd -X shows that the correct modules are being loaded.
The test I am running which provokes the crashes or errors is as simple
as I could make it:
$cat hello/_base.epl
<html>
<head></head>
<body>
<h1>[- Execute ('*') -]</h1>
</body>
</html>
$cat hello/index.html
hello
the lines in httpd.conf look like:
<Location /hello>
PerlHandler Embperl::Object
PerlSetEnv EMBPERL_OBJECT_BASE _base.epl
PerlSetEnv EMBPERL_URIMATCH "\.html"
SetHandler perl-script
Options ExecCGI
</Location>
--
Marco
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Re: Getting more info from segfault
Posted by Marco Scoffier <ma...@metm.org>.
On Wed, Apr 14, 2004 at 03:44:03PM -0400, Marco Scoffier wrote:
> I got a better error:
>
> ERR: 56: : Unknown Provider epcompile
>
Now with
strace apache-perl -X
I get these bits:
open("/usr/lib/perl5/Embperl/Object.pm", O_RDONLY|O_LARGEFILE) = 4
ioctl(4, TCGETS, 0xbffff1dc) = -1 ENOTTY (Inappropriate ioctl
for device)
_llseek(4, 0, [0], SEEK_CUR) = 0
read(4, "\n###############################"..., 4096) = 4096
[...]
read(4, "\n my $fallback = 0 ;\n \t\n "..., 4096) = 4096
read(4, ":Object Application -> init had "..., 4096) = 4096
_llseek(4, 10733, [10733], SEEK_SET) = 0
_llseek(4, 0, [10733], SEEK_CUR) = 0
close(4) = 0
getpid() = 15679
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
It is definitely crashing in Embperl::Object. I am definitely going to
have to compile this myself I guess.
--
Marco
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Re: Getting more info from segfault
Posted by Marco Scoffier <ma...@metm.org>.
I got a better error:
ERR: 56: : Unknown Provider epcompile
Thanks,
--
Marco
On Wed, Apr 14, 2004 at 02:06:24PM -0400, marco@metm.org wrote:
> [Wed Apr 14 13:42:11 2004] [notice] child pid 7680 exit signal Segmentation fault (11)
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