Apache::Symbol-calling none-can('undef_functions')
Hi
The following
perl -MDevel::Symdump -e '$t =
Devel::Symdump-new(main); print $t-packages, \n;'
in perl 5.6.1 returns none as one the packages !
Apache::Symbol (mod_perl-1.26) seems to call a
'can('undef_function..' on this values as a result,
a fatal error is thrown ! I have done a 'next if
/\none\/' in Apache::Symbol to work around this.
There is no problem in perl-5.005. No one else faced
similar problem ? BTW, all this is in Solaris 2.6
Sreeji
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Re: Apache::Symbol-calling none-can('undef_functions')
Sreeji K Das wrote:
Hi
The following
perl -MDevel::Symdump -e '$t =
Devel::Symdump-new(main); print $t-packages, \n;'
in perl 5.6.1 returns none as one the packages !
Apache::Symbol (mod_perl-1.26) seems to call a
'can('undef_function..' on this values as a result,
a fatal error is thrown ! I have done a 'next if
/\none\/' in Apache::Symbol to work around this.
There is no problem in perl-5.005. No one else faced
similar problem ? BTW, all this is in Solaris 2.6
I guess you're using Apache::StatINC? from the recesses of my memory,
I think that only Apache::StatINC uses Apache::Symbol, and in perl
5.6.0 the need for Apache::Symbol was removed, since subroutine
redefined warnings were made not-mandatory.
at any rate, if you're using Apache::StatINC you can probably just
move to Apache::Reload to avoid the problem. other than that, I'm not
sure what to tell you - I can't recall anyone else reporting this
problem...
--Geoff
Re: Apache::Symbol-calling none-can('undef_functions')
On Thu, Feb 07, 2002 at 08:09:57AM -0500, Geoffrey Young wrote:
Sreeji K Das wrote:
Hi
The following
perl -MDevel::Symdump -e '$t =
Devel::Symdump-new(main); print $t-packages, \n;'
in perl 5.6.1 returns none as one the packages !
Apache::Symbol (mod_perl-1.26) seems to call a
'can('undef_function..' on this values as a result,
a fatal error is thrown ! I have done a 'next if
/\none\/' in Apache::Symbol to work around this.
There is no problem in perl-5.005. No one else faced
similar problem ? BTW, all this is in Solaris 2.6
I guess you're using Apache::StatINC? from the recesses of my memory,
I think that only Apache::StatINC uses Apache::Symbol, and in perl
5.6.0 the need for Apache::Symbol was removed, since subroutine
redefined warnings were made not-mandatory.
at any rate, if you're using Apache::StatINC you can probably just
move to Apache::Reload to avoid the problem. other than that, I'm not
sure what to tell you - I can't recall anyone else reporting this
problem...
I did find yesterday that Apache::Status + Devel::Symdump can cause
Apache to segfault on Solaris 2.7 with Perl 5.6.1, mod_perl 1.26,
apache 1.3.22. Not sure why yet. I'm just avoiding the combination
for now :/ (Basically, let this serve as a warning so people aren't
surprised if they see it.)
I also get the following at times:
Bizarre copy of ARRAY in aassign at
/usr/local/lib/perl5/site_perl/5.6.1/Devel/Symdump.pm line 53.
Probably should post to p5p or something if I can gather more information.
--jim
Re: Apache::Symbol-calling none-can('undef_functions')
Sreeji K Das wrote: Hi Well, it's only a small part of my big problem :-( I'm trying to get PerlFreshRestart working. I had been banging my head against it for almost 5 days I was thinking about preparing a small test case posting. Well I want apache to load all my perl stuff on restart (USR1) - so I enabled PerlFreshRestart (I don't want Apache to stat modules on every request). Since I was getting 'subroutine redefined' warnings, I had put 'PerlRestartHandler Apache::Symbol' - you got the reason for the problem ? I'm having hell lot of problems with PerlFreshRestart. you will :) see http://perl.apache.org/guide/troubleshooting.html#Evil_things_might_happen_when_us and the rest of the guide for more details. just FYI, but Apache::Reload is much better at reloading scripts, and has features that can do pretty much what you want. HTH --Geoff
PerlFreshRestart (Was: Re: Apache::Symbol-calling none-can('undef_functions'))
Hi
True, I had already read that doc also the
'Namespace' collision docs. However, there's no name
space collission in my scripts since:
1) The entire code with same config. works with old
mod_perl+perl+apache combo.
2) The errors that I get are like 'Undefined
subroutine File::Basename::basename called at ...'
Just before this if I check
File::Basename-can('basename') I get true if check
%INC, File/Basename.pm exists there. I also did an
explict symbol table check (using glob) found that
the function is there ! But funnily perl says it's
undefined subroutine ! The actual module method
names change randomly, even if I run with -X !
As for Apache::Reload, the problem is it's going to
stat all the files, which I don't want. Alternatively,
I'll have to put use Apcahe::Reload, which again is a
problem, since I have to modify many files they all
would be unnecessarily stat'ed. I just want Apache to
load all the modules, when I give a USR1 - I'm really
stuck at this !
(Another option I read somewhere is to compile
mod_perl as a DSO, in which case for every restart the
entire perl interp. is torn down reloaded - may be
I'll look into that)
Thanx
Sreeji
--- Geoffrey Young [EMAIL PROTECTED] wrote:
Sreeji K Das wrote:
Hi
Well, it's only a small part of my big problem :-(
I'm trying to get PerlFreshRestart working. I had
been
banging my head against it for almost 5 days I
was
thinking about preparing a small test case
posting.
Well I want apache to load all my perl stuff on
restart (USR1) - so I enabled PerlFreshRestart (I
don't want Apache to stat modules on every
request).
Since I was getting 'subroutine redefined'
warnings, I
had put
'PerlRestartHandler Apache::Symbol' - you got the
reason for the problem ?
I'm having hell lot of problems with
PerlFreshRestart.
you will :) see
http://perl.apache.org/guide/troubleshooting.html#Evil_things_might_happen_when_us
and the rest of the guide for more details.
just FYI, but Apache::Reload is much better at
reloading scripts, and
has features that can do pretty much what you want.
HTH
--Geoff
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