denis.banovic at ncm
Nov 23, 2009, 2:24 AM
Post #1 of 1
(415 views)
Permalink
|
|
AW: print throwing intermittent Segfaults [ solved ]
|
|
Hi Morten,
Thanks a lot,
By putting an eval around the code I found out, that the segfault was produced by next request to the same child after the $r->print failed.
$r->print is still failing from time to time, but it's not producing segfaults anymore!
Thanks
Denis
-----Ursprüngliche Nachricht-----
Von: Morten Bjřrnsvik [mailto:morten.bjornsvik [at] experian-da]
Gesendet: Montag, 23. November 2009 10:16
An: mod_perl list
Betreff: RE: AW: print throwing intermittent Segfaults
Hi
I've had a similar error I "fixed" it by adding an eval block around the offending code which was tracked back to MASON.
http://rt.cpan.org/Public/Bug/Display.html?id=49031
We compile everything from scratch apache,perl,mod_perl,mason, all modules by an automated build script.
Earlier when we run on mod_perl1.99 and the redhat stack it worked fine.
But then we had other worries :-)
--
Morten Bjoernsvik, Developer, Decision Analytics
-----Original Message-----
From: André Warnier [mailto:aw [at] ice-sa]
Sent: 23. november 2009 09:46
To: mod_perl list
Subject: Re: AW: print throwing intermittent Segfaults
Denis Banovic wrote:
> Hi Willian,
>
> Thanks for your checklist, I've run through it, segfaults still there...
> Right now it takes less then a minute from apache restart to the first segfault.
> This is from the error_log from the RedHat 5 Production machine:
>
> Apache2::RequestIO::print: (103) Software caused connection abort at
>
> The guys from rackspace are saying that I should recompile all my perl modules installed directly from CPAN ( see above ) , do you think this would help?
> Or has someone another hint?
>
Just my grain of salt : in my own experience, 99% of the "segfault"
cases I have encountered, was when Apache or Perl tried to run a piece of code not meant for this machine (such as a library meant for another machine or another OS version).
Maybe one of the modules you are using installed a wrong library ?
In that sense, the guys from rackspace may be right, although I believe that the CPAN modules don't generally contain object-code libraries, or else they do compile them at installation.
So maybe it is a library from the RHEL repository which is wrong.
|
