Re: core dump on RH6.1/Apache 1.3.9/mod_perl 1.21
On 25 Oct, Stephane Benoit wrote: I have recently upgraded from RH6.0 to RH6.1 I'm using Apache 1.3.9, mod-perl 1.21 with perl5.00503 recompiled for the occasion, as well as mod_perl, and it core dumps just before spawning child httpd processes. I had no trouble before on RH6.0 with Apache 1.3.6/mod_perl 1.21. I use a httpd.conf with some Perl tags that are executed properly. The same config file still runs on another RH6.0 server without problems. Could it be a glibc problem ? gdb tells me something like "couldn't access memory at 0x404" before the segmentation fault. I'm going nuts. Any idea ? Stephane. There has been quite a lot of talk along these lines over the last week or so. It seems there are problems with the dynamic loading of mod_perl with apache as installed via the RedHat rpm's. I have two boxes set up with Apache/mod_perl. One worked perfectly well with RedHat's installation, the other showed the problems you describe. The solution was to build Apache and mod_perl from source and statically link mod_perl. Some one on this list has produced source rpm's for this purpose but I have not tried them. Either get the tarballs and do it yourself, or search the list for the reference to the source rpm's. -- John Reid Senior Analyst/Programmer Open Connect (Ireland) Ltd http://www.openconnect.ie/
Re: core dump on RH6.1/Apache 1.3.9/mod_perl 1.21
On 26 Oct, Stas Bekman wrote: But even if I eliminate all mod_perl initialisation params, just having the mod_perl DSO loaded crashes the server. Does that mean that I have to go static ? I'm really surprised: been runnnig the exact same versions on rh6.0 and no problem. That's why I'm suspecting an external cause. DSO is reported to be unstable yet, at least for some platforms/sw releases. I'm using a static build. Seems to be the case. The RedHat rpm distribution works fine on one of my machines and not at all on another. I can think of no obvious reason why it should fail on one and not the other, both machines have very similar set-ups, but that is the way it is. The hand built, statically linked version works perfectly. -- John Reid Senior Analyst/Programmer Open Connect (Ireland) Ltd http://www.openconnect.ie/
Re: core dump on RH6.1/Apache 1.3.9/mod_perl 1.21
But even if I eliminate all mod_perl initialisation params, just having the mod_perl DSO loaded crashes the server. Does that mean that I have to go static ? I'm really surprised: been runnnig the exact same versions on rh6.0 and no problem. That's why I'm suspecting an external cause. DSO is reported to be unstable yet, at least for some platforms/sw releases. I'm using a static build. I have recently upgraded from RH6.0 to RH6.1 I'm using Apache 1.3.9, mod-perl 1.21 with perl5.00503 recompiled for the occasion, as well as mod_perl, and it core dumps just before spawning child httpd processes. I had no trouble before on RH6.0 with Apache 1.3.6/mod_perl 1.21. I use a httpd.conf with some Perl tags that are executed properly. The same config file still runs on another RH6.0 server without problems. Could it be a glibc problem ? gdb tells me something like "couldn't access memory at 0x404" before the segmentation fault. I'm going nuts. Any chance you have PerlFreshRestart turned On? I run RH6.1 with Apache/1.3.10-dev (Unix) mod_perl/1.21_01-dev without any problems... Also try to eliminate the modules you preload, and if server starts without them, try to find out the offending module... Any idea ? Stephane. ___ Stas Bekman mailto:[EMAIL PROTECTED]www.singlesheaven.com/stas Perl,CGI,Apache,Linux,Web,Java,PC at www.singlesheaven.com/stas/TULARC www.apache.org www.perl.com == www.modperl.com || perl.apache.org single o- + single o-+ = singlesheavenhttp://www.singlesheaven.com ___ Stas Bekman mailto:[EMAIL PROTECTED]www.singlesheaven.com/stas Perl,CGI,Apache,Linux,Web,Java,PC at www.singlesheaven.com/stas/TULARC www.apache.org www.perl.com == www.modperl.com || perl.apache.org single o- + single o-+ = singlesheavenhttp://www.singlesheaven.com
Re: core dump on RH6.1/Apache 1.3.9/mod_perl 1.21
I have recently upgraded from RH6.0 to RH6.1 I'm using Apache 1.3.9, mod-perl 1.21 with perl5.00503 recompiled for the occasion, as well as mod_perl, and it core dumps just before spawning child httpd processes. I had no trouble before on RH6.0 with Apache 1.3.6/mod_perl 1.21. I use a httpd.conf with some Perl tags that are executed properly. The same config file still runs on another RH6.0 server without problems. Could it be a glibc problem ? gdb tells me something like "couldn't access memory at 0x404" before the segmentation fault. I'm going nuts. Any chance you have PerlFreshRestart turned On? I run RH6.1 with Apache/1.3.10-dev (Unix) mod_perl/1.21_01-dev without any problems... Also try to eliminate the modules you preload, and if server starts without them, try to find out the offending module... Any idea ? Stephane. ___ Stas Bekman mailto:[EMAIL PROTECTED]www.singlesheaven.com/stas Perl,CGI,Apache,Linux,Web,Java,PC at www.singlesheaven.com/stas/TULARC www.apache.org www.perl.com == www.modperl.com || perl.apache.org single o- + single o-+ = singlesheavenhttp://www.singlesheaven.com
