For what it is worth and in case anyone googles for this issue in future, the segvs went away when I applied the latest kernel patches and glibc stuff for redhat9, and the latest perl install, from updates.redhat.com
the kernel is now 2.4.20-30.9smp perl is now perl 5.8.0 with MAINT18379 patch I did not recompile modperl or apache after the OS upgrade. strace on child processes started working again as well. I think base redhat9 (shrike) with no updates is not quite trustworthy for apache. thanks for the explanation, though, it'll help in future. -justin SB> justin wrote: >> Our modperl servers with apache+modperl >= versions 1.3.28 and modperl >> 1.28, crash randomly with >> >> [Tue Mar 9 18:02:17 2004] [notice] child pid 10940 exit signal Segmentation fault >> (11) SB> [...] >> How can I best debug this? perhaps capture the segv and do a stack trace >> or write a core file? it only happens in production, or if it happens in >> dev, then I need a production-like request rate anyway. SB> Configure the system to allow core files dumping as explained here: SB> http://perl.apache.org/docs/2.0/devel/debug/c.html#Getting_the_core_File_Dumped SB> once you have the core file, you can get the backtrace to find where it fails: SB> http://perl.apache.org/docs/1.0/guide/help.html#How_to_Report_Problems SB> or may be you will have luck with this module: SB> http://search.cpan.org/dist/Debug-FaultAutoBT/ SB> __________________________________________________________________ SB> Stas Bekman JAm_pH ------> Just Another mod_perl Hacker SB> http://stason.org/ mod_perl Guide ---> http://perl.apache.org SB> mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com SB> http://modperlbook.org http://apache.org http://ticketmaster.com -- Best regards, justin mailto:[EMAIL PROTECTED] -- Report problems: http://perl.apache.org/bugs/ Mail list info: http://perl.apache.org/maillist/modperl.html List etiquette: http://perl.apache.org/maillist/email-etiquette.html
