https://bz.apache.org/bugzilla/show_bug.cgi?id=66005
--- Comment #12 from Lothar <lothar.web...@gmail.com> --- Hi Rainer, Yes, this happens immediately after start up. According to strace 47µs after start: 0.000047 rt_sigreturn({mask=[]}) = 3342918277296713689 0.000047 --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_USER, si_pid=3657936, si_uid=0} --- 0.143521 +++ killed by SIGSEGV (core dumped) +++ I tried both MPM prefork and worker. (but usually we use prefork) Apache 2.4.53 ( I tried also older Versions like 2.4.46) APR: 1.7.0 / APR-Util 1.6.1 We are using self compiled binaries. Yes it is RHEL8 4.18.0-348.20.1.el8_5.x86_64 The self compiled binaries we are using since more then 10 years But after last OS patching we have such issue, I never experienced something like this. Yes, I think there is something in conflict between OS and our apache modules/libraries. No there are no incomming requests it is a development environment. This is the output, after adding your log enhancements: [Fri Apr 15 12:32:15.822 2022] [482404:0] [error] jk_resolve::jk_connect.c (419): Creating jk_apr_pool from main pool 0x25783c8p [Fri Apr 15 12:32:15.822 2022] [482404:0] [error] jk_resolve::jk_connect.c (425): Created jk_apr_pool 0x2625098p from main pool 0x25783c8p [Fri Apr 15 12:32:15.959 2022] [482404:0] [error] ajp_validate::jk_ajp_common.c (2868): worker theWorker1 can't resolve tomcat address host2.example.org [Fri Apr 15 12:32:15.959 2022] [482404:0] [error] jk_resolve::jk_connect.c (427): Reusing jk_apr_pool 0x2625098p, main pool 0x25783c8p [Fri Apr 15 12:32:16.067 2022] [482404:0] [error] ajp_validate::jk_ajp_common.c (2868): worker theWorker0 can't resolve tomcat address host1.example.org [Fri Apr 15 12:32:16.067 2022] [482404:0] [info] init_jk::mod_jk.c (3591): mod_jk/1.2.48 initialized [Fri Apr 15 12:32:16.075 2022] [482433:0] [error] jk_resolve::jk_connect.c (427): Reusing jk_apr_pool 0x2625098p, main pool 0x25783c8p Thanks a lot for your support. KR, Lothar -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org