[ https://issues.jboss.org/browse/MODCLUSTER-526?page=com.atlassian.jira.pl... ] Michal Karm Babacek updated MODCLUSTER-526: ------------------------------------------- Description: * 3 tomcats * 2 load balancing groups * 1 request every 3 seconds (no load at all) * shutdown and kill of various nodes * no later than third kill/start iteration causes SIGSEGV {code} #if AP_MODULE_MAGIC_AT_LEAST(20101223,1) /* Here that is tricky the worker needs shared memory but we don't and CONFIG will reset it */ helper->index = 0; /* mark it removed */ worker->s = helper->shared; crash---> memcpy(worker->s, stat, sizeof(proxy_worker_shared)); #else worker->id = 0; /* mark it removed */ #endif {code} was: * 3 tomcats * 2 load balancing groups * 1 request every 3 seconds (no load at all) * shutdown and kill of various nodes * no later than third kill/start iteration causes SIGSEGV {code} h==9005== Thread 5: ==9005== Source and destination overlap in memcpy(0x4021068, 0x4021068, 304) ==9005== at 0x4C2B403: memcpy@(a)GLIBC_2.14 (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==9005== by 0xB28ECA1: insert_update (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_manager.so) ==9005== by 0xB07BCC2: ap_slotmem_do (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_cluster_slotmem.so) ==9005== by 0xB28ED6B: insert_update_node (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_manager.so) ==9005== by 0xB28666D: process_node_cmd (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_manager.so) ==9005== by 0xB286AA7: process_appl_cmd (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_manager.so) ==9005== by 0xB28745A: process_remove (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_manager.so) ==9005== by 0xB28B619: manager_handler (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_manager.so) ==9005== by 0x44CEEF: ap_run_handler (config.c:170) ==9005== by 0x44D438: ap_invoke_handler (config.c:434) ==9005== by 0x461D89: ap_process_async_request (http_request.c:410) ==9005== by 0x45E4AF: ap_process_http_connection (http_core.c:154) ==9005== ==9005== Thread 3: ==9005== Invalid write of size 8 ==9005== at 0x4C2B473: memcpy@(a)GLIBC_2.14 (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==9005== by 0xB499EE5: remove_workers_node (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_proxy_cluster.so) ==9005== by 0xB49E165: remove_workers_nodes (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_proxy_cluster.so) ==9005== by 0xB49E353: proxy_cluster_watchdog_func (in /home/karm/Projects/MOD_CLUSTER/httpd-2.4.20-build/modules/mod_proxy_cluster.so) ==9005== by 0x5B5FEE4: start_thread (pthread_create.c:309) ==9005== by 0x606DD1C: clone (clone.S:111) ==9005== Address 0x0 is not stack'd, malloc'd or (recently) free'd {code} -- This message was sent by Atlassian JIRA (v6.4.11#64026)