https://bz.apache.org/bugzilla/show_bug.cgi?id=61861
Bug ID: 61861 Summary: "double free or corruption" under high load when also used with mod_authn_dbd Product: Apache httpd-2 Version: 2.4.29 Hardware: PC OS: Linux Status: NEW Severity: normal Priority: P2 Component: mod_authnz_ldap Assignee: bugs@httpd.apache.org Reporter: air...@gmail.com Target Milestone: --- Created attachment 35588 --> https://bz.apache.org/bugzilla/attachment.cgi?id=35588&action=edit memory errors under high load Server version: Apache/2.4.29 (Unix) Server built: Nov 2 2017 12:15:50 Server's Module Magic Number: 20120211:68 Server loaded: APR 1.6.3, APR-UTIL 1.6.1 Compiled using: APR 1.6.3, APR-UTIL 1.6.1 Architecture: 64-bit Server MPM: event threaded: yes (fixed thread count) forked: yes (variable process count) OS: RHEL 6.9 We've recently started experimenting with multiple AuthBasicProvider's, namely ldap and dbd. For the authentication database, we are using a local SQLite3 DB. The ldap provider is specified first in the list (AuthBasicProvider ldap dbd). We ran the Apache Benchmark tool (ab) on a different server to check the speed at high load, using -n1000 and -c1000. The -A option was used to specify either valid LDAP credentials or valid credentials in the SQLite database. When valid LDAP credentials are used, there are no bad requests or errors in the log. When valid credentials in the SQLite database are used, however, there are sometime failed requests with messages in the error log similar to what is attached. We should also note that when we just specify the dbd provider (AuthBasicProvider dbd), we haven't experienced any failed requests or errors in the log. We only see failed requests and errors when using both providers (AuthBasicProvider ldap dbd) with valid credentials for the dbd provider. Please let me know if you require more information than what I've provided. Thank you for your time and effort! -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: bugs-unsubscr...@httpd.apache.org For additional commands, e-mail: bugs-h...@httpd.apache.org