[users@httpd] Crash in mod_ldap.so only during stress.

2013-05-16 Thread Mangesh Sawant
Hi, stressing mod_ldap.so for 500 users with 100 TPS. Only during stress I can see crash. Following is the stack stress. #0 0x02a9db03 in ldap_int_open_connection () from /home/alepo/rbsisp/libldap-2.3.so.0 #1 0x02ab17e6 in ldap_new_connection () from /home/alepo/rbsisp/libldap-2.3.so.0 #2

Re: [users@httpd] Crash in mod_ldap.so only during stress.

2013-05-16 Thread Eric Covener
Is this prefork, or are there other threads? On Thu, May 16, 2013 at 6:55 AM, Mangesh Sawant m.v.saw...@gmail.com wrote: Hi, stressing mod_ldap.so for 500 users with 100 TPS. Only during stress I can see crash. Following is the stack stress. #0 0x02a9db03 in ldap_int_open_connection ()

Re: [users@httpd] Crash in mod_ldap.so only during stress.

2013-05-16 Thread Mangesh Sawant
Yes, there are 20 threads sending auth request. On Thu, May 16, 2013 at 5:37 PM, Eric Covener cove...@gmail.com wrote: Is this prefork, or are there other threads? On Thu, May 16, 2013 at 6:55 AM, Mangesh Sawant m.v.saw...@gmail.com wrote: Hi, stressing mod_ldap.so for 500 users with

Re: [users@httpd] Crash in mod_ldap.so only during stress.

2013-05-16 Thread Eric Covener
On Thu, May 16, 2013 at 8:18 AM, Mangesh Sawant m.v.saw...@gmail.com wrote: Yes, there are 20 threads sending auth request. I mean in the server. The one you posted doesn't look like it crashed. On Thu, May 16, 2013 at 5:37 PM, Eric Covener cove...@gmail.com wrote: Is this prefork, or are

Re: [users@httpd] Crash in mod_ldap.so only during stress.

2013-05-16 Thread Mangesh Sawant
Thanks for quick reply. Getting crash at different places during each new stress run. Following is gdb trace showing crash starting from ldap_search_ext_s(). Actual crash taking place in libldap-2.3.so.0. #0 0xf779f430 in __kernel_vsyscall () #1 0x007d2d11 in raise () from /lib/libc.so.6 #2