Hi , I have been run into "
And I see this is the same as described in bug 656425 , so I download the patch attached there(fastcgi-FD_SETSIZE-bug.patch bug: 656425, link<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=656425#5>), but after recompile, I see stack over flow error now: [Tue Feb 04 00:26:00 2014] [info] mod_ssl/2.2.22 compiled against Server: Apache/2.2.22, Library: OpenSSL/1.0.1 [Tue Feb 04 00:26:00 2014] [notice] Apache/2.2.22 (Ubuntu) DAV/2 SVN/1.6.17 mod_fastcgi/mod_fastcgi-SNAP-0910052141 mod_ssl/2.2.22 OpenSSL/1.0.1 configured -- resuming normal operations [Tue Feb 04 00:26:00 2014] [info] Server built: Jul 12 2013 13:37:15 *** buffer overflow detected ***: /usr/sbin/apache2 terminated ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7fa6702c2f47] /lib/x86_64-linux-gnu/libc.so.6(+0x109e40)[0x7fa6702c1e40] /lib/x86_64-linux-gnu/libc.so.6(+0x10aefe)[0x7fa6702c2efe] /usr/lib/apache2/modules/mod_fastcgi.so(+0x61e7)[0x7fa66bfa51e7] /usr/lib/apache2/modules/mod_fastcgi.so(+0x744d)[0x7fa66bfa644d] /usr/lib/apache2/modules/mod_fastcgi.so(+0x7c39)[0x7fa66bfa6c39] /usr/sbin/apache2(ap_run_handler+0x48)[0x7fa671094bb8] /usr/sbin/apache2(ap_invoke_handler+0xce)[0x7fa67109502e] /usr/sbin/apache2(ap_internal_redirect_handler+0x43)[0x7fa6710a49a3] /usr/lib/apache2/modules/mod_actions.so(+0xc8b)[0x7fa66f749c8b] /usr/sbin/apache2(ap_run_handler+0x48)[0x7fa671094bb8] /usr/sbin/apache2(ap_invoke_handler+0xce)[0x7fa67109502e] /usr/sbin/apache2(ap_internal_redirect+0x5c)[0x7fa6710a3fbc] /usr/lib/apache2/modules/mod_rewrite.so(+0x5635)[0x7fa66b782635] /usr/sbin/apache2(ap_run_handler+0x48)[0x7fa671094bb8] /usr/sbin/apache2(ap_invoke_handler+0xce)[0x7fa67109502e] /usr/sbin/apache2(ap_process_request+0x1a0)[0x7fa6710a4950] /usr/sbin/apache2(+0x4e778)[0x7fa6710a1778] /usr/sbin/apache2(ap_run_process_connection+0x48)[0x7fa67109b658] /usr/sbin/apache2(+0x57b1c)[0x7fa6710aab1c] /usr/lib/libapr-1.so.0(+0x2e417)[0x7fa6707c3417] /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7fa67057fe9a] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7fa6702ac3fd] ======= Memory map: ======== Any idea?