GNU gdb (GDB) 7.1-ubuntu Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: . (gdb) handle SIG33 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) attach 4605 Attaching to process 4605 Reading symbols from /usr/lib/apache2/mpm-prefork/apache2...done. Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 [Thread debugging using libthread_db enabled] 0x00007f259dd27cc3 in epoll_wait () from /lib/libc.so.6 (gdb) continue Continuing. Program received signal SIGSEGV, Segmentation fault. 0x00007f25960dec60 in ?? () from /lib/libcrypto.so.0.9.8 (gdb) backtrace full #0 0x00007f25960dec60 in ?? () from /lib/libcrypto.so.0.9.8 No symbol table info available. #1 0x00007f2595e2c309 in engine_unlocked_init () from /lib/libcrypto.so.0.9.8 No symbol table info available. #2 0x00007f2595e2cf79 in engine_table_select () from /lib/libcrypto.so.0.9.8 No symbol table info available. #3 0x00007f2595e43878 in EVP_CipherInit_ex () from /lib/libcrypto.so.0.9.8 No symbol table info available. #4 0x00007f2596b28352 in tls1_change_cipher_state () from /lib/libssl.so.0.9.8 No symbol table info available. #5 0x00007f2596b21a02 in ssl3_do_change_cipher_spec () from /lib/libssl.so.0.9.8 No symbol table info available. #6 0x00007f2596b22f9b in ssl3_read_bytes () from /lib/libssl.so.0.9.8 No symbol table info available. #7 0x00007f2596b23972 in ssl3_get_message () from /lib/libssl.so.0.9.8 No symbol table info available. #8 0x00007f2596b173b1 in ssl3_get_cert_verify () from /lib/libssl.so.0.9.8 No symbol table info available. #9 0x00007f2596b1a870 in ssl3_accept () from /lib/libssl.so.0.9.8 No symbol table info available. #10 0x00007f2596b24305 in ssl23_get_client_hello () from /lib/libssl.so.0.9.8 No symbol table info available. #11 0x00007f2596b24ad5 in ssl23_accept () from /lib/libssl.so.0.9.8 No symbol table info available. #12 0x00007f2594c5dab8 in ?? () from /usr/lib/apache2/modules/mod_ssl.so No symbol table info available. #13 0x00007f2594c5ea38 in ?? () from /usr/lib/apache2/modules/mod_ssl.so No symbol table info available. #14 0x00007f259eac0626 in ap_rgetline_core (s=0x7f25a00a77a8, n=, read=, r=, fold=, bb=) at /build/buildd/apache2-2.2.14/server/protocol.c:231 rv = e = 0x7f25a00a8cf8 bytes_handled = 0 current_alloc = 0 pos = last_char = do_alloc = 1 saw_eos = 0 #15 0x00007f259eac0fa6 in read_request_line (conn=0x7f25a0093938) at /build/buildd/apache2-2.2.14/server/protocol.c:596 rv = ll = pro = major = 1 minor = 0 http = "\030\353Ϟ%" len = 139799575476536 num_blank_lines = 0 max_blank_lines = 100 uri = #16 ap_read_request (conn=0x7f25a0093938) at /build/buildd/apache2-2.2.14/server/protocol.c:891 r = 0x7f25a00a7778 p = 0x7f25a00a76f8 expect = access_status = tmp_bb = 0x7f25a00a8cf8 csd = cur_timeout = #17 0x00007f259eadb490 in ap_process_http_connection (c=0x7f25a0093938) at /build/buildd/apache2-2.2.14/modules/http/http_core.c:183 r = 0x2 csd = 0x0 #18 0x00007f259ead4cf8 in ap_run_process_connection (c=0x7f25a0093938) at /build/buildd/apache2-2.2.14/server/connection.c:43 n = 2 rv = -1777472416 #19 0x00007f259eae3037 in child_main (child_num_arg=) at /build/buildd/apache2-2.2.14/server/mpm/prefork/prefork.c:662 current_conn = csd = 0x7f25a0093748 ptrans = 0x7f25a00936c8 allocator = 0x7f25a0047180 status = i = lr = pollset = 0x7f25a00917c8 sbh = 0x7f25a00917c0 bucket_alloc = 0x7f25a00976e8 last_poll_idx = 1 #20 0x00007f259eae3306 in make_child (s=0x7f259fa0f938, slot=0) at /build/buildd/apache2-2.2.14/server/mpm/prefork/prefork.c:702 No locals. #21 0x00007f259eae3953 in ap_mpm_run (_pconf=, plog=, s=) at /build/buildd/apache2-2.2.14/server/mpm/prefork/prefork.c:978 index = remaining_children_to_start = rv = #22 0x00007f259eab9350 in main (argc=4, argv=0x7fffa0521868) at /build/buildd/apache2-2.2.14/server/main.c:742 c = 88 'X' configtestonly = confname = 0x7f259eae592b "/etc/apache2/apache2.conf" def_server_root = 0x7f259eae952b "" temp_error_log = 0x0 error = process = 0x7f259fa07220 server_conf = 0x7f259fa0f938 pglobal = 0x7f259fa07128 pconf = 0x7f259fa09138 plog = 0x7f259fa3d2d8 ptemp = 0x7f259fa11178 pcommands = 0x7f259fa0b148 opt = 0x7f259fa0b240 rv = mod = optarg = 0x0 (gdb) info registers rax 0x7f25960dec60 139799408012384 rbx 0x7f259fe35100 139799572992256 rcx 0x8 8 rdx 0x0 0 rsi 0x0 0 rdi 0x7f259fe35100 139799572992256 rbp 0x1 0x1 rsp 0x7fffa0520c48 0x7fffa0520c48 r8 0x7f259fc0be50 139799570726480 r9 0x11fd 4605 r10 0x10 16 r11 0x1d0 464 r12 0x7f259fe35100 139799572992256 r13 0x7f25a00a5148 139799575548232 r14 0x0 0 r15 0x7f25a00a5188 139799575548296 rip 0x7f25960dec60 0x7f25960dec60 eflags 0x10206 [ PF IF RF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 (gdb) x/16i $pc => 0x7f25960dec60: add %al,(%rax) 0x7f25960dec63: add %al,0x0(%rcx) 0x7f25960dec66: add %al,(%rax) 0x7f25960dec68: adc $0x0,%al 0x7f25960dec6a: add %al,(%rax) 0x7f25960dec6c: add %al,(%rax) 0x7f25960dec6e: add %al,(%rax) 0x7f25960dec70: add %al,(%rax) 0x7f25960dec72: add %al,(%rax) 0x7f25960dec74: add %al,(%rax) 0x7f25960dec76: add %al,(%rax) 0x7f25960dec78: loopne 0x7f25960decb5 0x7f25960dec7a: in $0x95,%al 0x7f25960dec7c: and $0xd000007f,%eax 0x7f25960dec81: cmp %esp,%esp 0x7f25960dec83: xchg %eax,%ebp (gdb) thread apply all backtrace Thread 1 (Thread 0x7f259ea5f740 (LWP 4605)): #0 0x00007f25960dec60 in ?? () from /lib/libcrypto.so.0.9.8 #1 0x00007f2595e2c309 in engine_unlocked_init () from /lib/libcrypto.so.0.9.8 #2 0x00007f2595e2cf79 in engine_table_select () from /lib/libcrypto.so.0.9.8 #3 0x00007f2595e43878 in EVP_CipherInit_ex () from /lib/libcrypto.so.0.9.8 #4 0x00007f2596b28352 in tls1_change_cipher_state () from /lib/libssl.so.0.9.8 #5 0x00007f2596b21a02 in ssl3_do_change_cipher_spec () from /lib/libssl.so.0.9.8 #6 0x00007f2596b22f9b in ssl3_read_bytes () from /lib/libssl.so.0.9.8 #7 0x00007f2596b23972 in ssl3_get_message () from /lib/libssl.so.0.9.8 #8 0x00007f2596b173b1 in ssl3_get_cert_verify () from /lib/libssl.so.0.9.8 #9 0x00007f2596b1a870 in ssl3_accept () from /lib/libssl.so.0.9.8 #10 0x00007f2596b24305 in ssl23_get_client_hello () from /lib/libssl.so.0.9.8 #11 0x00007f2596b24ad5 in ssl23_accept () from /lib/libssl.so.0.9.8 #12 0x00007f2594c5dab8 in ?? () from /usr/lib/apache2/modules/mod_ssl.so #13 0x00007f2594c5ea38 in ?? () from /usr/lib/apache2/modules/mod_ssl.so #14 0x00007f259eac0626 in ap_rgetline_core (s=0x7f25a00a77a8, n=, read=, r=, fold=, bb=) at /build/buildd/apache2-2.2.14/server/protocol.c:231 #15 0x00007f259eac0fa6 in read_request_line (conn=0x7f25a0093938) at /build/buildd/apache2-2.2.14/server/protocol.c:596 #16 ap_read_request (conn=0x7f25a0093938) at /build/buildd/apache2-2.2.14/server/protocol.c:891 #17 0x00007f259eadb490 in ap_process_http_connection (c=0x7f25a0093938) at /build/buildd/apache2-2.2.14/modules/http/http_core.c:183 #18 0x00007f259ead4cf8 in ap_run_process_connection (c=0x7f25a0093938) at /build/buildd/apache2-2.2.14/server/connection.c:43 #19 0x00007f259eae3037 in child_main (child_num_arg=) at /build/buildd/apache2-2.2.14/server/mpm/prefork/prefork.c:662 #20 0x00007f259eae3306 in make_child (s=0x7f259fa0f938, slot=0) at /build/buildd/apache2-2.2.14/server/mpm/prefork/prefork.c:702 #21 0x00007f259eae3953 in ap_mpm_run (_pconf=, plog=, s=) at /build/buildd/apache2-2.2.14/server/mpm/prefork/prefork.c:978 #22 0x00007f259eab9350 in main (argc=4, argv=0x7fffa0521868) at /build/buildd/apache2-2.2.14/server/main.c:742 (gdb) quit A debugging session is active. Inferior 1 [process 4605] will be detached. Quit anyway? (y or n) Detaching from program: /usr/lib/apache2/mpm-prefork/apache2, process 4605