https://bz.apache.org/bugzilla/show_bug.cgi?id=60439
--- Comment #9 from [email protected] --- Hello, Finally we have an coredump with all debugging symbols enabled. Sorry for the long delay. We are not able to reproduce the segfault by now, we have to wait for one. They appear not frequently. Here is the backtrace, if more information is needed don't hesitate to ask. GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1 Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> 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". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /opt/loadbalancer/apache/bin/httpd...done. [New LWP 126431] [New LWP 125676] [New LWP 126433] [New LWP 126435] [New LWP 126437] [New LWP 126438] [New LWP 126440] [New LWP 126442] [New LWP 126444] [New LWP 126446] [New LWP 126448] [New LWP 126450] [New LWP 126454] [New LWP 126456] [New LWP 126458] [New LWP 126460] [New LWP 126462] [New LWP 126464] [New LWP 126466] [New LWP 126468] [New LWP 126470] [New LWP 126472] [New LWP 126476] [New LWP 126478] [New LWP 126479] [New LWP 126481] [New LWP 126290] [New LWP 126291] [New LWP 126293] [New LWP 126294] [New LWP 126296] [New LWP 126297] [New LWP 126298] [New LWP 126299] [New LWP 126301] [New LWP 126303] [New LWP 126304] [New LWP 126307] [New LWP 126309] [New LWP 126311] [New LWP 126315] [New LWP 126317] [New LWP 126319] [New LWP 126321] [New LWP 126323] [New LWP 126327] [New LWP 126329] [New LWP 126331] [New LWP 126333] [New LWP 126336] [New LWP 126338] [New LWP 126341] [New LWP 126343] [New LWP 126346] [New LWP 126348] [New LWP 126350] [New LWP 126352] [New LWP 126354] [New LWP 126356] [New LWP 126358] [New LWP 126360] [New LWP 126362] [New LWP 126364] [New LWP 126366] [New LWP 126368] [New LWP 126369] [New LWP 126371] [New LWP 126373] [New LWP 126375] [New LWP 126377] [New LWP 126381] [New LWP 126383] [New LWP 126385] [New LWP 126387] [New LWP 126389] [New LWP 126391] [New LWP 126394] [New LWP 126398] [New LWP 126399] [New LWP 126403] [New LWP 126405] [New LWP 126407] [New LWP 126409] [New LWP 126418] [New LWP 126421] [New LWP 126425] [New LWP 126427] [New LWP 126429] [New LWP 126423] [New LWP 126452] [New LWP 126474] [New LWP 126292] [New LWP 126295] [New LWP 126302] [New LWP 126305] [New LWP 126313] [New LWP 126325] [New LWP 126379] [New LWP 126396] [New LWP 126401] [New LWP 126411] [New LWP 126300] warning: Could not load shared library symbols for 2 libraries, e.g. /lib/snoopy.so. Use the "info sharedlibrary" command to see the complete listing. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/opt/loadbalancer/apache/bin/httpd -k start'. Program terminated with signal SIGSEGV, Segmentation fault. #0 send_brigade_nonblocking (s=0x7fe19c0e1f08, bb=0x7fe1fc0e4370, bytes_written=0x5, c=0x7fe1a4017168) at /opt/unpack/httpd-2.4.23/server/core_filters.c:664 664 if (!APR_BUCKET_IS_METADATA(bucket)) { (gdb) info sharedlibrary >From To Syms Read Shared Object Library No linux-vdso.so.1 No /lib/snoopy.so 0x00007fe20a1720a0 0x00007fe20a187e60 Yes /opt/loadbalancer/pcre/lib/libpcre.so.1 0x00007fe209f53250 0x00007fe209f6774f Yes /opt/loadbalancer/apr-util/lib/libaprutil-1.so.0 0x00007fe209d24b60 0x00007fe209d3cff9 Yes (*) /lib/x86_64-linux-gnu/libexpat.so.1 0x00007fe209afb9b0 0x00007fe209b15f14 Yes /opt/loadbalancer/apr/lib/libapr-1.so.0 0x00007fe2098e9350 0x00007fe2098ec06c Yes /lib/x86_64-linux-gnu/librt.so.1 0x00007fe2096b0cc0 0x00007fe2096b58b4 Yes /lib/x86_64-linux-gnu/libcrypt.so.1 0x00007fe2094989f0 0x00007fe2094a4771 Yes /lib/x86_64-linux-gnu/libpthread.so.0 0x00007fe20928fed0 0x00007fe20929097e Yes /lib/x86_64-linux-gnu/libdl.so.2 0x00007fe208f034a0 0x00007fe20902f943 Yes /lib/x86_64-linux-gnu/libc.so.6 0x00007fe20a595ae0 0x00007fe20a5ae140 Yes /lib64/ld-linux-x86-64.so.2 0x00007fe2038993b0 0x00007fe20389db4e Yes /lib/x86_64-linux-gnu/libnss_compat.so.2 0x00007fe203684160 0x00007fe20368f693 Yes /lib/x86_64-linux-gnu/libnsl.so.1 0x00007fe2034771a0 0x00007fe20347d1bc Yes /lib/x86_64-linux-gnu/libnss_nis.so.2 0x00007fe20326b2a0 0x00007fe203271ba3 Yes /lib/x86_64-linux-gnu/libnss_files.so.2 0x00007fe20681e0e0 0x00007fe20684d474 Yes (*) /usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2 0x00007fe206603540 0x00007fe20660a4d2 Yes (*) /usr/lib/x86_64-linux-gnu/liblber-2.4.so.2 0x00007fe2063eca90 0x00007fe2063f8a76 Yes /lib/x86_64-linux-gnu/libresolv.so.2 0x00007fe2061d0310 0x00007fe2061e1293 Yes (*) /usr/lib/x86_64-linux-gnu/libsasl2.so.2 0x00007fe205ed4400 0x00007fe205f9093a Yes (*) /usr/lib/x86_64-linux-gnu/libgnutls-deb0.so.28 0x00007fe205c95220 0x00007fe205ca6469 Yes (*) /lib/x86_64-linux-gnu/libz.so.1 0x00007fe205a5a4f0 0x00007fe205a76edc Yes (*) /usr/lib/x86_64-linux-gnu/libp11-kit.so.0 0x00007fe20583bc80 0x00007fe205846a0b Yes (*) /usr/lib/x86_64-linux-gnu/libtasn1.so.6 0x00007fe20560d360 0x00007fe2056295ca Yes (*) /usr/lib/x86_64-linux-gnu/libnettle.so.4 0x00007fe2053deb60 0x00007fe2053e9676 Yes (*) /usr/lib/x86_64-linux-gnu/libhogweed.so.2 0x00007fe205161480 0x00007fe2051bf228 Yes (*) /usr/lib/x86_64-linux-gnu/libgmp.so.10 0x00007fe204f4e870 0x00007fe204f5301c Yes (*) /usr/lib/x86_64-linux-gnu/libffi.so.6 0x00007fe203067d70 0x00007fe2030686a0 Yes /opt/loadbalancer/apr-util/lib/apr-util-1/apr_ldap-1.so 0x00007fe208ce2a20 0x00007fe208ce3389 Yes /opt/loadbalancer/apache/modules/mod_dumpio.so 0x00007fe208ae0db0 0x00007fe208ae15d6 Yes /opt/loadbalancer/apache/modules/mod_log_forensic.so 0x00007fe2088dec60 0x00007fe2088df1f5 Yes /opt/loadbalancer/apache/modules/mod_logio.so 0x00007fe2086c70d0 0x00007fe2086d5bae Yes /opt/loadbalancer/apache/modules/mod_proxy.so 0x00007fe2084be1f0 0x00007fe2084bfcfc Yes /opt/loadbalancer/apache/modules/mod_proxy_connect.so 0x00007fe2082b52f0 0x00007fe2082baddc Yes /opt/loadbalancer/apache/modules/mod_proxy_ftp.so 0x00007fe2080ac6b0 0x00007fe2080b0ff8 Yes /opt/loadbalancer/apache/modules/mod_proxy_http.so 0x00007fe207ea0200 0x00007fe207ea607f Yes /opt/loadbalancer/apache/modules/mod_proxy_balancer.so 0x00007fe207c9c740 0x00007fe207c9cbe8 Yes /opt/loadbalancer/apache/modules/mod_lbmethod_byrequests.so 0x00007fe207a9a740 0x00007fe207a9ac1e Yes /opt/loadbalancer/apache/modules/mod_lbmethod_bybusyness.so 0x00007fe2078961c0 0x00007fe2078982db Yes /opt/loadbalancer/apache/modules/mod_status.so 0x00007fe207688350 0x00007fe207690f53 Yes /opt/loadbalancer/apache/modules/mod_rewrite.so 0x00007fe207482fa0 0x00007fe2074839a8 Yes /opt/loadbalancer/apache/modules/mod_unixd.so 0x00007fe20727fe90 0x00007fe207280e78 Yes /opt/loadbalancer/apache/modules/mod_auth_basic.so 0x00007fe20707cdd0 0x00007fe20707d7cc Yes /opt/loadbalancer/apache/modules/mod_authz_host.so 0x00007fe206e79ed0 0x00007fe206e7a652 Yes /opt/loadbalancer/apache/modules/mod_authn_core.so 0x00007fe206c75570 0x00007fe206c7713a Yes /opt/loadbalancer/apache/modules/mod_authz_core.so 0x00007fe206a64620 0x00007fe206a6d29f Yes /opt/loadbalancer/apache/modules/mod_ldap.so 0x00007fe204d41e00 0x00007fe204d48387 Yes /opt/loadbalancer/apache/modules/mod_authnz_ldap.so 0x00007fe204b3df50 0x00007fe204b3e942 Yes /opt/loadbalancer/apache/modules/mod_expires.so 0x00007fe2049397c0 0x00007fe20493b1ed Yes /opt/loadbalancer/apache/modules/mod_headers.so 0x00007fe204732d40 0x00007fe20473589b Yes /opt/loadbalancer/apache/modules/mod_log_config.so 0x00007fe20452faf0 0x00007fe20452fe6b Yes /opt/loadbalancer/apache/modules/mod_env.so 0x00007fe20432c080 0x00007fe20432d7e6 Yes /opt/loadbalancer/apache/modules/mod_slotmem_shm.so 0x00007fe203ff2870 0x00007fe2040d501e Yes (*) /usr/lib/x86_64-linux-gnu/libxml2.so.2 0x00007fe203da3850 0x00007fe203db8082 Yes (*) /lib/x86_64-linux-gnu/liblzma.so.5 0x00007fe203aa5580 0x00007fe203b10d96 Yes /lib/x86_64-linux-gnu/libm.so.6 No /lib/x86_64-linux-gnu/libnss_sss.so.2 0x00007fe200232ab0 0x00007fe2002429a5 Yes (*) /lib/x86_64-linux-gnu/libgcc_s.so.1 0x00007fe20002b100 0x00007fe20002dff0 Yes /lib/x86_64-linux-gnu/libnss_dns.so.2 (*): Shared library is missing debugging information. (gdb) bt full #0 send_brigade_nonblocking (s=0x7fe19c0e1f08, bb=0x7fe1fc0e4370, bytes_written=0x5, c=0x7fe1a4017168) at /opt/unpack/httpd-2.4.23/server/core_filters.c:664 vec = {{iov_base = 0x7fe1c00c8ef8, iov_len = 7482}, {iov_base = 0x7fe1c00caf08, iov_len = 710}, { iov_base = 0x47c2ca, iov_len = 2}, {iov_base = 0x7fe19c0e2d68, iov_len = 5}, { iov_base = 0x7fe194107208, iov_len = 8000}, {iov_base = 0x7fe19c0e18c8, iov_len = 110}, { iov_base = 0x47c2ca, iov_len = 2}, {iov_base = 0x7fe19c0e2548, iov_len = 6}, { iov_base = 0x7fe1c00c0eb8, iov_len = 7882}, {iov_base = 0x7fe1a4006938, iov_len = 310}, { iov_base = 0x47c2ca, iov_len = 2}, {iov_base = 0x7fe19c0e2a48, iov_len = 6}, { iov_base = 0x7fe1c00bae88, iov_len = 7682}, {iov_base = 0x7fe1940f7188, iov_len = 510}, { iov_base = 0x47c2ca, iov_len = 2}, {iov_base = 0x7fe19c0e24a8, iov_len = 6}} nvec = 4 #1 0x00000000004491e1 in send_brigade_blocking (c=<optimized out>, bytes_written=<optimized out>, bb=<optimized out>, s=<optimized out>) at /opt/unpack/httpd-2.4.23/server/core_filters.c:733 No locals. #2 ap_core_output_filter (f=0x7fe19c0e1f08, new_bb=0x7fe1fc0e4370) at /opt/unpack/httpd-2.4.23/server/core_filters.c:542 c = 0x7fe1fc0e3dd8 bytes_in_brigade = 0 non_file_bytes_in_brigade = 140606962540296 eor_buckets_in_brigade = 5 morphing_bucket_in_brigade = -662995824 #3 0x00000000004626b1 in ap_process_request (r=0x7fe194101230) at /opt/unpack/httpd-2.4.23/modules/http/http_request.c:451 bb = 0x7fe1fc0e4370 c = 0x7fe1fc0e3dd8 rv = 48 #4 0x000000000045e9b5 in ap_process_http_sync_connection (c=0x7fe1fc0e3dd8) at /opt/unpack/httpd-2.4.23/modules/http/http_core.c:210 keep_alive_timeout = 5000000 r = 0x7fe194101230 cs = 0x0 csd = 0x0 mpm_state = 0 #5 ap_process_http_connection (c=0x7fe1fc0e3dd8) at /opt/unpack/httpd-2.4.23/modules/http/http_core.c:251 No locals. #6 0x0000000000456d30 in ap_run_process_connection (c=0x7fe1fc0e3dd8) at /opt/unpack/httpd-2.4.23/server/connection.c:42 pHook = <optimized out> n = 0 rv = -1 #7 0x0000000000468f81 in process_socket (bucket_alloc=<optimized out>, my_thread_num=<optimized out>, my_child_num=<optimized out>, sock=<optimized out>, p=<optimized out>, thd=<optimized out>) at /opt/unpack/httpd-2.4.23/server/mpm/worker/worker.c:631 current_conn = 0x7fe1fc0e3dd8 conn_id = 140608573160920 sbh = 0x7fe1fc0e3dd0 #8 worker_thread (thd=0x7fe19c0e1f08, dummy=0x7fe1d87b7c90) at /opt/unpack/httpd-2.4.23/server/mpm/worker/worker.c:992 process_slot = 19 thread_slot = 74 csd = 0x7fe1fc0e3bc0 bucket_alloc = 0x9 last_ptrans = 0x7fe1fc0e3dd8 ptrans = 0x7fe1fc0e3b38 is_idle = -66176064 #9 0x00007fe20949b0a4 in start_thread (arg=0x7fe1d87b8700) at pthread_create.c:309 __res = <optimized out> pd = 0x7fe1d87b8700 now = <optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140607976343296, 7960264032231149677, 0, 140608815194208, 152, 140607976343296, -7945694442286690195, -7945304783828627347}, mask_was_saved = 0}}, priv = {pad = { 0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = <optimized out> pagesize_m1 = <optimized out> sp = <optimized out> freesize = <optimized out> __PRETTY_FUNCTION__ = "start_thread" #10 0x00007fe208fcc62d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 No locals. (gdb) best regards, Stefan -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
