Ok i've got something more, I installed missing libc6 detached debugging symbols , and now i've got something like this
Core was generated by `/usr/sbin/apache2 -k start'. Program terminated with signal 7, Bus error. #0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119 119 ../sysdeps/x86_64/multiarch/memcpy-ssse3.S: No such file or directory. (gdb) where #0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119 #1 0x00007f74d40d7658 in memcpy (__len=1559, __src=0x7f74d2070000, __dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:52 #2 do_ssl3_write (s=s@entry=0x7f74da519550, type=type@entry=23, buf=buf@entry=0x7f74d2070000 <Address 0x7f74d2070000 out of bounds>, len=1559, create_empty_fragment=create_empty_fragment@entry=0) at s3_pkt.c:798 #3 0x00007f74d40d77c3 in ssl3_write_bytes (s=0x7f74da519550, type=23, buf_=0x7f74d2068000, len=<optimized out>) at s3_pkt.c:609 #4 0x00007f74d0ba3f1d in ssl_filter_write (len=34327, data=<optimized out>, f=<optimized out>) at ssl_engine_io.c:801 #5 ssl_io_filter_output (f=0x7f74d59bcbd0, bb=0x7f74d2f77bb8) at ssl_engine_io.c:1519 #6 0x00007f74d850bc7e in ap_http_header_filter (f=0x7f74d20745b8, b=0x7f74d2f77bb8) at http_filters.c:1327 #7 0x00007f74d84ebc00 in ap_content_length_filter (f=0x7f74d2074590, b=0x7f74d2f77bb8) at protocol.c:1371 #8 0x00007f74d850cf6f in ap_byterange_filter (f=0x7f74d2074568, bb=0x7f74d2f77bb8) at byterange_filter.c:262 #9 0x00007f74d84eefeb in default_handler (r=0x7f74d20730a0) at core.c:3815 #10 0x00007f74d84f9b50 in ap_run_handler (r=0x7f74d20730a0) at config.c:159 #11 0x00007f74d84f9f9b in ap_invoke_handler (r=r@entry=0x7f74d20730a0) at config.c:377 #12 0x00007f74d850a078 in ap_process_request (r=r@entry=0x7f74d20730a0) at http_request.c:282 #13 0x00007f74d8506f38 in ap_process_http_connection (c=0x7f74d59bc290) at http_core.c:190 #14 0x00007f74d8500510 in ap_run_process_connection (c=0x7f74d59bc290) at connection.c:43 #15 0x00007f74d85008f8 in ap_process_connection (c=c@entry=0x7f74d59bc290, csd=<optimized out>) at connection.c:190 #16 0x00007f74d850ec2e in child_main (child_num_arg=child_num_arg@entry=14) at prefork.c:667 #17 0x00007f74d850f382 in make_child (slot=14, s=0x7f74d849a818) at prefork.c:768 #18 make_child (s=0x7f74d849a818, slot=14) at prefork.c:696 #19 0x00007f74d850fee6 in perform_idle_server_maintenance (p=<optimized out>) at prefork.c:903 #20 ap_mpm_run (_pconf=_pconf@entry=0x7f74d84a0028, plog=<optimized out>, s=s@entry=0x7f74d849a818) at prefork.c:1107 #21 0x00007f74d84e4826 in main (argc=3, argv=0x7fff19de3128) at main.c:755 (gdb) bt full #0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119 No locals. #1 0x00007f74d40d7658 in memcpy (__len=1559, __src=0x7f74d2070000, __dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:52 No locals. #2 do_ssl3_write (s=s@entry=0x7f74da519550, type=type@entry=23, buf=buf@entry=0x7f74d2070000 <Address 0x7f74d2070000 out of bounds>, len=1559, create_empty_fragment=create_empty_fragment@entry=0) at s3_pkt.c:798 p = 0x7f74da396358 "\247\066\226+\215\301\217\204$\004\312 \203\031\212\\Bێ\263" plen = 0x7f74da396356 "@ \247\066\226+\215\301\217\204$\004\312 \203\031\212\\Bێ\263" i = <optimized out> mac_size = 0 clear = <optimized out> prefix_len = <optimized out> eivlen = <optimized out> align = <optimized out> wr = 0x7f74da54fb08 wb = 0x7f74da54fab8 sess = <optimized out> #3 0x00007f74d40d77c3 in ssl3_write_bytes (s=0x7f74da519550, type=23, buf_=0x7f74d2068000, len=<optimized out>) at s3_pkt.c:609 buf = 0x7f74d2068000 <Address 0x7f74d2068000 out of bounds> tot = 32768 n = 1559 nw = <optimized out> i = <optimized out> #4 0x00007f74d0ba3f1d in ssl_filter_write (len=34327, data=<optimized out>, f=<optimized out>) at ssl_engine_io.c:801 filter_ctx = <optimized out> outctx = 0x7f74d2084028 res = <optimized out> #5 ssl_io_filter_output (f=0x7f74d59bcbd0, bb=0x7f74d2f77bb8) at ssl_engine_io.c:1519 data = 0x7f74d2068000 <Address 0x7f74d2068000 out of bounds> len = 34327 bucket = 0x7f74d2f784c8 status = <optimized out> filter_ctx = 0x7f74d59bcb98 inctx = <optimized out> outctx = 0x7f74d2084028 rblock = APR_NONBLOCK_READ #6 0x00007f74d850bc7e in ap_http_header_filter (f=0x7f74d20745b8, b=0x7f74d2f77bb8) at http_filters.c:1327 r = 0x7f74d20730a0 c = 0x7f74d2073c80 clheader = <optimized out> protocol = 0x7f74d851290d "HTTP/1.1" e = <optimized out> b2 = <optimized out> h = {pool = 0x7f74d2073028, bb = 0x7f74d2f77c98} ctx = 0x0 ctype = <optimized out> eb = <optimized out> #7 0x00007f74d84ebc00 in ap_content_length_filter (f=0x7f74d2074590, b=0x7f74d2f77bb8) at protocol.c:1371 r = 0x7f74d20730a0 ctx = 0x7f74d2f77c10 e = 0x7f74d2f782e8 ---Type <return> to continue, or q <return> to quit--- eos = <optimized out> eblock = <optimized out> #8 0x00007f74d850cf6f in ap_byterange_filter (f=0x7f74d2074568, bb=0x7f74d2f77bb8) at byterange_filter.c:262 r = 0x7f74d20730a0 c = 0x7f74d59bc290 e = <optimized out> bsend = <optimized out> tmpbb = <optimized out> range_start = <optimized out> range_end = <optimized out> clength = 34327 rv = <optimized out> found = 0 boundary = 0x0 bound_head = 0x0 indexes = <optimized out> idx = <optimized out> i = <optimized out> original_status = 200 max_ranges = 200 #9 0x00007f74d84eefeb in default_handler (r=0x7f74d20730a0) at core.c:3815 c = 0x7f74d59bc290 bb = 0x7f74d2f77bb8 e = <optimized out> d = <optimized out> errstatus = <optimized out> fd = 0x7f74d2f77a68 status = <optimized out> bld_content_md5 = <optimized out> #10 0x00007f74d84f9b50 in ap_run_handler (r=0x7f74d20730a0) at config.c:159 pHook = 0x7f74d8472a08 n = 5 rv = -633773224 #11 0x00007f74d84f9f9b in ap_invoke_handler (r=r@entry=0x7f74d20730a0) at config.c:377 handler = <optimized out> p = <optimized out> result = <optimized out> old_handler = 0x0 ignore = <optimized out> #12 0x00007f74d850a078 in ap_process_request (r=r@entry=0x7f74d20730a0) at http_request.c:282 access_status = <optimized out> #13 0x00007f74d8506f38 in ap_process_http_connection (c=0x7f74d59bc290) at http_core.c:190 r = 0x7f74d20730a0 csd = 0x7f74d59bc0a0 #14 0x00007f74d8500510 in ap_run_process_connection (c=0x7f74d59bc290) at connection.c:43 pHook = 0x7f74d8473098 n = 1 rv = -633773224 #15 0x00007f74d85008f8 in ap_process_connection (c=c@entry=0x7f74d59bc290, csd=<optimized out>) at connection.c:190 rc = <optimized out> #16 0x00007f74d850ec2e in child_main (child_num_arg=child_num_arg@entry=14) at prefork.c:667 ---Type <return> to continue, or q <return> to quit--- current_conn = 0x7f74d59bc290 csd = 0x7f74d59bc0a0 ptrans = 0x7f74d59bc028 allocator = 0x7f74da387d70 status = <optimized out> i = <optimized out> lr = <optimized out> pollset = 0x7f74d59be130 sbh = 0x7f74d59be128 bucket_alloc = 0x7f74d2f78028 last_poll_idx = 1 #17 0x00007f74d850f382 in make_child (slot=14, s=0x7f74d849a818) at prefork.c:768 pid = 0 #18 make_child (s=0x7f74d849a818, slot=14) at prefork.c:696 No locals. #19 0x00007f74d850fee6 in perform_idle_server_maintenance (p=<optimized out>) at prefork.c:903 i = <optimized out> idle_count = <optimized out> ws = <optimized out> free_length = <optimized out> free_slots = {14, 16, 27, 28, 21, 22, 23, 24, -636202856, 32628, -633834224, 32628, -636202848, 32628, -746811863, 32628, -665773615, 32628, 0, 0, 0, 0, 0, 0, -666238936, 32628, -668038208, 32628, -666238936, 32628, -668038176, 32628} last_non_dead = <optimized out> total_non_dead = <optimized out> #20 ap_mpm_run (_pconf=_pconf@entry=0x7f74d84a0028, plog=<optimized out>, s=s@entry=0x7f74d849a818) at prefork.c:1107 status = 7 pid = {pid = -1, in = 0x7f74d82e8c70, out = 0x7f7400316562, err = 0x153} child_slot = <optimized out> exitwhy = 6 processed_status = <optimized out> index = <optimized out> remaining_children_to_start = 0 rv = <optimized out> #21 0x00007f74d84e4826 in main (argc=3, argv=0x7fff19de3128) at main.c:755 c = 0 '\000' configtestonly = 0 confname = 0x7f74d85118ea "apache2.conf" def_server_root = 0x7f74d85118dd "/etc/apache2" temp_error_log = <optimized out> error = <optimized out> process = 0x7f74d84a2118 server_conf = 0x7f74d849a818 pglobal = <optimized out> pconf = 0x7f74d84a0028 plog = 0x7f74d846c028 ptemp = 0x7f74d8498028 pcommands = 0x7f74d849e028 opt = 0x7f74d849e118 rv = 0 mod = <optimized out> optarg = 0x7f74d84a2028 "(\300J\330t\177" ---Type <return> to continue, or q <return> to quit--- signal_server = <optimized out> 2014-03-15 17:38 GMT+01:00 Mark Thom <thommark...@gmail.com>: > Hello, > I'm fighting from few days with "signal Bus error(7)" on my Apache > instance, and i can't figure out what is wrong and what thing is causing > this error.. Thanks in advance for any suggestions what can be wrong! > > Details > ======= > OS: Debian 7.4 amd64 > > # apache2 -V > > Server version: Apache/2.2.22 (Debian) > Server built: Feb 1 2014 21:26:04 > Server's Module Magic Number: 20051115:30 > Server loaded: APR 1.4.6, APR-Util 1.4.1 > Compiled using: APR 1.4.6, APR-Util 1.4.1 > Architecture: 64-bit > Server MPM: Prefork > threaded: no > forked: yes (variable process count) > Server compiled with.... > -D APACHE_MPM_DIR="server/mpm/prefork" > -D APR_HAS_SENDFILE > -D APR_HAS_MMAP > -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) > -D APR_USE_SYSVSEM_SERIALIZE > -D APR_USE_PTHREAD_SERIALIZE > -D APR_HAS_OTHER_CHILD > -D AP_HAVE_RELIABLE_PIPED_LOGS > -D DYNAMIC_MODULE_LIMIT=128 > -D HTTPD_ROOT="/etc/apache2" > -D SUEXEC_BIN="/usr/lib/apache2/suexec" > -D DEFAULT_PIDLOG="/var/run/apache2.pid" > -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" > -D DEFAULT_LOCKFILE="/var/run/apache2/accept.lock" > -D DEFAULT_ERRORLOG="logs/error_log" > -D AP_TYPES_CONFIG_FILE="mime.types" > -D SERVER_CONFIG_FILE="apache2.conf" > > > Module enabled: > > LoadModule alias_module /usr/lib/apache2/modules/mod_alias.so > LoadModule auth_basic_module /usr/lib/apache2/modules/mod_auth_basic.so > LoadModule authn_file_module /usr/lib/apache2/modules/mod_authn_file.so > LoadModule authz_default_module > /usr/lib/apache2/modules/mod_authz_default.so > LoadModule authz_groupfile_module > /usr/lib/apache2/modules/mod_authz_groupfile.so > LoadModule authz_host_module /usr/lib/apache2/modules/mod_authz_host.so > LoadModule authz_user_module /usr/lib/apache2/modules/mod_authz_user.so > LoadModule autoindex_module /usr/lib/apache2/modules/mod_autoindex.so > LoadModule deflate_module /usr/lib/apache2/modules/mod_deflate.so > LoadModule dir_module /usr/lib/apache2/modules/mod_dir.so > LoadModule env_module /usr/lib/apache2/modules/mod_env.so > LoadModule headers_module /usr/lib/apache2/modules/mod_headers.so > LoadModule mime_module /usr/lib/apache2/modules/mod_mime.so > LoadModule negotiation_module /usr/lib/apache2/modules/mod_negotiation.so > LoadModule php5_module /usr/lib/apache2/modules/libphp5.so > LoadModule reqtimeout_module /usr/lib/apache2/modules/mod_reqtimeout.so > LoadModule rewrite_module /usr/lib/apache2/modules/mod_rewrite.so > LoadModule setenvif_module /usr/lib/apache2/modules/mod_setenvif.so > LoadModule ssl_module /usr/lib/apache2/modules/mod_ssl.so > LoadModule status_module /usr/lib/apache2/modules/mod_status.so > LoadModule unique_id_module /usr/lib/apache2/modules/mod_unique_id.so > > > > Message from error logs: > > [Sat Mar 15 14:56:01 2014] [notice] child pid 18171 exit signal Bus error > (7), possible coredump in /tmp/dump > [Sat Mar 15 15:02:32 2014] [notice] child pid 18293 exit signal Bus error > (7), possible coredump in /tmp/dump > [Sat Mar 15 15:08:26 2014] [notice] child pid 18172 exit signal Bus error > (7), possible coredump in /tmp/dump > [Sat Mar 15 15:23:00 2014] [notice] child pid 18181 exit signal Bus error > (7), possible coredump in /tmp/dump > > There is no more details in accesslog / php logs. > > > GDB: > > # gdb /usr/sbin/apache2 core > GNU gdb (GDB) 7.4.1-debian > Copyright (C) 2012 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". > For bug reporting instructions, please see: > <http://www.gnu.org/software/gdb/bugs/>... > Reading symbols from /usr/sbin/apache2...Reading symbols from > /usr/lib/debug/usr/sbin/apache2-mpm-prefork...done. > done. > [New LWP 23033] > > warning: Can't read pathname for load map: Input/output error. > > warning: > "/usr/lib/debug/.build-id/84/bee3ec119629745f1abb696a297d23ef52d3ba.debug": > separate debug info file has no debug info > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". > > warning: the debug information found in > "/usr/lib/debug//usr/lib/php5/20100525/mysql.so" does not match > "/usr/lib/php5/20100525/mysql.so" (CRC mismatch). > > > warning: the debug information found in > "/usr/lib/debug/usr/lib/php5/20100525/mysql.so" does not match > "/usr/lib/php5/20100525/mysql.so" (CRC mismatch). > > > warning: the debug information found in > "/usr/lib/debug//usr/lib/php5/20100525/mysqli.so" does not match > "/usr/lib/php5/20100525/mysqli.so" (CRC mismatch). > > > warning: the debug information found in > "/usr/lib/debug/usr/lib/php5/20100525/mysqli.so" does not match > "/usr/lib/php5/20100525/mysqli.so" (CRC mismatch). > > > warning: the debug information found in > "/usr/lib/debug//usr/lib/php5/20100525/pdo_mysql.so" does not match > "/usr/lib/php5/20100525/pdo_mysql.so" (CRC mismatch). > > > warning: the debug information found in > "/usr/lib/debug/usr/lib/php5/20100525/pdo_mysql.so" does not match > "/usr/lib/php5/20100525/pdo_mysql.so" (CRC mismatch). > > Core was generated by `/usr/sbin/apache2 -k start'. > Program terminated with signal 7, Bus error. > #0 0x00007f74d7778300 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 > (gdb) bt > #0 0x00007f74d7778300 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 > #1 0x00007f74d40d7658 in memcpy (__len=16384, __src=0x7f74d2066000, > __dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:52 > #2 do_ssl3_write (s=s@entry=0x7f74da39a5f0, type=type@entry=23, > buf=buf@entry=0x7f74d2066000 <Address 0x7f74d2066000 out of bounds>, > len=16384, > create_empty_fragment=create_empty_fragment@entry=0) at s3_pkt.c:798 > #3 0x00007f74d40d77c3 in ssl3_write_bytes (s=0x7f74da39a5f0, type=23, > buf_=0x7f74d2066000, len=<optimized out>) at s3_pkt.c:609 > #4 0x00007f74d0ba3f1d in ssl_filter_write (len=40766, data=<optimized > out>, f=<optimized out>) at ssl_engine_io.c:801 > #5 ssl_io_filter_output (f=0x7f74d59bcbd0, bb=0x7f74d2079bd8) at > ssl_engine_io.c:1519 > #6 0x00007f74d850bc7e in ap_http_header_filter (f=0x7f74d20825b8, > b=0x7f74d2079bd8) at http_filters.c:1327 > #7 0x00007f74d84ebc00 in ap_content_length_filter (f=0x7f74d2082590, > b=0x7f74d2079bd8) at protocol.c:1371 > #8 0x00007f74d850cf6f in ap_byterange_filter (f=0x7f74d2082568, > bb=0x7f74d2079bd8) at byterange_filter.c:262 > #9 0x00007f74d84eefeb in default_handler (r=0x7f74d20810a0) at core.c:3815 > #10 0x00007f74d84f9b50 in ap_run_handler (r=0x7f74d20810a0) at config.c:159 > #11 0x00007f74d84f9f9b in ap_invoke_handler (r=r@entry=0x7f74d20810a0) at > config.c:377 > #12 0x00007f74d850a078 in ap_process_request (r=r@entry=0x7f74d20810a0) > at http_request.c:282 > #13 0x00007f74d8506f38 in ap_process_http_connection (c=0x7f74d59bc290) at > http_core.c:190 > #14 0x00007f74d8500510 in ap_run_process_connection (c=0x7f74d59bc290) at > connection.c:43 > #15 0x00007f74d85008f8 in ap_process_connection (c=c@entry=0x7f74d59bc290, > csd=<optimized out>) at connection.c:190 > #16 0x00007f74d850ec2e in child_main (child_num_arg=child_num_arg@entry=13) > at prefork.c:667 > #17 0x00007f74d850f382 in make_child (slot=13, s=0x7f74d849a818) at > prefork.c:768 > #18 make_child (s=0x7f74d849a818, slot=13) at prefork.c:696 > #19 0x00007f74d850fee6 in perform_idle_server_maintenance (p=<optimized > out>) at prefork.c:903 > #20 ap_mpm_run (_pconf=_pconf@entry=0x7f74d84a0028, plog=<optimized out>, > s=s@entry=0x7f74d849a818) at prefork.c:1107 > #21 0x00007f74d84e4826 in main (argc=3, argv=0x7fff19de3128) at main.c:755 > > > > > > >