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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 44388] New: - Apache 2.0.63 on AIX 5.3 child process crashes
Date Mon, 11 Feb 2008 05:16:56 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=44388

           Summary: Apache 2.0.63 on AIX 5.3 child process crashes
           Product: Apache httpd-2
           Version: 2.0.63
          Platform: Other
        OS/Version: AIX
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Platform
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: ivan.pechorin@gmail.com


Hi, 

We are facing an issue related to Apache 2.0.63 (32-bit) on AIX 5.3 (64-bit):
child process crashes when serving request. We use latest IBM XL C compiler for
AIX (9.0.0.2)

Steps performed: 

1) build zlib and openssl 0.9.8g static libraries (32-bit)

2) configure and build apache 2.0.63 

configure flags:

CC="xlc_r"; export CC
"./configure" \
"--with-mpm=worker" \
"--enable-so" \
"--enable-layout=Apache" \
"--prefix=/opt/apache" \
"--enable-static-support" \
"--enable-mods-static=most" \
"--enable-rewrite" \
"--disable-include" \
"--disable-proxy" \
"--disable-cgid" \
"--disable-cgi" \
"--disable-userdir" \
"--disable-imap" \
"--enable-ssl=static" \
"--with-ssl=/home/apache/build/openssl-for-apache" \
"--with-expat=/home/apache/build/httpd-2.0.63/srclib/apr-util/xml/expat" \
"--enable-deflate" \
"--with-z=/home/apache/build/zlib-for-apache" \
"CC=xlc_r" \

Server compiled with....
 -D APACHE_MPM_DIR="server/mpm/worker"
 -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 SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D HTTPD_ROOT="/opt/apache"
 -D SUEXEC_BIN="/opt/apache/bin/suexec"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="conf/mime.types"
 -D SERVER_CONFIG_FILE="conf/httpd.conf"

Compiled in modules:
  core.c
  mod_access.c
  mod_auth.c
  mod_deflate.c
  mod_log_config.c
  mod_env.c
  mod_setenvif.c
  mod_ssl.c
  worker.c
  http_core.c
  mod_mime.c
  mod_status.c
  mod_autoindex.c
  mod_asis.c
  mod_negotiation.c
  mod_dir.c
  mod_actions.c
  mod_alias.c
  mod_rewrite.c
  mod_so.c

I configured virtual host with SSL requiring client certificate. 


$ cat error_log
[Mon Feb 11 08:50:18 2008] [notice] Apache configured -- resuming normal operations
<< This is where I made an HTTP request >>
[Mon Feb 11 08:50:34 2008] [notice] child pid 401588 exit signal Segmentation
fault (11)
<< Core dump was created here >>


$ dbx /opt/apache/bin/httpd core
Type 'help' for help.
[using memory image in core]
reading symbolic information ...

Segmentation fault in sig_coredump at line 1055 in file "" ($t4)
could not read "mpm_common.c"
(dbx) where
sig_coredump(sig = 11), line 1055 in "mpm_common.c"
setExcludes__FP11request_recP13WLExcludeNodePCc(0x304b8978, 0x304bb730,
0x300e9ab8) at 0xd1eb7fec
updateConfigParam__FP11request_recP10ConfigInfoPcT3(0x304b8978, 0x301c9dd8,
0x301c9c34, 0x300e9ab8) at 0xd1eb7c70
initConfigInfo__FP11request_recP10ConfigInfo(0x304b8978, 0x301c9dd8) at 0xd1eaeeac
request_handler(0x304b8978) at 0xd1ead790
ap_run_handler(r = 0x304b8978), line 152 in "config.c"
ap_invoke_handler(r = 0x304b8978), line 364 in "config.c"
ap_process_request(r = 0x304b8978), line 249 in "http_request.c"
ap_process_http_connection(c = 0x304aea28), line 253 in "http_core.c"
ap_run_process_connection(c = 0x304aea28), line 43 in "connection.c"
ap_process_connection(c = 0x304aea28, csd = 0x304ae938), line 176 in "connection.c"
process_socket(p = 0x304ae900, sock = 0x304ae938, my_child_num = 0,
my_thread_num = 1, bucket_alloc = 0x304b0910), line 522 in "worker.c"
worker_thread(thd = 0x300f1c10, dummy = 0x3014f0e8), line 842 in "worker.c"
dummy_worker(opaque = 0x300f1c10), line 105 in "thread.c"
(dbx)

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