[Bug 53579] httpd looping writing on a pipe and unresponsive (httpd )

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=53579

--- Comment #5 from george <gc...@gmail.com> ---
(In reply to comment #4)
> Could reproduce it again. Basically it is writing to the pod (pipe of death)
> and is stuck in it forever. All the child processes are in defunct state.
> httpd is no more able to server any further requests.. Can someone please
> respond. I am increasing the severity to blocker as it stops serving any
> requests and is practically not usable.

Please let me know if any more info
> is needed as I still have the system in this state.

I am bumping into the exact same problem, but I cannot reproduce it.
Could you please let me know how did you reproduce this problem?
Thank you


Backtrace:

(gdb) #0  0xb7cd330e in write () from /lib/libpthread.so.0
(gdb) #1  0x080e1947 in apr_file_write ()
(gdb) #2  0x08080147 in ap_mpm_pod_signal ()
(gdb) #3  0x080b1aa1 in ap_mpm_run ()
(gdb) #4  0x08067ef2 in main ()

All child processes are <defunct>


Server version: Apache/2.2.3
Server built:   Oct  6 2011 18:06:51
Server's Module Magic Number: 20051115:3
Server loaded:  APR 1.2.7, APR-Util 1.2.7
Compiled using: APR 1.2.7, APR-Util 1.2.7
Architecture:   32-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 SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=128
 -D HTTPD_ROOT="/"
 -D SUEXEC_BIN="//bin/suexec"
 -D DEFAULT_PIDLOG="/var/run/apache2.pid"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_LOCKFILE="var/run/accept.lock"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="etc/apache/mime.types"
 -D SERVER_CONFIG_FILE="etc/apache/httpd.conf"

Compiled in modules:
  core.c
  mod_authn_file.c
  mod_authn_default.c
  mod_authz_host.c
  mod_authz_groupfile.c
  mod_authz_user.c
  mod_authz_default.c
  mod_auth_basic.c
  mod_include.c
  mod_filter.c
  mod_log_config.c
  mod_env.c
  mod_setenvif.c
  mod_ssl.c
  prefork.c
  http_core.c
  mod_mime.c
  mod_status.c
  mod_autoindex.c
  mod_asis.c
  mod_cgi.c
  mod_negotiation.c
  mod_dir.c
  mod_actions.c
  mod_userdir.c
  mod_alias.c
  mod_so.c

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