https://issues.apache.org/bugzilla/show_bug.cgi?id=44538
Summary: Large file using download accelerator causes child
segfault.
Product: Apache httpd-2
Version: 2.2.8
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: normal
Priority: P2
Component: perchild
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
When orbitdownloader (web download accelerator) is used to download a file over
https like https://user:[EMAIL PROTECTED]/7GB.file, the child keeps
dying.
[Wed Mar 05 06:52:39 2008] [notice] child pid 4720 exit signal Segmentation
fault (11)
[Wed Mar 05 06:52:46 2008] [notice] child pid 4721 exit signal Segmentation
fault (11)
[Wed Mar 05 06:57:11 2008] [notice] child pid 4705 exit signal Segmentation
fault (11)
[Wed Mar 05 06:57:17 2008] [notice] child pid 4711 exit signal Segmentation
fault (11)
[Wed Mar 05 06:57:23 2008] [notice] child pid 4708 exit signal Segmentation
fault (11)
[Wed Mar 05 06:57:29 2008] [notice] child pid 4707 exit signal Segmentation
fault (11)
[Wed Mar 05 06:57:35 2008] [notice] child pid 4795 exit signal Segmentation
fault (11)
Tested using LFTP too and got the same result:
lftp -c pget "https://a:[EMAIL PROTECTED]/files/7GBfile.tar", got 463620543 of
7019348523 (6%) 6.16M/s
o..............o...............o...............................o...............
Apparently this issue only happens when there are more than 2 splits of the
file. If using only 2 splits of the file or single connection, no such error
occurs.
The file is downloaded directly from the directory index page.
Server version: Apache/2.2.8 (Unix)
Server built: Mar 4 2008 18:10:57
Server's Module Magic Number: 20051115:11
Server loaded: APR 1.2.12, APR-Util 1.2.12
Compiled using: APR 1.2.12, APR-Util 1.2.12
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="/usr/local/apache2"
-D SUEXEC_BIN="/usr/local/apache2/bin/suexec"
-D DEFAULT_PIDLOG="logs/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="logs/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"
There are the modules in use:
LoadModule authn_file_module modules/mod_authn_file.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_user_module modules/mod_authz_user.so
LoadModule auth_basic_module modules/mod_auth_basic.so
LoadModule auth_digest_module modules/mod_auth_digest.so
LoadModule log_config_module modules/mod_log_config.so
LoadModule log_forensic_module modules/mod_log_forensic.so
LoadModule ssl_module modules/mod_ssl.so
LoadModule mime_module modules/mod_mime.so
LoadModule vhost_alias_module modules/mod_vhost_alias.so
LoadModule dir_module modules/mod_dir.so
LoadModule alias_module modules/mod_alias.so
LoadModule php5_module modules/libphp5.so
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