PQ65135: PLUGIN CORE DUMPS WITH SIGSEGV ON STARTUP IN LINUX/390 PLUGIN FOR APACHE 1.3.26

 A fix is available

4.0.5: WebSphere Application Server Version 4.0 Fix Pack 5 (Version 4.0.5)



APAR status
Closed as program error.

Error description
When starting Apache 1.3.26 on Suse Linux/390, the plugin
fails with sigsegv when mod_ssl is configured.
The following is in the stack trace:
9650  open("/etc/httpd/access.conf", O_RDONLY) = 4
9650  fstat(4, {st_mode=S_IFREG|0644, st_size=348, ...}) = 0
9650  fstat(4, {st_mode=S_IFREG|0644, st_size=348, ...}) = 0
9650  old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
      MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x400b4000
9650  read(4, "##\n## access.conf -- Apache HTTP"..., 4096
9650  read(4, "", 4096)                 = 0
9650  close(4)                          = 0
9650  munmap(0x400b4000, 4096)          = 0
9650  uname({sys="Linux", node="vorlon", ...}) = 0
9650  --- SIGSEGV (Segmentation fault) ---
Local fix
There is no workaround using Apache and SSL with WebSphere
Problem summary
****************************************************************
* USERS AFFECTED: WebSphere Application Server version 4.0     *
*                 webserver plugin users on Linux 390.         *
****************************************************************
* PROBLEM DESCRIPTION: The plugin would core dump the          *
*                      webserver at startup on Linux 390       *
*                      versions of Apache only.                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
A link option(-lpthread) used by the plugin was causing the
server to core dump at startup.
Problem conclusion
Remove the -lpthread link option from the plugin for Apache
on Linux 390.  This was supposed to be in for Gskit to work
correctly but removing it seemed to have no affect on
the ability to run using SSL.
Temporary fix
The fix has been given to the customer and we are awaiting
positive feedback.
Comments
APAR information
APAR number PQ65135
Reported component name WAS AE LINUX/ZS
Reported component ID 5724B6108
Reported release 400
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2002-08-09
Closed date 2002-09-25
Last modified date 2002-09-25

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros
PLUGIN          

SRLS

Fix information
Fixed component name WAS AE LINUX/ZS
Fixed component ID 5724B6108

Applicable component levels
R400 PSY    UP


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ65135
IBM Group: Software Group
Modified date: Sep 25, 2002