PK02657: MOD_IBM_SSL THREAD-SAFETY ISSUE CAUSES CRASH | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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APAR status Closed as fixed if next. Error description There was a thread safety issue in mod_ibm_ssl which could cause intermittent crashes while updating tables of SSL data which are provided to IHS plug-in modules. In order to encounter this problem, the IHS configuration must have included multiple SSL-enabled virtual hosts, and there must be requests to the different SSL-enabled virtual hosts at the same time as soon as a new child process is created. Thus, the problem would be rarely seen except in high-load servers.Local fix Problem summary Special processing is performed on first client connection to each SSL-enabled vhost with each child process. There was a problem when the first connection to multiple SSL-enabled vhosts arrived at the same time. A problem with serialization could result in multiple threads using the same memory, resulting in corruption of a table that is accessed on each SSL request.Problem conclusion Temporary fix Comments This APAR is being closed as Fixed IF Next. There is a deficiency that we currently plan to fix if there is another release.
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
Publications Referenced
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Product categories: Software > Application Servers >
Distributed Application & Web Servers > IBM HTTP Server >
Runtime
Operating system(s):
Software version: 00S
Software edition:
Reference #: PK02657
IBM Group: Software Group
Modified date: Apr 11, 2005
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