APAR status
Closed as program error.
Error description
For this issue, the error_log must first report an apr_thread_create error: ... (11)Resource temporarily unavailable: apr_thread_create: unable to create worker thread... Then almost immediately after, if mod_backtrace or mod_whatkilledus are present they may log a sig 11 or sig 7: .... pid 12345 mod_backtrace backtrace for sig 11 (thread "pid" 12345) or ... pid 12345 mod_whatkilledus sig 11 crash The following message may also be logged, depending on the timing of the apr_thread_create error: ... (9)Bad file descriptor: apr_pollset_poll failed.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM HTTP Server with startup * * failures * **************************************************************** * PROBLEM DESCRIPTION: In cases where startup is doomed to * * fail due to apr_thread_create() errors, * * the server may crash * * before gracefully exiting. This crash * * symptom is a distraction from * * troubleshooting the resource- * * related thread creation failure. * **************************************************************** * RECOMMENDATION: * **************************************************************** The thread creation failure happens so early that many other basic startup items are skipped, so some assumptions made during shutdown processing were invalid.
Problem conclusion
The code was updated to exit gracefully during resource related startup failures, avoiding crashing on the way out. The fix for this APAR is targeted for inclusion in IBM HTTP Server fix packs 8.5.5.26 and 9.0.5.20. For more information, se 'Recommended Updates for WebSphere Application Server': https://www.ibm.com/support/pages/node/715553
Temporary fix
Comments
APAR Information
APAR number
PH60306
Reported component name
IBM HTTP SERVER
Reported component ID
5724J0801
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2024-03-12
Closed date
2024-05-31
Last modified date
2024-05-31
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
IBM HTTP SERVER
Fixed component ID
5724J0801
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTJ","label":"IBM HTTP Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
01 June 2024