Troubleshooting
Problem
When a javacore is generated by an OOM error, most often it shows that the OOM error is due to "Java heap space" (i.e. ran out of heap space), yet occasionally we see the cause: "Failed to create a thread" and the javacore will contain something like this:
...
Dump Event "systhrow" (00040000) Detail "java/lang/OutOfMemoryError" "Failed to create a thread: retVal -1073741830, errno 11" received
...
Dump Event "systhrow" (00040000) Detail "java/lang/OutOfMemoryError" "Failed to create a thread: retVal -1073741830, errno 11" received
...
Symptom
When the JVM reaches OutOfMemory (OOM) with error "Failed to create a thread" that is a typical sign of running out of native memory (as opposed to running out of Java heap space).
Document Location
Worldwide
[{"Type":"SW","Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"ARM Category":[{"code":"a8m50000000CdAmAAK","label":"OutOfMemory-\u003ENative"}],"ARM Case Number":"TS005358711","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Version(s)"}]
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Historical Number
TS005328366;TS005358711
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Document Information
Modified date:
03 March 2025
UID
ibm16441095