IBM JDK Crashes And Generates Java Core When Allocating Large Objects In Heap
(Doc ID 1115503.1)
Last updated on AUGUST 03, 2018
Applies to:Oracle Containers for J2EE - Version 10.1.2.2.0 to 10.1.2.3.0 [Release AS10gR2]
Information in this document applies to any platform.
Running Applications deployed in OC4J/OAS 10.1.2 with IBM JDK 1.4.2. When the JVM tries to allocate space in the Heap for a large object, it crashes and generates java-core and heap-dump files although the Heap has enough space for the large object. Increasing the Heap Size doesn't help. The javacore file shows:
1XHSIGRECV Unexpected signal -1 received at 0x0 in <unknown>. Processing terminated.
The GC logs - enabled by (-verbose:gc) - shows:
<AF: managing allocation failure, action=2 (253433944/536803840)>
<AF: completed in 80 ms>
<AF: Allocation Failure. need 5498928 bytes, 2665974 ms since last AF>
<AF: managing allocation failure, action=2 (382089984/536803840)>
<AF: completed in 77 ms>
<AF: Allocation Failure. need 8192 bytes, 375728 ms since last AF>
<AF: managing allocation failure, action=0 (460890248/536803840)>
<AF: completed in 64 ms>
<AF: Allocation Failure. need 6455416 bytes, 11534074 ms since last AF>
<AF: managing allocation failure, action=2 (194364344/536803840)>
<AF: completed in 98 ms>
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