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JVM Controller (dejvm) Crashes with High CPU Usage (Doc ID 1598962.1)

Last updated on MAY 22, 2023

Applies to:

Oracle Forms - Version and later
Oracle Forms for OCI - Version and later
Information in this document applies to any platform.


JVM Controller crashes with high CPU usage.

- When the crash occurs the following stack is "dumped" in the file hs_err_xxx.log  :

Stack: [0xffffffff6b400000,0xffffffff6b5fc000], sp=0xffffffff6b5fab90, free space=2026k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [] strncmp+0x268
C [] remnfd+0xe4
C [] deprfsubtree+0xf4
C [] deprftext+0x60
C [dejvm_exe+0x43750] qmt_alloc+0x43750
C [dejvm_exe+0x438f8] qmt_alloc+0x438f8
C [dejvm_exe+0x48e14] qmt_alloc+0x48e14

- When the high CPU usage occurs , the JVM controller will run for some time but the dejvm process uses a large amount of CPU.



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