The system will perform additional validation of the kernel heap structures under the debug kernel if the byte at label: _vmkhGflags is set to a non-zero value.
There is a noticeable performance overhead when this option is activated. Therefore it is recommended that it is only used when a heap corruption problem is suspected.
The system will validate the linkages between various heap structures. If an error is detected then an IPE is generated with one of the following messages:
VMKSH: Invalid hint pointers
VMKSH: Invalid number of ksh descriptors
VMKSH: Invalid number of ksh blocks
Invalid heap block header at addr: ssss:oooooooo
Preceding block at addr: ssss:oooooooo
No preceding block