What could be causing the DRIVER_IRQL_NOT_LESS_OR_EQUAL error in the RDS CUSTOM server ?

Question

An RDS CUSTOM SQL server has experienced two reboots within the past month. During one of these incidents, the CPU spiked to 99.8%, causing the system to crash.

The information provided is from the memory dump generated during one of the reboots.

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
 
SYMBOL_NAME:  windrbd+9375f
MODULE_NAME: windrbd
IMAGE_NAME:  **windrbd.sys
**IMAGE_VERSION:  1.1.2.0
STACK_COMMAND:  .cxr; .ecxr ; kb
BUCKET_ID_FUNC_OFFSET:  9375f
FAILURE_BUCKET_ID:  AV_windrbd!unknown_function
OS_VERSION:  10.0.17763.1

Didier_Durand · Answer

Hi, you seem to be running v1.1.2.0 of windrbd.sys. This driver has now a version 1.1.6. See https://github.com/LINBIT/windrbd/releases/tag/windrbd-1.1.6

Probably, the first thing to try is to update it.

What could be causing the DRIVER_IRQL_NOT_LESS_OR_EQUAL error in the RDS CUSTOM server ?

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