Corrupted memory and/or user-mode code dumps on Azure Gateways and OCI

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Technical Level

Solution ID	sk164838
Technical Level
Product	CloudGuard Network for Azure, CloudGuard Network for OCI
Version	R80.30
Platform / Model	Azure, Oracle Cloud Infrastructure
Date Created	22-Jan-2020
Last Modified	20-Jul-2020

Symptoms

Corrupted HKLM_registry.data file.
Large amount of usermode core files on the system.

Cause

The selected Azure image size D2v2 (Ds2v2) is a 2 core image size, which means that the fw_workers and SNDs share the same resources. As a result, there are cases in which the resources are not properly released and cause some processes to core dump.

The fwmultik_sync_processing_enabled (synchronous dequeue feature) kernel parameter is enabled. This limits the CPU to handle fewer stack functions simultaneously.

Solution

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