Azure Gateway freezes / crashes during Azure server maintenance

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Azure Gateway freezes / crashes during Azure server maintenance

Technical Level

Solution ID	sk166674
Technical Level
Product	CloudGuard Network for Azure
Version	R80.20 (EOL), R80.30 (EOL), R80.40
OS	Gaia
Platform / Model	Azure
Date Created	06-May-2020
Last Modified	10-Oct-2021

Symptoms

Azure Gateway freezes or crashes with no core file created.

The following appears in /var/log/messages:

 
Apr 19 15:39:18 2020 va81intranet000000 kernel: hv_netvsc  eth0: Data path switched from VF: enP1p0s2
Apr 19 15:39:18 2020 va81intranet000000 kernel: hv_netvsc  eth0: VF unregistering: enP1p0s2

The following might also appear in /var/log/messages:

Apr 19 15:43:43 2020 va81intranet000000 kernel: mlx4_core: Initializing 0002:00:02.0
Apr 19 15:43:43 2020 va81intranet000000 kernel: mlx4_core 0002:00:02.0: Detected virtual function - running in slave mode

Cause

As part of the maintenance on the Azure server, virtual functions (VFs) are removed and restored (interfaces enP1s02 and enp2s02).

Rarely, the VM might crash or freeze due to this action.

Solution

This problem was fixed. The fix is included in:

R80.30 CloudGuard for Azure Gateway image version R80.30-273.614 and above, see sk132192 for more information
Jumbo Hotfix Accumulator for R80.40 Take 38
Jumbo Hotfix Accumulator for R80.30 Take 195

For other versions, Contact Check Point Support to get a Hotfix for this issue. A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix. For faster resolution and verification please collect CPinfo files from the Security Management and Security Gateways involved in the case.

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

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