> Source: [sk184201](https://support.checkpoint.com/results/sk/sk184201)

# sk184201 - Dynamic Balancing becomes disabled due to high CPU consumption

| Property | Value |
|----------|-------|
| Solution ID | sk184201 |
| Date Created | 2025-10-29 |
| Last Modified | 2025-12-17 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## Symptoms

- * Dynamic Balancing on one of the cluster members automatically shuts down.
* The dsd.elg file shows logs:  
  `ds_dmd_start_paired_wts_on_pcpu: Failed to find a stopped worker of dmd_0`  
  `ds_dmd_start_paired_wts: ds_dmd_start_wt_on_pcpu failed`
* The `/var/log/messages` file shows:  
  `[dsd PID]@Host[DATE TIME] recover_record_runtime_state: Recording runtime state`  
  ` ds_prepare_load_info: Error bad CPU list size: 0. entity: SND`  
  ` ds_single_cycle: Failure at ds_sample_loads. skipping round`  
  ` ds_prepare_load_info: Error bad CPU list size: 0. entity: SND`  
  ` ds_single_cycle: Failure at ds_sample_loads. skipping round`  
  ` ds_prepare_load_info: Error bad CPU list size: 0. entity: SND`  
  ` ds_single_cycle: Failure at ds_sample_loads. skipping round`  
  ` ds_prepare_load_info: Error bad CPU list size: 0. entity: SND`  
  ` ds_single_cycle: Failure at ds_sample_loads. skipping round`  
  ` ds_prepare_load_info: Error bad CPU list size: 0. entity: SND`

## Cause

There were changes made by the DMD single core mode, which allows adding a worker thread on the same physical CPU core as the DMD mgr.  
This mode has caused multiple issues with dynamic split.

## Solution

[Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing it.  
For faster resolution and verification, collect these files:

1. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Management Server involved in the case.
2. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Security Gateway / each Cluster Member / Security Group involved in the case.

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix](https://support.checkpoint.com/results/sk/sk168597).

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