> Source: [sk173950](https://support.checkpoint.com/results/sk/sk173950)

# sk173950 - High CPU for SND cores due to MQ configuration issues on VSX environment

| Property | Value |
|----------|-------|
| Solution ID | sk173950 |
| Date Created | 2021-06-16 |
| Last Modified | 2025-01-27 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82, R81.20, R81.10 (EOS), R81 (EOS) |

## Symptoms

- * After a reboot, the CPU 0 SND core shows high usage, while other SND cores show very low usage compared to CPU 0.

* Some of the interfaces have only CPU 0 assigned as SND core, while other interfaces have all SND cores assigned.

* The *$FWDIR/log/mq_mng.elg* file of the relevant VS shows these error messages:  

  "`[INFO] mq_interfaces.py:194:_init_real_interfaces(): interfaces_list = []`"  

  "`[ERROR] mq_mng:43:(): Error [grep: this version of PCRE is compiled without UTF support`"  

  "`cat: /conf/vsname: No such file or directory`"  

  "``]executing: [/etc/profile.d/vsenv.sh; CTX=`vsget`; vsenv 0 > /dev/null; $FWDIR/scripts/fwaffinity_used_cpus -r;``"{  

  "`./etc/profile.d/vsenv.sh; vsenv $CTX > /dev/null;']`"

## Cause

Multi-Queue Management failed to enforce configuration on interfaces which are Virtual Systems outside of the global context.

## Solution

This problem was fixed. The fix is included in:

* [Jumbo Hotfix Accumulator for R82](https://sc1.checkpoint.com/documents/Jumbo_HFA/R82/Default.htm) starting from Take 10
* [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 90
* [Jumbo Hotfix Accumulator for R81.10](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.10/Default.htm) starting from Take 75
* [Jumbo Hotfix Accumulator for R81](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81/Default.htm) starting from Take 106
* [Jumbo Hotfix Accumulator for R80.40](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk165456) starting from Take 126
* [Jumbo Hotfix Accumulator for R80.30](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk153152) starting from Take 255

If you choose not to upgrade:
A temporary solution to the issue is to run *cpstop;cpstart s*everal times.

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