topic RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts? in ExtremeCloud IQ- Site Engine Management Center

Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Dean_Ferraro — Fri, 07 Apr 2017 18:32:00 GMT

Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts? There are two controllers running in HA(sync) mode with approx. 725 3825i APs spilt between them. Have not seen any other alarms or events associated with this except when checking on status of virtual server cli. All APs are currently running on a single controller and there does appear to have a secondary tunnel back to primary controller. Has anyone else experienced similar issues and any suggestions on how to determine root cause and solution will be greatly appreciated.

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Scott_Whall — Fri, 07 Apr 2017 18:37:00 GMT

Hi Dean - you can get the Tech Support log files for each V2110 and open a GTAC case, or you can try upgrading to 10.11.06, which is on the Support Download site.

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Ronald_Dvorak — Fri, 07 Apr 2017 18:41:00 GMT

Have you set the SCSI controller on the VM to paravirtual as mentioned in the release notes ?

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Dean_Ferraro — Fri, 07 Apr 2017 18:41:00 GMT

Will be opening the case shortly just trying to do some diligence prior. Could you advise how to collect and view the logs? Doesn't appear I can do from the CLI

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Ronald_Dvorak — Fri, 07 Apr 2017 18:41:00 GMT

https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-Collect-a-Tech-Support-File-From-a-...

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Ronald_Dvorak — Fri, 07 Apr 2017 18:41:00 GMT

CLI command...

#tech_support all

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Ronald_Dvorak — Fri, 07 Apr 2017 18:41:00 GMT

and to move the file..

#show tech_support

V2110-1# copy tech_support ?
Upload tech_support file to server.
Usage: copy tech_support [scp ]

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Dean_Ferraro — Fri, 07 Apr 2017 18:41:00 GMT

Thank you very much gathering info now

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Dean_Ferraro — Fri, 07 Apr 2017 18:43:00 GMT

VMs set to paravirtual when upgraded to this version, confirming still in this state. thx

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Dean_Ferraro — Fri, 07 Apr 2017 18:47:00 GMT

Confirmed both VM controllers still set to Paravirtual

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Gareth_Mitchell — Fri, 07 Apr 2017 19:27:00 GMT

Dean

Please also see these articles: https://gtacknowledge.extremenetworks.com/articles/Q_A/What-settings-should-I-check-and-what-data-should-I-gather-in-the-event-that-my-v2110-controller-on-VMware-crashes-during-normal-operation

https://gtacknowledge.extremenetworks.com/articles/Solution/v2110-controller-crash-skb-release-data-seen-in-crash-data

-Gareth

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Dean_Ferraro — Fri, 07 Apr 2017 20:16:00 GMT

Contacting GTAC now, unless you can assist me directly??

RE: Virtual Wireless Controller V2110 Large running v10.11.03.0004 has a kernel failure two days in a row. Any thoughts?

Dean_Ferraro — Tue, 11 Apr 2017 00:38:00 GMT

Thank you Gareth, good call on the firmware upgrade. It did the trick