DMESG error occurred during NVMe SSD(P4510) hot plug

[Elvisliu]

We got the NVMe hot plug error with receive error, Bad TLP, BDLLP and completion timeout occur before the link down present in Dmesg. The log as attached, does anyone has any idea on it.
Please kindly to share your idea for these error. Thank you.

Test Configurtion:
OS : CentOS 7.6 (Kernel 5.02)
CPU: CLX 6230R
Memory : 12 * 16G
NVMe: INTEL P4510 (FW: VDV10170)
VMD enabled.
Hot Plug Capable  Enabled
Surprise Hot Plug Capable Enabled

[JosafathB_Intel]

Hello Elvisliu,

Thank you for contacting Intel® Memory and Storage support.

As we understand, you need assistance with your Intel® SSD DC P4510 Series. If we infer correctly, please provide us with the following information:

*Please extract the following logs by using the Intel® Memory and Storage Tool (CLI):

https://downloadcenter.intel.com/download/29337/Intel-Memory-and-Storage-Tool-CLI-Command-Line-Inter...

-1. SMART attributes: intelmas show -smart -intelssd “SSD_index”.

-2. The SSD information using show -all command from Intel MAS CLI: intelmas show -all -intelssd “SSD_index”.

Replace the “SSD_index” with the actual index number of your SSD.

A complete User Guide is available below:

https://downloadmirror.intel.com/29337/eng/Intel_Memory_And_Storage_Tool_User%20Guide-Public-342245-...

-3 We need you to provide us with the system details by extracting the SSU logs and the replication steps to try to determine the root cause. 

The SSU logs.

1- Go to https://downloadcenter.intel.com/download/25293/ (for Windows*) and to https://downloadcenter.intel.com/download/26735/ (for Linux) download the software.

2- When you finish downloading it, open it.

3- Attach the file generated by the tool in your reply.

We will be looking forward to your reply.

Best regards.

Josh B.

Intel® Customer Support Technician

A Contingent Worker at Intel® 

[Elvisliu]

Dear Josh, 

Thanks for your kindly reply, those error messages don't be occurred by specific SSD more likely random events. I got information form Intel VROC team agrees to support VMD hotplug in centOS 7.6 with kernel 5.02 in Purley Platform. The schedule is trending like Intel complete the validation and deliver the package by 11/20.

Therefore, we can close the event here, since it might be caused by OS kernel problem.

User guide path is invalid

[JosafathB_Intel]

Hello Elvisliu,

Thank you for your reply,

As per your consent, we will close this community thread. If you need further assistance related to your Intel® products, please do not hesitate to contact us back.

Best regards,

Josh B.
Intel® Customer Support Technician
A Contingent Worker at Intel®

[Elvisliu]

Dear Josh, 

No problem, thanks for your support.