pfSense

Note this was after adding a 3rd party SSD.

The clean installation procedure on the 3rd party SSD went smoothly, but the issue persisted with no other side effects.

Danilo Zrenjanin wrote in #note-3:

The clean installation procedure on the 3rd party SSD went smoothly, but the issue persisted with no other side effects.

What make and model is the SSD?

Installing the SSD drive in another port did not resolve the issue. It behaved in the same way.

The TAC ticket number for reference is:
2157407569

same issue here. 6100, 23.09.1

onboard mmc died, added a WD SN520 NVME SSD.

same console output

Another one TAC ticket with the same issue
2336421939

Another user having this issue on a 5100. 2396258146

Customer reported this issue utilizing a Dogfish 2242 M.2 SSD. Model SSDMCEAC060B3A. Customer ticket 2396258146.

Another customer having this issue on a 5100 with a SHARKSPEED SSD M.2 2242 128GB. 2423567446

Same issue. Factory Netgate 6100. No add-ons or changes. 23.09.1
Have NOT changed the internal storage. Factory everything.

Another user encountered the same issue with their Netgate 6100 device after installing the Transcend TS256GMTE460T NVMe SSD drive.

The internal ticket reference number for this issue is #2488837032.

The 256 GB WD NVMe SSD performs without any issues when used with the Netgate 6100.