Correctable PCIe AER RxErr on Minisforum M1 Pro 285H / Kingston NVMe with 7.0.14-24 and -25-pve

vaamdlt

New Member
Oct 20, 2026
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Hello,

I would appreciate advice on diagnosing occasional correctable PCIe errors on a Minisforum M1 Pro 285H running Proxmox VE.

Hardware:
- Intel Core Ultra 9 285H; ARBSC motherboard, revision 1.0.
- AMI BIOS 1.01, dated 2025-06-19.
- Kingston OM8TAP41024K1-A00 NVMe, firmware P4ER3B31.
- NVMe endpoint 0000:55:00.0 behind root port 0000:00:1c.0; observed link 16 GT/s x4.
- Active CPU microcode 0x11a.

The issue occurs with both 7.0.14-24-pve and 7.0.14-25-pve. Representative log excerpt:

Code:
nvme 0000:55:00.0: PCIe Bus Error: severity=Correctable, type=Physical Layer, (Receiver ID)
nvme 0000:55:00.0:    [ 0] RxErr                  (First)

A log extraction found 35 events from October 16 to 20, 2026 (1, 5, 6, 19 and 4 respectively). These are partial days with reboots, so the counts are not directly comparable rates. The latest event in that extraction occurred on October 20 at 15:57 CEST, after booting -25 that morning.

Checks so far:
- Targeted log searches found no I/O errors, NVMe timeouts, resets or aborts.
- SMART showed 1 Media/Data Integrity Error and 5 Unsafe Shutdowns, unchanged across the checks. Their dates are unknown; no link to the PCIe events has been established. The NVMe error log was empty and short/extended self-tests passed.
- Errors predate GPU passthrough experiments.
- A temporary test disabled only ASPM L1.2, leaving L1 and PCI-PM L1.2 enabled. No new RxErr appeared during approximately three hours, but that is too short to establish a fix. Reboot restored L1.2; no permanent change has been made.
- I could not find BIOS controls for ASPM/L1.2 or PCIe link speed.

I have read the existing "NVME correctable errors?" thread, but have not established whether the same cause applies here.

Has anyone seen this combination of hardware and kernel? Is there a known ASPM/L1-substate or -pve kernel issue worth checking? What controlled tests and diagnostic output would best distinguish power-management behavior from an SSD/slot/link problem?

I want to diagnose the cause rather than hide AER messages. I can provide sanitized pveversion -v, kernel command line and lspci output if useful.

Thank you.
 
Hi @vaamdlt,

I'm having similar issues with my Epic servers and some WD NVMe SSDs… My Samsung NVMe drives, on the other hand, work without any problems.

The only solution that worked for me was to disable the watchdog and inventory in the BIOS. I don’t know the exact cause, but this solution works for me.
As some publicly available documents indicate, firmware support for certain devices is incomplete.

Do you have any additional information or logs I could take a look at?