PVE 8.2.2: After Update and reboot NMI: PCI system error

[Adi M]

Running Proxmox PVE 8.2.2.
After Update and reboot I get error "NMI: PCI system error (SERR) for reason b1 on CPU 0." on server HP ProLiant DL380 G6.

What I see: the first 3 of 8 hdd is ZFS-Storage for operationsystem and only one or two led is active. Until grup all Leds ar active

In the post of https://forum.proxmox.com/threads/kernel-crashes-on-dl360.26066/ there is something like

intel_idle.max_cstate=0

I there a way to edit /etc/default/grub and update-grub by rescue access?

 

[MRoman]

I got same problem on HP ProLiant DL380 G6 with proxmox 8.2.2.

On HP ProLiant DL380 G7, HP ProLiant DL380 G8 got ext4 file system problems, it could not be mounted as RW, only RO, I can't login via SSH, but it's ping.

EXT4-fs error (device dm-2) in ext4_mb_clear_bb:6534: error 95
EXT4-fs (dm-2): Remounting filesystem read-only

Workaround to make nodes alive is to choose another linux kernel like: 6.5.13-5-pve
It is seems to me 6.8.4-2-pve is broken for old hardware.

 

[Adi M]

At the moment, I am not possible to change the kernel because the GRUB is not detecting usb keyboard

 

[MRoman]

For manipulations with servers I used HP iLo.
Also found info how to downgrade kernel https://forum.proxmox.com/threads/revert-to-prior-kernel.100310/post-433030
UEFI?

$ proxmox-boot-tool kernel list
$ proxmox-boot-tool kernel add|remove <kernel-version>
$ proxmox-boot-tool refresh

Legacy https://forum.proxmox.com/threads/revert-to-prior-kernel.100310/post-434580