[PVE-User] Debugging Proxmox crash

[lst_hoe02 at kwsoft.de]

Hello,

we have the problem that from time to time our Proxmox node crash  
badly (kernel panic). We have checked the machines involved without  
error and the crash is wandering if along with the main load, so  
harware should be fine.
The load consist of about 10-15 VMs with Linux/Windows and nearly all  
us virtio block devices which are located at a local RAID1 or RAID10.  
There are some "special" configurations with serial line access (USV  
Monitoring) and one machine with a LPT-Dongle but beside this nothing  
fancy. Shortly before the latest crash we have this in the log:

daemon.log.1:Nov  6 17:05:20 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 30002 socket - timeout after 31 retries
daemon.log.1:Nov  6 17:05:30 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 30002 socket - timeout after 31 retries
daemon.log.1:Nov  6 17:05:33 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 30005 socket - timeout after 31 retries
daemon.log.1:Nov  6 17:05:36 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 31030 socket - timeout after 31 retries
daemon.log.1:Nov  6 17:05:39 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 30004 socket - timeout after 31 retries
daemon.log.1:Nov  6 17:05:42 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 31013 socket - timeout after 31 retries
daemon.log.1:Nov  6 17:05:45 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 30002 socket - timeout after 31 retries
daemon.log.1:Nov  6 17:05:48 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 30005 socket - timeout after 31 retries
daemon.log.1:Nov  6 17:05:51 pve-intern-02 pvestatd[2796]: WARNING:  
unable to connect to VM 31030 socket - timeout after 31 retries

Proxmox is latest with community subscription. We will now try to get  
a panic log with netconsole if this is supported by proxmox

https://openvz.org/Remote_console_setup

Any further ideas are welcome

Thanks

Andreas