[pve-devel] Blacklisting HP hardware watchdog timer module ?

Alexandre DERUMIER aderumier at odiso.com
Wed Dec 2 12:13:07 CET 2015


>>I will ship a blacklist for all watchdog modules with newer kernels: 

Seem to be a good idea.

(Maybe add a wiki note about different watchdog module that user can defined in /etc/modules)

----- Mail original -----
De: "dietmar" <dietmar at proxmox.com>
À: "Emmanuel Kasper" <e.kasper at proxmox.com>, "pve-devel" <pve-devel at pve.proxmox.com>
Cc: "t lamprecht" <t.lamprecht at proxmox.com>
Envoyé: Mercredi 2 Décembre 2015 12:08:32
Objet: Re: [pve-devel] Blacklisting HP hardware watchdog timer module ?

I will ship a blacklist for all watchdog modules with newer kernels: 

https://git.proxmox.com/?p=pve-kernel.git;a=commitdiff;h=acea917faa9ef4974f984b9b2dc612e73d22d220 

With latest kernel you can show that blacklist with: 

# cat /lib/modprobe.d/blacklist_pve-kernel-4.2.6-1-pve.conf 

> On December 2, 2015 at 11:29 AM Emmanuel Kasper <e.kasper at proxmox.com> wrote: 
> 
> 
> Hi 
> It seems that the HP Watchdog timer does not work properly: it triggers 
> a kernel panic instead of rebooting the server. 
> 
> The issue came up here in this thread: 
> 
> http://forum.proxmox.com/threads/24015-VE-4-0-Kernel-Panic-on-HP-Proliant-servers 
> 
> At least 3 users seem to have solved the problem by blacklisting the 
> corresponding hpwdt kernel module. 
> 
> As remarked by Alexandre, the Ubuntu folks actually decided to black 
> *all* the hardware watchdog timers some time ago 
> ( https://lists.ubuntu.com/archives/kernel-team/2015-March/054512.html ) 
> 
> Should we add hpwdt to our list of blacklisted module ? 

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