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

Dietmar Maurer dietmar at proxmox.com
Wed Dec 2 12:08:32 CET 2015

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


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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