[pve-devel] ipmi_watchdog : new panic_wdt_timeout param in kernel 4.4

Dietmar Maurer dietmar at proxmox.com
Thu Jun 9 06:21:40 CEST 2016


> I have notice since month that a kernel panic with ipmi watchdog, never
> restart the server before 4-5min.
> 
> It seem that ipmi_watchdog had an hardcoded value of 255s when kernel panic
> occur, to have time to trigger kdump.
> 
> kernel 4.4 introduce a new option : panic_wdt_timeout , to reduce it 
> 
> https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=c7f42c63901b964833eb23a9bda873b799e7f308

Wow - that is really strange behavior - they simply overwrite user configured
values on kernel panic.

On the other side, all user space processes are stopped, so it does not really
harm?



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