[PATCH v10 5/5] Watchdog: ARM SBSA Generic Watchdog half timeout panic support

[Thomas Petazzoni]

Hello,

On Fri, 5 Feb 2016 17:51:52 +0800, Fu Wei wrote:

> OK, my thought is
> 
> if panic is enabled :
> |--------WOR-------WS0--------WOR-------WS1
> |------timeout------(panic)------timeout-----reset

I'm quite certainly missing something completely obvious here, but how
can you get the WS1 interrupt *after* raising a panic? Aren't all
interrupts disabled and the system fully halted once you get a panic(),
especially when raised from an interrupt handler? If that's the case,
how can the system continue to do things, such as receiving the WS1
interrupt and resetting ?

Again, I'm probably missing something obvious, but I'm interested to
understand the reasoning here.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com