Re: [PATCH v2] Documentation/tracing: Mention that RESET_ATTACK_MITIGATION can clear memory
From: Steven Rostedt
Date: Mon Oct 07 2024 - 13:09:06 EST
On Mon, 07 Oct 2024 11:06:06 -0600
Jonathan Corbet <corbet@xxxxxxx> wrote:
> Steven Rostedt <rostedt@xxxxxxxxxxx> writes:
>
> > Jon,
> >
> > This version should be good to go.
>
> Applied, thanks.
And I now see I sent an older version that had a typo in it :-p
+ Note, saving the trace buffer across reboots does require that the system
+ is set up to not wipe memory. For instance, CONFIG_RESET_ATTACK_MITIGATION
+ can force a memory reset on boot which will clear any trace that was stored.
+ This is just one of many ways that can clear memory. Make sure you system
your system
+ keeps the content of memory across reboots before relying on this option.
+
I can send a v3.
-- Steve