Re: [PATCH] ARM: dts: meson8b: add reserved memory zone to fix silent freezes

From: Kevin Hilman
Date: Fri Oct 06 2017 - 18:59:59 EST

Linus LÃssing <linus.luessing@xxxxxxxxx> writes:

> So far, the stress-ng tool for instance quickly resulted in a silent
> freeze of the system with no prior notice on a serial console when
> running its filesystem or memory stressor classes.
> Even with a panic-on-OOM and reboot-on-panic (vm.panic_on_oom=1,
> kernel.panic=10) configured, the system would neither reboot nor
> would the OOM killer get any chance to otherwise do its job.
> The Amlogic reference source code uses a 2MB PHYS_OFFSET. With these 2MB
> reserved via DT, stress-ng was able to run on an Odroid C1+ just fine for
> several hours, the OOM killer was able to kill processes again and if
> configured would successfully trigger a reboot of the system.
> Fixes: 4a69fcd3a108 ("ARM: meson: Add DTS for Odroid-C1 and Tronfy MXQ boards")
> Signed-off-by: Linus LÃssing <linus.luessing@xxxxxxxxx>

Applied to v4.15/dt with Martin's Tested-by,