From mboxrd@z Thu Jan 1 00:00:00 1970 From: khilman@baylibre.com (Kevin Hilman) Date: Fri, 06 Oct 2017 15:59:40 -0700 Subject: [PATCH] ARM: dts: meson8b: add reserved memory zone to fix silent freezes In-Reply-To: <20171002155903.19511-1-linus.luessing@c0d3.blue> ("Linus =?utf-8?Q?L=C3=BCssing=22's?= message of "Mon, 2 Oct 2017 17:59:03 +0200") References: <20171002155903.19511-1-linus.luessing@c0d3.blue> Message-ID: <7h1smf992b.fsf@baylibre.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Linus L?ssing 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 L?ssing Applied to v4.15/dt with Martin's Tested-by, Thanks, Kevin