From mboxrd@z Thu Jan 1 00:00:00 1970 From: stigge@antcom.de (Roland Stigge) Date: Mon, 13 Apr 2015 10:01:14 +0200 Subject: NXP LPC3250 broken? In-Reply-To: References: Message-ID: <552B77CA.2070604@antcom.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, have you tried to compare with an NXP dev kit? I also have an EA board but not currently connected. Will need to test when I have access to it again. Thanks for reporting, Roland On 04/12/2015 04:20 PM, Joachim Eastwood wrote: > Hi, > > I recently got a Embedded Artist LPC3250 (ea3250.dts) board that I > wanted to test mainline Linux on. > > But with lpc32xx_defconfig, ea3250.dts and the latest rc (v4.0-rc7) I am > not getting very far. > > First I got a "kernel NULL pointer dereference". See > http://slexy.org/raw/s211rzbZL1 > I got around this one by disabling the leds-gpio driver. > > Then, without leds-gpio, I get an endless stream of "unexpected IRQ trap > at vector 00" messages. > See: http://slexy.org/raw/s2S5Z9TtoV > > I also tried an older kernel (3.18). This one seemed at first to hang > but after a short while I got lots of backtraces which seem to involve > rcu, tick and timer interrupt. > See: http://slexy.org/raw/s2024RXCkX > > Does anyone got any ideas on what may be going on? > > > When I get a bit more time to play around with the kit I will try even > older kernels to see if I can get it working at all. > > best regards, > Joachim Eastwood