From mboxrd@z Thu Jan 1 00:00:00 1970 From: db.pub.mail@gmail.com (dave b) Date: Fri, 12 Mar 2010 00:10:37 +1100 Subject: weirdness with compiling a 2.6.33 kernel on arm debian In-Reply-To: <20100308103108.GF28972@buzzloop.caiaq.de> References: <25ae2d691003051958x72040b47g29d842f1d389a6cf@mail.gmail.com> <19346.6765.457769.167118@pilspetsen.it.uu.se> <25ae2d691003060224x67ab1c9au5102c8a22518aff@mail.gmail.com> <20100306104131.GV28972@buzzloop.caiaq.de> <25ae2d691003061705l5fc0bca7n4a07f558a0c410cf@mail.gmail.com> <20100308095337.GB27502@pengutronix.de> <20100308103108.GF28972@buzzloop.caiaq.de> Message-ID: <25ae2d691003110510pb19a74an337e764e54e9522f@mail.gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 2010/3/8 Daniel Mack : > On Mon, Mar 08, 2010 at 10:53:37AM +0100, Uwe Kleine-K?nig wrote: >> On Sun, Mar 07, 2010 at 12:05:21PM +1100, dave b wrote: >> > Ok... however how should one test the memory of an arm machine? ... >> > memtest is only for x86. *I am referring to the kernel memtest and not >> > memtest86. >> The easiest is: ?rerun make and check if it fails at exactly the same >> place. > > Hmm, I wonder whether this is in any way related to what Pavel and Cyril > reported in the 'bit error' thread. > > Dave, does your bootloader have any memory test built-in? Do you see the > same issues with any older kernel? > > FWIW, we're currently hunting a strange bug with hanging tasks, which > only seems to affect systems with Wifi enabled. That might be totally > unrelated to both of these issues though. > > Daniel > U-boot apparently has a very simple memory checker, this doesn't help me as I don't have serial access. I have now re-compiled the 2.6.33 kernel whilst the device has been on the 2.6.33 kernel 4 times now *without* an *error*. I also ran memtester for a while using most of the memory on the device, without invoking the oom killer. I will re-run these tests on the 2.6.32.7 kernel soon.