Thanks for the quick reponse, On Tue, Sep 9, 2014 at 10:55 AM, Peter Robinson <pbrobin...@gmail.com> wrote:
> Hi Martin, > > > I am have been building a Fedora 20 image for the XO4, and I am seeing > > memory corruption problems while running yum in these images (please > check > > the logs [1,2]). > > The logs don't mean anything to me. What device are you running it on, > how much memory, do you have swap enabled? > It is running on a XO4, with 999MB ram and no swap. Maybe James can explain better what other specs are for the XO4. > > > To give you some context, we are using olpc-os-builder (master [3]) with > > fc20 repositories plus a few hand-crafted packages such as the kernel, > > systemd and xorg, taken from previous Daniel Narvaez efforts [4,5]. > > > > These crashes happens randomly when yum is running, by calling yum > update or > > when olpc-os-build is installing system packages. > > Yum isn't the most memory friendly, and some of the post update > scripts aren't either, you need to make sure there's enough > memory/swap. > I am not so sure this is related to memory usage really, as it happens even when I am installing just a few packages (located in FS) via "yum update /packages/*.rpm". > > > James Cameron, who spent some time researching about this issue, > speculates > > that this problem could be caused by: (a) using older kernel that was > > compiled (possibly) with different options compared to f20's, or (b) a > > faulty glibc library. > > > > I was wondering if this could be related to something else, something > more > > specific to yum or python arm binaries (?). > > Unlikely, I've not seen issues elsewhere. But I need more details. > What kind of details would you need? I can try reproducing and send what you need. > > > I would sincerely appreciate any guidance you can provide to start > > discarding possibilities and try to debug this issue. > > > > Thanks in advance for any help you can provide! > > What version of OOB are you using, and what config files? I can try > and recreate the problem here on other devices. > This problem occurs in all f20 images for the XO4 that we or others have created. The latest images were created using: * OLPC's OOB masterbranch: git://dev.laptop.org/projects/olpc-os-builder * OLPC's .ini file: http://dev.laptop.org/git/projects/olpc-os-builder/tree/examples/olpc-os-14.1.0-xo4.ini In case you have a XO4 with you, and have the time to try this out, you can download an image from http://system.one-education.org/au2a/images/testing/40002au4/ > Peter >
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