i.MX Processorsのトピックi.mx28 and large kernel with initramfs = oom killer

i.mx28 and large kernel with initramfs = oom killer

oskiercz — Tue, 13 May 2014 09:51:08 GMT

Hi everyone,

I'm trying to use kernel combined with initramfs which is 8MB big (uncompressed ~25MB), but when kernel is booting some oom-killer actions are taken (output attached). I have 128MB of RAM so size of memory is not an issue. I suspect that problem is that uncompressed initramfs + kernel overlaps some memory region which should not be touched. Is the size of memory for uncompressed kernel along with initramfs limited somehow? Could anybody help me? I can add that when kernel and initramfs image are separated then system works fine.

Thanks

Original Attachment has been moved to: initramfs.fail.zip

Re: i.mx28 and large kernel with initramfs = oom killer

igorpadykov — Wed, 14 May 2014 03:01:59 GMT

Hi oskiercz

for initramfs configuring please look link below

https://community.freescale.com/thread/305045

Best regards

chip

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Re: i.mx28 and large kernel with initramfs = oom killer

oskiercz — Wed, 14 May 2014 06:27:20 GMT

Hi chipexpert,

I forgot to add that I have to use u-boot as a bootloader, which as far as I understand, doesn't allow me to use imx28_(ivt_)linux.sb file (because it's booted itself, without any external bootloader), so second method from link you provided is not for me (third also because it's about separated images).

What I found out, that there is a size limit for kernel image (if initramfs is built in then overall size), here's a topic: Discussing the Linux ARM kernel. I think that the actual cause of my problems.

Any opinion would be welcomed.

Thanks