On 26/05/15 17:41, Maxime Coquelin wrote:
  2. Allocating ~80 clock components appears to fragment memory enough
     to prevent busybox (.text is ~300K, non-XIP) from running getty.
     I have to use "init=/bin/sh" to avoid OOM problems.

Yes, I reproduced the same issue while testing your work.

Could you try with:
CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0

It solves (hides) the problem on my side.
You can eventually setting it once booted to 1 via procfs.

That works for me too. Thanks.

Incidentally switching to SLOB also reduced the problem for me. It was OK whilst I had ~20 clocks (and debugfs) but not enough for me to run with all the clocks registered.


Daniel.



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