for-next/pgtable branch: OOM error with 16K page size

On 01/03/16 12:17, Suzuki K. Poulose wrote:

quoted

http://pastebin.com/Eszwp1cS

quoted

HugePages_Total:    2019
HugePages_Free:     2019
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:      32768 kB

That clearly tells you whats wrong. You have 2019x32M in hugepages.
Could you try releasing them and see if it solves the memory issue ?

$ echo 0 > /sys/kernel/mm/hugepages/hugepages-32768kB/nr_hugepages


btw, whats your root file system(to be more precise, the init) ?

Also, could you get the number of HugePages_Total with 4K and 64K ?

May be your init (or whatever allocates the hugepages) requires some
hints about 16K and do something similar to what it does for 64K.

Thanks
Suzuki