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

[Suzuki K. Poulose]

On 01/03/16 12:03, Jaggi, Manish wrote:
>>> From: Suzuki K. Poulose <Suzuki.Poulose at arm.com>
>>> Sent: Tuesday, March 1, 2016 4:53 PM
>>> To: Jaggi, Manish
>>> Cc: linux-arm-kernel at lists.infradead.org; mark.rutland at arm.com
>>> Subject: Re: for-next/pgtable branch: OOM error with 16K page size
>>>

>>> Could you please provide the complete o/p of the following
>>> with 16K ?
>>>
>>> 1) /proc/meminfo

> http://pastebin.com/Eszwp1cS

> 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) ?

Cheers
Suzuki