shmget with SHM_HUGETLB flag: Operation not permitted

[Jochen Roemling]

Hi,

I'm using stock kernel 2.6.2. I have HUGETLB support compiled in.

CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y

When issuing this command in a C pgm

shmid =shmget(IPC_PRIVATE, SOMESIZE, SHM_HUGETLB|IPC_CREAT|SHM_R|SHM_W)

I get "Operation not Permitted" when running it as a normal user. It
works for root. Without the SHM_HUGETLB flag it works fine for all users.

How can I grant the permission to use HUGETLB to ordinary users?


Jochen



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