Re: hugetlbfs not working

Avi Kivity
2008-03-27T15:19:54Z

Alexander Graf wrote:
> Hi,
>
> I'm currently trying to get hugetlbfs working on the current git
> version and am quite puzzled to see it not working. It appears as if
> the ftruncate call fails:
>
> open("/dev/hugetlbfs//kvm.vI3G8z", O_RDWR|O_CREAT|O_EXCL, 0600) = 7
> unlink("/dev/hugetlbfs//kvm.vI3G8z") = 0
> ftruncate(7, 157286400) = -1 EINVAL (Invalid argument)
> dup(2) = 8
> fcntl(8, F_GETFL) = 0x8001 (flags O_WRONLY|
> O_LARGEFILE)
> close(8) = 0
> write(2, "ftruncate: Invalid argument\n", 28ftruncate: Invalid argument
> ) = 28
> close(7) = 0
>
> My host kernel is a 2.6.22.
>
> Is this supposed to work? The first version did not have the ftruncate
> call, so maybe it doesn't work at all with hugetlbfs?
>

Are you on i386 non-pae? that has 4MB pages, while you're asking for
for 37.5 4MB pages.

Try adding 2MB to the requested memory size.

--
error compiling committee.c: too many arguments to function