On Fri, 2 Mar 2012 13:46:30 -0800 (PST), Dan Scales wrote:
> Hi Eric,
>
> Sorry to contact you directly, but the libhugetlbfs mailing list on
> sourceforge seems to be inactive and overrun with spam.
>
> The libhugetlbfs code is great, and we have been able to use it to
> map text of executables in Linux as large pages.  However, we are
> running into problems with new versions of Linux that contain
> /dev/hugepages.
>
> We are using hugetlbfs-2.12 in order to use large pages for the code
> of an executable running as a non-root user.  Things work for Linuxes
> around 2.6.32 or so.  However, we are also trying to run on a Linux
> 3.0 variant that contains /dev/hugepages with root ownership,
> protection 755.  I am getting the same problem as described here:
>
>    http://permalink.gmane.org/gmane.comp.lib.libhugetlbfs.devel/16814
>
> Are you planning to fix this issue anytime soon, by doing permission
> checks on the available mounts?  I can file a bug at sourceforge if
> you would like.
>
> Thanks,
>
> Dan Scales
> sca...@vmware.com

Hi Dan,

I have a patch in the -next version of libhugetlbfs that checks mount 
permissions before trying to use a specific mount point.  I plan on 
packaging libhugetlbfs 2.13 this weekend or next depending on my 
schedule.  I will send out an announcement to the list when the release 
goes out and I will make sure that you are cc'd.

Thanks,
Eric


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