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Re: How to configure the hugepages group in Debian?




Quoting Mikhail Morfikov (2019-05-07 13:12:47)
> There's an entry on the Debian wiki[1] where people can read about the 
> hugepages in Debian, but I don't really think this article is up to 
> date. Basically when you look at the mount points in the system, you 
> can also see this one:
> 
>    #  mount | grep -i huge
>    hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
> 
> I don't have any fstab entries that would allow to mount /dev/hugepages . 
> So something is mounting it automatically, but I couldn't find any info 
> what that would be.
> 
> It's not really a problem what and where mounts the resource, but I 
> wanted to configure the group that can be set via the 
> "vm.hugetlb_shm_group" sysctl parameter. There's info on the Debian wiki 
> how to do this, and I wanted to add the following entry to the 
> /etc/fstab file in order to configure the group:
> 
>     hugetlbfs /dev/hugepages hugetlbfs rw,relatime,pagesize=2M,mode=1770,gid=5555 0 0
> 
> But this doesn't really work. I mean, those mount options aren't 
> set or are reset. So how to configure this thing?
> 
> [1] https://wiki.debian.org/Hugepages

You probably use systemd: system/dev-hugepages.mount


 - Jonas

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