On Sun, 16 Jan 2011 10:14:33 +0100 Roberto Ragusa <mail@xxxxxxxxxxxxxxxx> wrote: > Tomasz Torcz wrote: > > On Sat, Jan 15, 2011 at 07:38:21AM -0800, John Reiser wrote: > >> This is a full rebuild of all >10k packages. Due to the > >> RemoveSUID feature in Fedora 15, mock can no longer use tmpfs > >> buildroots, meaning this run takes 4 days instead of <1. Progress? > >> > >> A slowdown by a factor of 4 is a high price to pay for the impact > >> of RemoveSUID. I'd rather pay at most 30%, and not a factor of 4. > > > > That's the extreme corner case, caused by bug in tmpfs (lack > > of filecaps?). Upstream kernel bug, I would say. > > Which filesystems support filecaps? I don't know if there is a list anywhere... all the main ones do: ext*, btrfs, xfs, etc. > Will the RemoveSUID feature reduce the number of filesystem usable in > F15? Depends on what you mean by "usable". Usable as filesystems that contain packaged files? See also: http://lkml.indiana.edu/hypermail/linux/kernel/1101.1/01210.html Patch submitted for upstream feedback that adds caps to tmpfs. This should hopefully get into the mainstream/fedora kernels soon. If it doesn't, we will probibly revert the feature. kevin
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