mmap on GNU Hurd

[Thomas Schwinge]

Hi!

On Tue, 30 Apr 2013 00:47:47 +0000, Jacob Appelbaum <jacob@appelbaum.net> wrote:
> I've noticed that mmap() doesn't behave as expected

There are known issues with mmap, in particular it (currently) doesn't
work at all on filesystem based on libnetfs (such as NFS, ftpfs, etc.),
<http://www.gnu.org/software/hurd/open_issues/git_nfs_mmap.html>,
<http://www.gnu.org/software/hurd/open_issues/libnetfs_io_map.html>.
More details: <http://www.gnu.org/software/hurd/glibc/mmap.html>.  A few
individual issues filed:
<http://www.gnu.org/software/hurd/open_issues/mmap_crash_etc.html>,
<http://www.gnu.org/software/hurd/open_issues/mmap_write-only.html>.
And, there's no mremap,
<http://www.gnu.org/software/hurd/open_issues/glibc/mremap.html>.

If you tell us what you're seeing with mmap and what you'd expect to see,
we should quickly be able to tell "who's at fault".


Grüße,
 Thomas

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